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US3680498A - Structure and a method for isolating a building against radioactive fallout - Google Patents

Structure and a method for isolating a building against radioactive fallout Download PDF

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US3680498A
US3680498A US781123A US3680498DA US3680498A US 3680498 A US3680498 A US 3680498A US 781123 A US781123 A US 781123A US 3680498D A US3680498D A US 3680498DA US 3680498 A US3680498 A US 3680498A
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containers
shelves
shielding
shelving
shielding material
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Charles J Roos
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material

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  • a method for providing radioactive fallout shielding for a structure having the following steps: providing portable containers; providing a plurality of shelves for supporting said containers; arranging said shelves adjacent to a generally non-shielding defining surface of said structure; placing said portable containers on said shelves in closely adjacent fashion such that each of said shelves supports a generally horizontal row of containers; and filling said portable containers with shielding material such that a substantially continuous wall of shielding material is formed adjacent to said defining surface of said structure such that the shielding ability of said surface is increased.
  • This invention relates to shelters and, more particularly, to radioactive shelters capable of temporary and speedy installation within typical homes or office buildings in case of the presence of excessive radiation.
  • FIG. 1 is a front elevation of collapsible shelving expanded
  • FIG. 2 shows two walls of a room equipped with bars from which the shelving could be hung
  • FIG. 3 is an end elevation of collapsible shelving expanded and hung from rods on the wall, said rods being shown in cross section;
  • FIG. 4 is a cross sectional view of expanded shelving filled with containers holding water or other shielding material
  • FIG. 5 shows a collapsible container for holding the shielding material
  • FIG. 6 is a cross sectional view of expanded shelving laying horizontally on an attic floor and holding containers filled with shielding material.
  • the components of this invention include collapsible, portable shelving 10, supporting rods 20 which are fastened to the walls of the building which is to be shielded, shielding material containers 30, and some sort of shielding material 40 which can be placed in the shielding containers 30.
  • the collapsible, portable shelving 10 is composed of shelves 1 1 which are preferably slanted when the shelving is in its operative position, container stops 12 which help prevent the containers of shielding material from sliding off the shelf, a front support member 13, a back support member 14, hanging means 15 which may be used to hang the shelving to rods on the wall of the building to be shielded, and some sort of connecting means 16 which secure the shelves 11 to the front and back supporting members 13 and 14 and which are free to rotate in order that the shelving may be collapsed for easier storage.
  • the shelves 11 can be made of wood or metal. The same is true of the front support member 13 and the back support member 14.
  • the hanging means 15 can be some sort of hook screwed into the back support member 14 or it may be a long, L-shaped wooden member which is fastened to each of the back support members 14.
  • the container stops 12 can be of the same material that the shelves 11 are made of. If the shelves 11 are made of a material such as metal, the container stops 12 could actually constitute an integral part of the shelves 11 and could be formed by merely bending the sheet of metal from which the shelf was made.
  • a connecting means 16 might merely be a bolt inserted through a loosely fitting hole in either the front or back supporting member 13 or 14 and screwed into a shelf 1 1.
  • hanging rods 20 could be fastened to the walls of the rooms for which shielding might be desired in an emergency.
  • Such rods could be made of wooden dowels, plastic dowels, metal, etc., and could be screwed to the walls of a room.
  • the shielding containers 30 are preferably somewhat flexible so that when a row of containers 30 are placed on a shelf 11 they will tend to squeeze together and prevent the possibility of gaps through which radiation could travel.
  • the containers 30 are preferably sufficiently large and/or the shelving sufficiently closely spaced that when placed on one shelf 11 they also fit fairly snugly to the bottom of the next elevated shelf 11.
  • Polyethylene bags or waxed paper bags would provide suitable containers. Even waxed milk cartons would be fairly good containers, although they are not as flexible as polyethylene or paper bags.
  • the key factor in choosing an effective shielding material is density.
  • concrete with a density of 144 pounds per cubic foot is the material most often chosen for fallout shelters.
  • water with a density of about 63 pounds per cubic foot is also a relatively effective shielding material.
