WO1994023896A1 - Systeme de transport de particules de glace utilise dans un appareil de projection et systeme de fractionnement de la glace - Google Patents
Systeme de transport de particules de glace utilise dans un appareil de projection et systeme de fractionnement de la glace Download PDFInfo
- Publication number
- WO1994023896A1 WO1994023896A1 PCT/US1994/003807 US9403807W WO9423896A1 WO 1994023896 A1 WO1994023896 A1 WO 1994023896A1 US 9403807 W US9403807 W US 9403807W WO 9423896 A1 WO9423896 A1 WO 9423896A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ice
- rollers
- fracturing
- particles
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
- F25C5/046—Ice-crusher machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
Definitions
- This invention relates to an ice blast particle transport system for use in an apparatus for blasting freshly formed ice particles to perform work on the substrate surface.
- Particle blasting has been employed for some time to remove material from surface structures.
- Sand blasting and other types of grit blasting have been used to remove surface finishes from building exteriors, vehicle surfaces, mechanical parts and the like.
- Sand or grit blasting requires expensive recovery systems to reduce pollution and other environmental hazards.
- Water can be used in conjunction with the grit blasting procedure to reduce particle losses and consequent harm to the environment.
- the blasting of ice particles resolves a number of the above problems so that several attempts have been made in providing commercially viable ice blasting equipment. It is appreciated that the blasting of ice particles provides significantly less environmental harm because subsequent to impact the ice particles melt hence assisting in the removal and disposal of removed material. As a result, there is a considerable reduction in dust contributed to the environment. Due to the nature of ice particles, there are several problems associated with blasting the ice particles to achieve sufficient work on the surface to be treated. By their nature, ice particles are not free-flowing. Normally, to provide an accumulation of ice particles during machine shut-down and the like, an inventory of ice particles is accommodated by various mechanical devices interposed between the ice making system and the blast nozzle.
- U.S. Patent 4,703,590 discloses a particle molding apparatus suitable for molding ice particles for blasting purposes. As the ice particles are formed, they are collected in a reservoir at the base of the molding machine. As the blast system is operated, particles are sucked from the reservoir in the molding apparatus and transported to the nozzle for purposes of doing work. However, it has been found that the inventory of ice particles within the reservoir of the ice particle making device still causes ice packing and subsequent system clogging, particularly during intermittent blasting operations.
- the apparatus overcomes the above problems by delivering the ice particles on an as needed basis. This has been achieved by supplying in real time and on demand, the ice particles required at the blast nozzle. The freshly formed ice particles are immediately delivered to the blast nozzle at the mass flow-rate at which they are created. Undesirable accumulation or inventory of the ice particles in the system is avoided. Furthermore, the present invention provides an ice particle transport system for transporting ice particles away from the fracturing system to avoid build up of ice particles in areas beneath the fracturing rollers.
- an ice fracturing unit for supplying fresh ice particles to a delivery hose for an ice blasting apparatus
- the fracturing unit having: i) counter-rotating ice fracturing rollers, ii) means for directing ice sheets or flakes downwardly into a nip region of the ice fracturing rollers; i ⁇ ) means for collecting freshly fractured ice particles as they fall downwardly from beneath the ice fracturing rollers, the collecting means having a converging portion which directs ice particles downwardly into the delivery hose, coupled to an outlet of said delivery hose; iv) a housing for the ice fracturing rollers, the improvement comprising: v) means for developing a swirl flow of cool air beneath the ice fracturing rollers, the swirl flow development means directing air flow immediately beneath the ice fracturing rollers to suspend and transport ice particles in a swirl flow away from the ice fracturing rollers; and vi)
- Figure 1 is a perspective of the ice fracturing unit for supplying fresh ice to a delivery hose for an ice blasting apparatus.
- Figure 2 is a section through the ice fracturing unit of Figure 1.
- Figure 3 is a section through the counter- rotating ice fracturing rollers of the system of Figure 2.
