US1779117A - Vacuum-insulated receptacle and protective jacket therefor - Google Patents

Description

. O 21, 1930- c. w. DAVIS Ef AL VACUUM INSULATED RECEPTACLE AND PROTECTIVE JACKET THEREFOR ,Filed Jan. 5, 1929 Gwmd I INVEVNTVORJ, 3y I I,

. A TTb NEY.

' retaining properties are enhanced and wherep i oined to the body 9 by a machlne 0 eration.

Patented Oct. 21, 1930 UNITED STATES PATENT OFFICE CORTLAND W. DAVIS, 01 OAK PARK, AND FRED I. BECKER, OI CHICAGO, ILLINOIS, ABSIGNOBS TO THE MANTLE LAMP COMPANY OF AMERICA, OI -('JHICAGO, ILLINOIS,

A CORPORATION OI ILLINOIS VACUUM-INSULATED. BECEPTAGLE AND PROTECTIVE JACKET THEREFOR Application Med. January 5, 1929. Serial No. 880,494.

The invention relates to vacuum-insulated vitreous receptacles in which a metal protective jacket is employed, an object thereof being to eliminate the usual springs and rubbers which are employed within the metal jacket in ordinary vacuum bottles to insure against shocks.

A further object of the invention is to provide a unitary structure wherein there will be no seepage into the space between the double wall of the glass receptacle and its protecting jacket.

Further objects of the'invention are to protect the frangible glass lip of the contalner with a collar over-lapping a portion of said glass lip, and at the sametime, produce a sanitary pouring lip.

The invention, furthermore, involves details whereby the construction of such a recepta'cle is simplified'and the manufacture thereof is facilitated, whereby the cost of manufacture is reduced, whereby the heatby the protective jacket is strengthened and its appearance is improved.

The invention will be best understood if reference be made to the accompanying drawing in which:

Figure 1, is a view, part1 showing a construction embo ying the invention, and v Figure 2, is a cross-sectional view taken on the line 2-2 of Figure 1.

Referring to the drawing, 1 isa vacuuminsulated glass vessel having an outer wall 2 and an inner wall 3 welded together at their top edges, but elsewhere separated from each other so as to leave a space 4 in which a vacuum may be produced in a well-known manner.

The outer wall 2 has a neck 2, terminating in a pourin lip 2", and the inner wall has a neck 3", said neck 2 being upwardly flared and said neck 3 being internally and suitably shaped at 3" to receive a corkage element C. The neck 2"- is Iprovided with a circum ferential seat 3, w ich is adapted to mate with a part of a protective jacket.

The lower closed ends of the walls 2, 3, are respectively provided with'straight and parin section,

allel portions 5 and 6, the portion 5 terminating in a curved portion 5, below it, and the portion 6 terminating in a curved portion 6", above it. Spacers, such as 7, are disposed between said straight portions 5, 6, and are prevented from moving up or down by said curved portions 5", 6. This construction avoids the necessity of makin the spacers 7 of concavo-convex form, an admits of the use of spacers cut from flat stock. It also prevents such shifting of the spacers as would take place if concavo-convex spacers weredisposed between concave and convex portions of the walls 2, 3. Furthermore, said construction prevents the inner wall 3 from moving longitudinally in one direction within the wall 2 before the union of said-walls has been effected.

Surrounding the vessel 1, is a sheet-metal protective jacket 8 having a cylindrical body 9 and a bottom 10 which, but for the requirements of manufacture, might be an'integral art of said body 9. Said bottom& 10 is Within the jacket 8 is a shock-a sorbing cylinder 11, of corrugated board or other poor conductor of heat which mainly serves as a cushioning means. This cylinder not only spaces. the protective jacket from the vessel 1, but establishes limited contact between these elements and, furthermore, affords spaces within its corru ations for nonconducting staticbodies of an which supplement' heat retention. 1

The jacket 8 is madeofrom a fiat piece of material panelled as at 8 to give it strength and at the same time add to the appearance of the jacket. The panelling also enables the user to get. a better grip on the jacket when the bottle is being handled, and, furthermore, serves to conceal the otherwise unsi htly seam 8;

n the vacuum bottles it is customary to make the jacket from steel, with an upper section of aluminum, brass or similar rustproof metal. The construction of the vacuum bottle herein disclosed is such that it permits the use of a minimum amount of non-corrosive materials, thus cheapening the cost of the protective jacket. This result is attained by extending the jacket 8 somewhat above the cylindrical body of the vessel 1 Also, since the jacket 8 is truly cylindrical it is easier to manufacture than is a jacket having an inturned or conical top.