  • the containers 30 could be placed on the shelves 11 of the collapsible, portable shelving 10 and thereafter filled with water. Filling can be accomplished, for example, by means of a garden hose connected to a suitable hydrant.
  • This invention thus, provides a system which may be stored in an out-of-theway location and, yet, set up quickly in the event that shielding becomes desirable. It'is necessary only to pivot the shelving into bag receiving position, insert the bags and fill them with water or the like. If a hose is utilized in the manner suggested, lifting of the heavy material (the fluid) is eliminated completely.
  • a material such as borax could be placed in solution in the water.
  • a mixture of sand and water could be placed in the containers 30.
  • Lead pellets could be placed in the containers 30 which could then be filled with water in order to fill gaps between the pellets.
  • the shelves are preferably slanted rather than horizontal in order to prevent the possibility of spaces or gaps which would not be blocked by shielding material and to avoid problems of sealing the openings of the bags 30.
  • the shelving could merely stand on the floor against a wall and be supported solely by its front and back support members 13 and 14 respectively.
  • the hanging means 15 make it possible to give extra support to the shelving by hanging it on rods 20 which could be connected to the walls of the rooms to which shielding were to be provided.
  • rods 20 are shown on the walls of a room in FIG. 2. Even when such rods are used, the support members 13 and 14 would still preferably rest on the floor of the room since the shelving must preferably cover the entire wall. In addition, the front support member 13 in resting on the floor would prevent the shelving from unfolding too far. However, appropriate stops could be provided to prevent this even if the support members did not touch the floor.
  • the shielding material containers 30 are placed in rows on the shelves 11 of the shelving 10 and filled with shielding material 40.
  • Each shelf 11 is packed tightly with containers 30 in order to prevent any gaps. In this fashion a continuous wall of shielding can be provided to an ordinary room.
  • the present invention can be effectively used to provide overhead shielding by merely laying the shelving, in its operative position, horizontally on the rafters of an attic or on the floor of an upper story rather than standing it or hanging it against a wall vertically.
  • One problem is that since the shelving is collapsible, it would tend to collapse where the supporting members 13 and 14 were not resting against a floor.
  • One way to avoid this would be simply to place some sort of block between the two supporting members l3 and 14.
  • a more ingenious way and the way shown in FIG. 6 would be to provide container stops 12 of sufficient length that as the shelving is unfolded in a clockwise direction, each shelf 11 would eventually come to rest against a container stop 12. The shelves could not collapse unless they were folded back in a counterclockwise direction.
  • a method for providing radioactive fallout shielding for a structure having the following steps: providing portable containers; providing a plurality of shelves for supporting said containers; arrangin s 'd she ves a a nt to a en r I no -shieldi de m r ig s ace of structur%; pla iri g said portab l containers on said shelves in closely adjacent fashion such that each of said shelves supports a generally horizontal row of containers; and filling said portable containers with shielding material such that a substantially continuous wall of shielding material is formed adjacent to said defining surface of said structure such that the shielding ability of said surface is increased.
  • An apparatus providing radioactive fallout shielding to a structure comprising in combination: shelving which can be arranged to improve the shielding ability of a defining surface of said structure; containers arranged on said shelving in closely adjacent fashion; shielding material; said containers being filled with said shielding material such that a substantially continuous wall of shielding material is formed thereby; said shelving further comprising shelves which are slanted with respect to the horizontal such that said containers on one shelf of said shelving overlap those on adjacent shelves in order to prevent the possibility of gaps which would not be blocked by shielding material.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

1. A method for providing radioactive fallout shielding for a structure, said method having the following steps: providing portable containers; providing a plurality of shelves for supporting said containers; arranging said shelves adjacent to a generally non-shielding defining surface of said structure; placing said portable containers on said shelves in closely adjacent fashion such that each of said shelves supports a generally horizontal row of containers; and filling said portable containers with shielding material such that a substantially continuous wall of shielding material is formed adjacent to said defining surface of said structure such that the shielding ability of said surface is increased.