- the ice fracturing unit in accordance with various aspects of this invention may be used with a variety of mobile or stationary ice blasting systems.
- the ice fracturing unit is sufficiently compact for use in a production line so as to treat on a continuous or intermittent basis, adjacent conveyed articles.
- the ice fracturing unit of this invention has the capability to supply on an as needed basis freshly fractured ice particles to avoid any accumulation or inventory of ice particles in the system, it has been found that the ice fracturing unit of this invention is capable of operating on a continuous basis for several days or weeks without the need for service or repair.
- the ice fracturing unit in accordance with the preferred embodiments shown in Figure 1, is best used in fracturing ice flakes and sheets as supplied by an ice sheet or flake forming unit that forms ice on a refrigerated drum prior to removal of the ice from the drum as particles or flakes that are used in the blasting as is hereinafter more fully described.
- an ice sheet or flake forming unit that forms ice on a refrigerated drum prior to removal of the ice from the drum as particles or flakes that are used in the blasting as is hereinafter more fully described.
- the refrigerated drum is rotated about an axis with the lower portion of the drum immersed in a water bath.
- the chilled drum is rotated with its surface approaching a doctor blade.
- a thin film of water is picked up on the surface of the drum. Due to the continuous chilling of the drum by refrigerant, the sheet of water commences to freeze and is essentially frozen by the time the sheet reaches the upper circumferential position of the drum.
- the doctor blade is mounted on an angle with respect to the surface of the drum and lifts the freshly formed sheet of ice from the drum. In so lifting the sheet of ice from the drum, the sheet, in its entire expanse of the width of the drum, is broken up into smaller sheets or flakes.
- the smaller sheets or flakes then fall downwardly through an appropriate chute or the like and are directed at the ice fracturing unit.
- the ice making device only produces ice sheet when ice particles are required at the blast nozzle of the ice blasting system, otherwise through appropriate control devices, the ice maker is stopped so that ice no longer forms on the drum and any ice which is removed from the drum falls immediately into the ice fracturing unit.
- ice blast nozzles may be used which are connected to the ice delivery hose.
- the improvement provided by this invention with respect to the operation of an ice blast system is to provide for the transport of the ice particles away from the ice fracturing unit.
- the ice particles are transported in a manner to minimize or completely avoid build up of ice particles beneath the ice fracturing rollers particularly the very fine ice particles of less than 1 mm in all dimensions which are a byproduct in the ice fracturing process.
- the approach in accordance with this invention in providing for the transport of the ice particles away from the ice fracturing rollers particularly facilitates continuous operation of the system. It is appreciated that over extended periods of operation in terms of days or weeks even a very slow build up of ice particles beneath the ice fracturing unit is to be avoided which is now provided for in accordance with this invention.
- the ice fracturing unit 10 has a chute 12 or other like device for directing ice sheets or flakes downwardly in the direction of arrow 14 toward the nip region 16 of the counter-rotating ice fracturing rollers 18 and 20.
- the ice fracturing rollers are housed within a housing 22 where, in accordance with this embodiment, the chute 12 is integrally formed with the housing 22 and connected in region 24 about the noted seam. This region of interconnection functions as a means for connecting the chute 12 to the housing.
- Beneath the housing 22, and in turn beneath the ice fracturing rollers 18 and 20, is an ice particle collecting device 26 for collecting freshly fractured ice particles and directing them downwardly into an ice particle delivery hose 28.
- the ice particle delivery hose 28 is connected to a blast nozzle.
- High pressure air as supplied through a separate hose (not shown) delivers warm high pressure air to a blast nozzle.
- the blast nozzle normally includes a venturi arrangement where the high pressure high velocity air develops in turn a sub-atmospheric pressure or a relative low pressure in the ice particle delivery hose 28 so that the ice particles are transported along the hose in the direction of arrow 30.
- Some makeup air is normally supplied in the region of the ice maker above the ice fracturing unit so that the relative low pressure developed in the hose 28 which is communicated through to the chute 12 which is part of a closed system, is equalized by the cool make up air introduced to the system.