At the top of the jacket 8 is a collar 12, united to said jacket by a seam 13, screwthreaded at 12, and having at its top an in turned flange 12 and corrugations 12, said inturned flange 12 terminating within the circumferential seat 3 to thereby prevent the vessel 1 from rising in the jacket 8, and said corrugations 12 interlocking with a seal 14 which engages with the flared neck 2 to thereby prevent said vessel from moving downward within said jacket 8. This seal 14 is made from any material which will not be affected by water and may be made to conform, exteriorly and interiorly, to said corrugations 12 and said flared neck 2. The seam 13 is preferably soldered, as at 13*.

A drinking, cup 15, having screw-threads 15, engaging the screw threads 12* of said collar 12, encloses and protects the several parts at the top of the device.

The making of the device is greatly facilitated and the cost of manufacture decreased by the construction thereof, herein described, it being possible to unite the cylindrical wall 9 and the bottom 10 of the protective jacket,

by an expeditious and simple seaming operation without the use of solder at the joint between the two parts; and, also, to assemble and unite the vessel 1 and the collar 12 be fore the protective jacket 8 is joined to said collar. at which time the interior of the collar 12 is open from below to give ready access to the substance constituting the seal 14:.

\Vhen. therefore, the two units respectively including the cylindrical wall 9 and the bottom 10, and the vessel 1 and the collar 12, have been produced. there is no difliculty in telescoping the one into the other, and soldering the then proximate edges of the cylindrical wall 9 and the collar 12.

The seaming operation may be performed by an automatic machine operated by an unskilled laborer at slight cost, and the soldering operation, if performed by hand, is inexpensive since that also may be conducted by an unskilled laborer.

Having thus described our invention, what we claim is:

1. A protected vacuum-insulated receptacle, including a double walled glass vessel having a cylindrical body and terminating at its upper end in a flared neck, a cylindrical protective jacket surrounding said vessel and extending above the cylindrical body thereof, and a collar surmounting said jacket and secured to and sustainingsaid vessel.

2. A protected vacuum-insulated receptacle, including a double-walled glass vessel having a pouring lip and a circumferential seat surrounding said lip, and a multipart jacket having a flange terminating within said seat.

3. A protected vacuum-insulated receptacle, including a double walled glass vessel having an upwardly flared neck, and a circumferential seat, a protective jacket having a corrugated collar terminating in said seat, and a seal disposed between and engaging said neck and said corrugations and constituting the entire support for said vessel.

4. A vacuum insulated receptacle, including spaced glass walls provided with parallel portions each terminating in a curved portion, and spacers disposed between said parallel portions and abutting and prevented from moving longitudinally by said curved portions.

5. A jacket for a heat-insulated glass vessel having panels and ribs therebetween, and a joint substantially coinciding with one of said ribs.

6. A protected vacuum-insulated receptacle, including a double-walled glass container, a collar sealed to the top of said container, and a protective jacket for said container, said jacket having a cylindrical wall and a bottom united to form a unit, and being soldered to the lower edge of said collar.

7. A protected vacuum-insulated receptacle. including a double-walled glass container, a collar sealed to the top of said container, a cushioning element surrounding said container, and aprotective jacket for said container, said jacket having a-cylindrical wall and a bottom united to form aunit, and being unitedvto the lower edge of said collar.

8. A protected vacuum-insulated receptacle, including adouble-walled glass container, a collar sealed to the top of said container, a corrugated cushioning element surrounding said container, and a protective jacket for said container, said jacket having a cylindrical wall and a bottom united to form a unit, and being soldered to the lower edge of said collar.

In testimony whereof we aflix our signatures.

CORTLAND W. DAVIS. FRED F. BECKER.

Images