Description

United States Patent Roos [ 51 Aug. 1,1972
[72] Inventor: Charles J. Roos, 1832 E. Isabella Ave., Muskegon, Mich. 49442 [22] Filed: Dec. 4, 1968 [21] Appl. No.: 781,123
52 u.s.c|. ..109 1s,25o 1os 51 Int. Cl. ..G21f7/00,EO4h 9/04 58 FieldotSearch ..109/1,1S,82;52/168;
Hallock et al ..2l l/149 OTHER PUBLICATIONS Asbestos- Cement Products Association, Fallout Shelter Primary ExaminerJ. Karl Bell Attorn'eyPrice, l-leneveld, l-Iuizenga & Cooper EXEMPLARY CLAIM l. A method for providing radioactive fallout shielding for a structure, said method having the following steps: providing portable containers; providing a plurality of shelves for supporting said containers; arranging said shelves adjacent to a generally non-shielding defining surface of said structure; placing said portable containers on said shelves in closely adjacent fashion such that each of said shelves supports a generally horizontal row of containers; and filling said portable containers with shielding material such that a substantially continuous wall of shielding material is formed adjacent to said defining surface of said structure such that the shielding ability of said surface is increased.
8 Claims, 6 Drawing Figures PATENTEBMIB H912 3.680.498
SHEET 1 0F 2 FIG.Z
I NVENTOR. EMQPLES J. E005 BY W PMENTEDAUB H9 2 SHEET 2 0F 2 o o L X/ 0/ /o o 0 0i FIG. 3.
INVENTOR- @4 40; 5.5 J. Pa 05 STRUCTURE AND A METHOD FOR ISOLATING A BUILDING AGAINST RADIOACTIVE FALLOUT This invention relates to shelters and, more particularly, to radioactive shelters capable of temporary and speedy installation within typical homes or office buildings in case of the presence of excessive radiation.
Every year, millions of dollars are spent in providing buildings with shelters against radioactive fallout. These shelters are of a permanent nature and, because the material used must be dense, are generally constructed of steel and concrete. Such permanent structures are extremely costly and, of course, are little used. Consequently, in spite of frequent urgings from government officials, such fallout protection is not available to the vast majority of American families.
It is the object of this invention to obviate this dangerous condition by providing an inexpensive and reasonably convenient means of making any ordinary building or home an effective shield against radiation fallout. This is accomplished by providing collapsible, portable shelving which under ordinary circumstances can be stored in an attic or basement. In an emergency, such shelving can be erected and placed against walls and laid in attics. In many types of homes the shelving may be permanently installed in the attic. For purposes of stability, the walls of the building could have rods from which the shelving could be hung. When erected, the shelving would provide slanting shelves which could accommodate containers filled with water or other shielding material.
All of the above objects are made possible by the construction as illustrated in the drawings wherein:
FIG. 1 is a front elevation of collapsible shelving expanded;
FIG. 2 shows two walls of a room equipped with bars from which the shelving could be hung;
FIG. 3 is an end elevation of collapsible shelving expanded and hung from rods on the wall, said rods being shown in cross section;
FIG. 4 is a cross sectional view of expanded shelving filled with containers holding water or other shielding material;
FIG. 5 shows a collapsible container for holding the shielding material; and
FIG. 6 is a cross sectional view of expanded shelving laying horizontally on an attic floor and holding containers filled with shielding material.
Now referring more specifically to the drawings, the following is a description of the preferred embodiments of this invention.
Generally, the components of this invention include collapsible, portable shelving 10, supporting rods 20 which are fastened to the walls of the building which is to be shielded, shielding material containers 30, and some sort of shielding material 40 which can be placed in the shielding containers 30.
The collapsible, portable shelving 10 is composed of shelves 1 1 which are preferably slanted when the shelving is in its operative position, container stops 12 which help prevent the containers of shielding material from sliding off the shelf, a front support member 13, a back support member 14, hanging means 15 which may be used to hang the shelving to rods on the wall of the building to be shielded, and some sort of connecting means 16 which secure the shelves 11 to the front and back supporting members 13 and 14 and which are free to rotate in order that the shelving may be collapsed for easier storage. The shelves 11 can be made of wood or metal. The same is true of the front support member 13 and the back support member 14. The hanging means 15 can be some sort of hook screwed into the back support member 14 or it may be a long, L-shaped wooden member which is fastened to each of the back support members 14. The container stops 12 can be of the same material that the shelves 11 are made of. If the shelves 11 are made of a material such as metal, the container stops 12 could actually constitute an integral part of the shelves 11 and could be formed by merely bending the sheet of metal from which the shelf was made. A connecting means 16 might merely be a bolt inserted through a loosely fitting hole in either the front or back supporting member 13 or 14 and screwed into a shelf 1 1.