- a swirl flow of cool air is developed in the ice particle collecting device, as indicated by arrows 32.
- the swirl flow is developed by opposing air stream nozzles 34 and 36 which are located beneath the ice fracturing rollers 18 and 20. The nozzles are positioned in an offset manner whereby the air streams travel circumferentially of the collecting device in the same swirl direction as indicated by arrows 32.
- the swirl flow is directed downwardly of the ice particle collector by virtue of the make-up air traveling downwardly through the collector device 26 and into the hose of reduced pressure.
- the swirl flow in the ice particles as developed by the opposing air nozzles 34 and 36 causes the particles to travel downwardly of the collector 26 in a spiral-like manner.
- the collector device 26 may have a lower portion 38 which converges to a restricted portion 40 so as to be coupled to an ice particle delivery hose 28. It is understood that the collector device may be of various configurations where, depending upon its configuration, the velocity of the air and the orientation of the nozzles 34 and 36 are selected so as to develop the desired extent of the swirl motion to transport the ice particles as they drop from the ice fracturing rollers away from the ice fracturing rollers.
- the ice particles By developing a sufficient swirl motion beneath the rollers, the ice particles, including any finer ice particles, are immediately swept up within the developed swirl flow and not allowed to deposit on the interior surfaces of the collector device, hence, build up of ice particles beneath the fracturing rollers is avoided. This is particularly important with a continuous operation where a build up of ice particles beneath the fracturing rollers could eventually close off passage through the collector device and, hence, block the flow of ice particles through the delivery hose 28. Cooling for the ice fracturing rollers 18 and 20 may be required. This cooling can be accomplished by directing cooling air through nozzle 42 at the nip region 16 of the roller 18 and 20.
- the nozzle 42 is directed downwardly so as to cool the rollers essentially along the entire nip region of the rollers, as indicated by the direction of arrow 44. Additional cooling for the rollers 18 and 20 may also be provided in the housing through hoses 46 and 48 which, in accordance with the preferred embodiment of this invention, develop pressure behind the insulating filling block or material 50 for roller 18 and manages to travel downwardly between the aluminum support 52 for the filler block and the housing 22 through a channel 54.
- Channel 54 is in communication with a channel 56 which is between the base support 58 for the insulation and the housing, further details of which are shown in Figure 2. This flow of air emerges from beneath the rollers 18 and 20 to further assist in the removal of ice particles from beneath the respective ice fracturing roller.
- the delivery chuts 12 directs the ice flakes and sheets in the direction of arrow 14 into the nip region 16 so as to be fractured by the counter-rotating rollers 18 and 20.
- the counter-rotating rollers rotate in the direction of arrows 60 and 62.
- the ice fracturing rollers have opposing teeth as shown in more detail in Figure 3 which intermesh and function to fracture rather than crush the ice sheets into the desired particle size.
- the freshly formed ice particles fall downwardly away from the counter-rotating rollers 18 and 20 in the direction of arrow 64 where in accordance with this particular embodiment of the invention, are first met with laterally flowing air streams in the direction of arrows 66 and 68. Those lateral streams of air are supplied by the hoses 46 and 48.
- the channel 54 between the aluminum support 52 and the side wall 70 of the housing is shown.
- the hose 46 passes through the housing side walls 70 and is secured in the side wall at 72 and sealed thereto so that all air entering through the hose 46 is directed into the channel 54.
- the channel 54 is sealed at its upper end 74 and its back end 75 so that all air travels downwardly of the channel 54 into the lower channel 56 beneath the lower filler block support 58 and the top wall 76 of the collector 26.
- hose 48 leads into channel 78 which is sealed at its upper region 80 and its back end 81.
- the air travels downwardly of channel 78 into lower channel 80 and flows outwardly in the direction of arrow 68.
- the flow of air in directions of arrows 66 and 68 maintain the lower supports 58 and 82 in a cool state.