In order to give the shelving added sturdiness, hanging rods 20 could be fastened to the walls of the rooms for which shielding might be desired in an emergency. Such rods could be made of wooden dowels, plastic dowels, metal, etc., and could be screwed to the walls of a room. Preferably, there is an upper rod and a lower rod for hanging each unit of shelving.
The shielding containers 30 are preferably somewhat flexible so that when a row of containers 30 are placed on a shelf 11 they will tend to squeeze together and prevent the possibility of gaps through which radiation could travel. In addition, the containers 30 are preferably sufficiently large and/or the shelving sufficiently closely spaced that when placed on one shelf 11 they also fit fairly snugly to the bottom of the next elevated shelf 11. Polyethylene bags or waxed paper bags would provide suitable containers. Even waxed milk cartons would be fairly good containers, although they are not as flexible as polyethylene or paper bags.
It is well known that the key factor in choosing an effective shielding material is density. Thus, concrete with a density of 144 pounds per cubic foot is the material most often chosen for fallout shelters. However, water with a density of about 63 pounds per cubic foot is also a relatively effective shielding material. It is used, in fact, in certain kinds of nuclear reactors. Thus, the containers 30 could be placed on the shelves 11 of the collapsible, portable shelving 10 and thereafter filled with water. Filling can be accomplished, for example, by means of a garden hose connected to a suitable hydrant. This invention, thus, provides a system which may be stored in an out-of-theway location and, yet, set up quickly in the event that shielding becomes desirable. It'is necessary only to pivot the shelving into bag receiving position, insert the bags and fill them with water or the like. If a hose is utilized in the manner suggested, lifting of the heavy material (the fluid) is eliminated completely.
To give the water additional density, a material such as borax could be placed in solution in the water. Or, a mixture of sand and water could be placed in the containers 30. Lead pellets could be placed in the containers 30 which could then be filled with water in order to fill gaps between the pellets. At any rate, it is clear that there are a number of inexpensive materials which could be placed in the shielding material containers and which would provide fairly effective shielding against nuclear radiation.
When the shelving is in its operative position, the shelves are preferably slanted rather than horizontal in order to prevent the possibility of spaces or gaps which would not be blocked by shielding material and to avoid problems of sealing the openings of the bags 30. The shelving could merely stand on the floor against a wall and be supported solely by its front and back support members 13 and 14 respectively. However, the hanging means 15 make it possible to give extra support to the shelving by hanging it on rods 20 which could be connected to the walls of the rooms to which shielding were to be provided. Such rods 20 are shown on the walls of a room in FIG. 2. Even when such rods are used, the support members 13 and 14 would still preferably rest on the floor of the room since the shelving must preferably cover the entire wall. In addition, the front support member 13 in resting on the floor would prevent the shelving from unfolding too far. However, appropriate stops could be provided to prevent this even if the support members did not touch the floor.
After the shelving is erected, the shielding material containers 30 are placed in rows on the shelves 11 of the shelving 10 and filled with shielding material 40. Each shelf 11 is packed tightly with containers 30 in order to prevent any gaps. In this fashion a continuous wall of shielding can be provided to an ordinary room. To provide additional security, one could provide a wall of shielding twice as thick or three times as thick by erecting and filling additional adjacent rows of shelving.
In shielding the rooms of buildings which have several stories of rooms above them, there may not be a great necessity for providing overhead shielding since the higher stories will effectively act as such. However, in one or two story homes, the present invention can be effectively used to provide overhead shielding by merely laying the shelving, in its operative position, horizontally on the rafters of an attic or on the floor of an upper story rather than standing it or hanging it against a wall vertically. One problem is that since the shelving is collapsible, it would tend to collapse where the supporting members 13 and 14 were not resting against a floor. One way to avoid this would be simply to place some sort of block between the two supporting members l3 and 14. However, a more ingenious way and the way shown in FIG. 6 would be to provide container stops 12 of sufficient length that as the shelving is unfolded in a clockwise direction, each shelf 11 would eventually come to rest against a container stop 12. The shelves could not collapse unless they were folded back in a counterclockwise direction.
It is understood that the above description is a without departing from the broad aspects and spirit of this invention.
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows.
1. A method for providing radioactive fallout shielding for a structure, said method having the following steps: providing portable containers; providing a plurality of shelves for supporting said containers; arrangin s 'd she ves a a nt to a en r I no -shieldi de m r ig s ace of structur%; pla iri g said portab l containers on said shelves in closely adjacent fashion such that each of said shelves supports a generally horizontal row of containers; and filling said portable containers with shielding material such that a substantially continuous wall of shielding material is formed adjacent to said defining surface of said structure such that the shielding ability of said surface is increased.
2. The method of claim 1 which also includes the step of slanting said shelves with respect to the horizontal such that said containers on one shelf overlap those on adjacent shelves in order to prevent the possibility of gaps which would not be blocked by shielding material.
3. The method of claim 2 wherein the particular order in which the steps of said method are carried out includes arranging said portable containers on said shelves in a closely adjacent fashion and thereafter filling said portable containers with said shielding material.
4. An apparatus providing radioactive fallout shielding to a structure, said apparatus comprising in combination: shelving which can be arranged to improve the shielding ability of a defining surface of said structure; containers arranged on said shelving in closely adjacent fashion; shielding material; said containers being filled with said shielding material such that a substantially continuous wall of shielding material is formed thereby; said shelving further comprising shelves which are slanted with respect to the horizontal such that said containers on one shelf of said shelving overlap those on adjacent shelves in order to prevent the possibility of gaps which would not be blocked by shielding material.
5. The apparatus of claim 4 wherein said shelving and said containers are portable.
6. The apparatus of claim 5 wherein said portable containers are generally flexible such that they will tend to squeeze together and prevent the possibility of gaps through which radiation could travel when arranged in said closely adjacent fashion on said shelving.
7. The apparatus as set forth in claim 4 wherein said shielding material comprises a liquid.
8. The apparatus as set forth in claim 7 wherein said preferred embodiment of this invention and that many liquid is Pdmarily different modifications and forms can be made thereof

Claims (8)

1. A method for providing radioactive fallout shielding for a structure, said method having the following steps: providing portable containers; providing a plurality of shelves for supporting said containers; arranging said shelves adjacent to a generally non-shielding defining surface of said structure; placing said portable containers on said shelves in closely adjacent fashion such that each of said shelves supports a generally horizontal row of containers; and filling said portable containers with shielding material such that a substantially continuous wall of shielding material is formed adjacent to said defining surface of said structure such that the shielding ability of said surface is increased.
2. The method of claim 1 which also includes the step of slanting said shelves with respect to the horizontal such that said containers on one shelf overlap those on adjacent shelves in order to prevent the possibility of gaps which would not be blocked by shielding material.
3. The method of claim 2 wherein the particular order in which the steps of said method are carried out includes arranging said portable containers on said shelves in a closely adjacent fashion and thereafter filling said portable containers with said shielding material.
4. An apparatus providing radioactive fallout shielding to a structure, said apparatus comprising in combination: shelving which can be arranged to improve the shielding ability of a defining surface of said structure; containers arranged on said shelving in closely adjacent fashion; shielding material; said containers being filled with said shielding material such that a substantially continuous wall of shielding material is formed thereby; said shelving further comprising shelves which are slanted with respect to the horizontal such that said containers on one shelf of said shelving overlap those on adjacent shelves in order to prevent the possibility of gaps which would not be blocked by shielding material.
5. The apparatus of claim 4 wherein said shelving and said containers are portable.
6. The apparatus of claim 5 wherein said portable containers are generally flexible such that they will tend to squeeze together and prevent the possibility of gaps through which radiation could travel when arranged in said closely adjacent fashion on said shelving.