- the tip portions 84 and 86 of the filler block supports 58 and 82 include cleaning devices which fit within the roller teeth to remove any ice particles which may stick to the rollers to ensure that the rollers are clean to receive fresh ice sheets and flakes in the nip region 16.
- the flow of air emerging from the channels and in the direction of arrows 66 and 68 ensure that ice particles removed from the rollers at regions 88 and 90 are directed towards the mainstream of particles flowing in the direction of arrow 64.
- the mainstream of particles enters the swirl region 92 as developed by the opposing nozzles 34 and 36.
- Air is introduced within the collector 26 at a sufficient pressure and velocity to suspend and transport ice particles in a swirl flow away from the ice fracturing rollers 60 and 63.
- the downward component in the swirl flow of the particles is, in accordance with this embodiment, induced by a low or sub-atmospheric pressure developed within the ice particle delivery hose 28.
- make up air is normally introduced above the ice fracturing rollers 18 and 20 so that it travels downwardly between the ice fracturing rollers and encounters the swirl flow of ice particles.
- the collector 26 has an upper rectangular shaped portion 94 which is defined by spaced apart edges 96 and 98. Edges 96 and 98 extend across the length of the ice fracturing rollers 18 and 20 where their width is at least equal to the spacing between the regions 88 and 90 where the cleaning devices 84 and 86 remove ice particles from the ice fracturing rollers. This upper rectangular region of the collector 26 then merges into a somewhat conical region 38 which converges to a reduced bottom 40. A suitable clamp 100 is used to connect the end 102 of the hose 28 to the reduced neck portion 40 of the collector device 26. It is appreciated that a variety of materials and manufacturing techniques may be employed to form the chute 12, tile housing 22 and the collector 26.
- these elements of the ice fracturing unit are formed of a moldable polyurethane which has a smooth inner surface 104, such as for the converging portion 38.
- the sections 12, 22, 26 and 38 may be integrally molded and formed whereas, as will be discussed with respect to Figure 3, an end wall of the housing 22 is removable to allow servicing and access to the interior of the housing 22.
- the seam in region 24 connects the chute 12 to the housing 22 and seam in the region of 106 connects the top walls of collector device 26 to the housing 22.
- the polyurethane materials are preferred not only by virtue of their forming smooth inner surface for delivery of ice sheets and flakes to the ice fracturing rollers, but as well for transport of the ice particles away from the ice fracturing rollers and also for its property of having a low coefficient of heat transfer to insulate the temperature of the ice particles from the ambient exterior of the ice fracturing unit.
- the spiral flow of the ice particles, as induced beneath the ice fracturing rollers is very effective in removing ice particles from beneath the rollers to ensure that build up of ice particles in the collector and particularly beneath the rollers is kept to an absolute minimum or totally avoided. This is particularly beneficial for a continuous operation.
- the overall system of providing ice particles only as needed avoids any accumulation or inventory of ice in the system.
- transport of the ice particles away from the ice fracturing rollers a very reliable consistently performing ice fracturing unit over extended period of operation in terms of days or weeks, is provided.
- the housing 22 is shown in more detail for the ice fracturing rollers 18 and 20.
- the opposing side walls 70 and 108 of the housing have the nozzles or hoses 46 and 48 extending therethrough to direct air into the respective channels 54 and 78.
- the insulative filler block material at 110 and 112 is supported on the respective supports 52 and 114.
- the insulation 110 and 112 as supported on the respective aluminum supports serves to minimize heat transfer from the ambient through the housing into the respective ice fracturing roller 18 or 20.
- the housing end wall 116 is spaced from aluminum roller end plate 53. End plate 53 has bearings 118 and 120 provided therein through which the respective axle 122 and 124 of the rollers 18 and 20 are mounted.
- the end plate 53 includes sheets of high density polymeric material 113 secured to its face, against which the ends 19 and 21 of the rollers abut.