7. The apparatus as set forth in claim 4 wherein said shielding material comprises a liquid.
8. The apparatus as set forth in claim 7 wherein said liquid is primarily water.
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995165A (en) * 1973-12-01 1976-11-30 L. & C. Steinmuller Gmbh Method of and device for screening the source of rays dangerous to human health
US4654188A (en) * 1985-01-11 1987-03-31 Westinghouse Electric Corp. Pivotably mounted reactor shroud shield and shielding method
US5929458A (en) * 1996-05-07 1999-07-27 Hitachi, Ltd. Radiation shield
US6051185A (en) * 1996-12-18 2000-04-18 Sterigenics International Apparatus for performing gamma irradiation
WO2004003934A1 (en) * 2002-07-01 2004-01-08 Elekta Ab (Publ) A mobile building unit as well as a building and a method for constructing the building
EP1449986A1 (en) * 2003-02-21 2004-08-25 Albert Claerbout Protective enclosure
US20040163337A1 (en) * 2003-02-21 2004-08-26 Albert Claerbout Protective enclosure
US20080016815A1 (en) * 2006-07-24 2008-01-24 Foster Stanley E Portable nuclear radioactive fallout shelter and preservation of potable water storage system
US20080203331A1 (en) * 2007-02-12 2008-08-28 Murphy Brent D Mobile radiation treatment facility
US8621789B2 (en) 2011-07-08 2014-01-07 Michael Francis Trochan Storm shelter and method of use thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2087421A (en) * 1936-07-27 1937-07-20 Northrup King & Company Knock-down stand for display trays
US2897668A (en) * 1951-12-01 1959-08-04 Graham Phillip Building construction
US3104060A (en) * 1960-12-07 1963-09-17 Robertson Co H H Fire extinguishing system and apparatus
US3235096A (en) * 1964-03-17 1966-02-15 Carl E Hallock Display rack with folding shelves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2087421A (en) * 1936-07-27 1937-07-20 Northrup King & Company Knock-down stand for display trays
US2897668A (en) * 1951-12-01 1959-08-04 Graham Phillip Building construction
US3104060A (en) * 1960-12-07 1963-09-17 Robertson Co H H Fire extinguishing system and apparatus
US3235096A (en) * 1964-03-17 1966-02-15 Carl E Hallock Display rack with folding shelves

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Asbestos Cement Products Association, Fallout Shelter *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995165A (en) * 1973-12-01 1976-11-30 L. & C. Steinmuller Gmbh Method of and device for screening the source of rays dangerous to human health
US4654188A (en) * 1985-01-11 1987-03-31 Westinghouse Electric Corp. Pivotably mounted reactor shroud shield and shielding method
US5929458A (en) * 1996-05-07 1999-07-27 Hitachi, Ltd. Radiation shield
US6051185A (en) * 1996-12-18 2000-04-18 Sterigenics International Apparatus for performing gamma irradiation
WO2004003934A1 (en) * 2002-07-01 2004-01-08 Elekta Ab (Publ) A mobile building unit as well as a building and a method for constructing the building
EP1449986A1 (en) * 2003-02-21 2004-08-25 Albert Claerbout Protective enclosure
US20040163337A1 (en) * 2003-02-21 2004-08-26 Albert Claerbout Protective enclosure
FR2851602A1 (en) * 2003-02-21 2004-08-27 Albert Claerbout Enclosure protecting against the blast from an explosion or force from a high temperature flame
US20080016815A1 (en) * 2006-07-24 2008-01-24 Foster Stanley E Portable nuclear radioactive fallout shelter and preservation of potable water storage system
US7442949B2 (en) * 2006-07-24 2008-10-28 Stanley Earl Foster Portable nuclear radioactive fallout shelter and preservation of potable water storage system
US20080203331A1 (en) * 2007-02-12 2008-08-28 Murphy Brent D Mobile radiation treatment facility
US8621789B2 (en) 2011-07-08 2014-01-07 Michael Francis Trochan Storm shelter and method of use thereof

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