- the polymer sheets avoids direct wear contact between the rollers and the end support plate.
- Similar material 115 is provided on the opposite end plate 126.
- the filler blocks 110 and 112 may be formed of the same high density polymeric material.
- the end wall 116 being an integral part of the housing 22, its insulating value may be kept to a maximum to reduce the transfer of heat from the ambient to the ice fracturing rollers.
- the opposite end 126 of the housing is removable from the housing by release of the respective bolts 128.
- the axles 130 and 132 of the rollers 18 and 20 extend through bearings 134 and 136 in the end wall plate 126.
- a drive gear 138 is keyed to the motor shaft 140 of drive motor 142.
- Drive gear 138 is in turn meshed with drive gear 144 which is keyed to shaft 130 of roller 18.
- the gears are keyed to the shafts 130 and 132 in a manner to ensure that the opposing ice fracturing rollers 18 and 20 are properly meshed so that at all times during rotation of the motor 142 the meshed synchronized relationship of the ice fracturing rollers is retained.
- the entire end plate with rollers can be removed in the direction of arrows 146. Due to the removable nature of the end plate 126, its insulating value is not as high as the housing wall 116 spaced from the support end plate 53. Hence, cool air is introduced through hoses 46 and 48 and is directed through the channel 54 and 78 in a region close to end plate 126. Channels 54 and 78 act as plenums to direct the cool air through the lower channels 56 and 80 to supply the air beneath the cleaning devices 84 and 86 in the direction of arrows 66 and 68.
- the cooling air as provided in the nip region 16 of the counter-rotating rollers through nozzle 42 is normally provided only when the ice maker is stopped and it is necessary to maintain the rollers in a cool condition for immediate start up.
- that air may be shut off when the ice fracturing rollers cease rotating.
- the air would immediately be reintroduced to the system to commence a swirl flow transport of the particles as soon as the ice fracturing rollers resume rotation.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
Une unité de fractionnement de la glace (10) alimentant des particules de glace fraîchement fractionnées à un tuyau de distribution (28) d'un appareil de projection de glace comprend: i) des rouleaux de fractionnement de la glace à rotation antagoniste (18 et 20); ii) un conduit (12) pour diriger les plaques de glace vers le bas dans une région d'écartement des rouleaux de fractionnement de la glace; iii) un collecteur (26) qui récupère les particules de glace fraîchement fractionnées au moment où elles tombent du dessous des rouleaux de fractionnement, le collecteur (26) ayant une partie convergente qui dirige les particules de glace vers le bas dans le tuyau de distribution (28); iv) un logement (22) destiné au rouleau de fractionnement de la glace (18 et 20). L'amélioration consiste en: v) des tuyères à air (34 et 36) développant un écoulement tourbillonnaire d'air froid sous les rouleaux de fractionnement de la glace afin de maintenir en suspension et de transporter les particules de glace dans un écoulement tourbillonnaire à l'écart des rouleaux de fractionnement; et vi) l'écoulement tourbillonnaire des particules de glace se déplaçant sous forme d'une spirale dans le tuyau de distribution (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU66277/94A AU6627794A (en) | 1993-04-16 | 1994-04-07 | Ice blast particle transport system for ice fracturing system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4864893A | 1993-04-16 | 1993-04-16 | |
| US08/048,648 | 1993-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994023896A1 true WO1994023896A1 (fr) | 1994-10-27 |
Family
ID=21955681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/003807 Ceased WO1994023896A1 (fr) | 1993-04-16 | 1994-04-07 | Systeme de transport de particules de glace utilise dans un appareil de projection et systeme de fractionnement de la glace |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU6627794A (fr) |
| CA (1) | CA2121268A1 (fr) |
| WO (1) | WO1994023896A1 (fr) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636305C1 (de) * | 1996-09-06 | 1998-03-12 | Linde Ag | Verfahren und Vorrichtung zur Entfernung von Beschichtungen oder Belägen von Oberflächen |
| EP1174216A3 (fr) * | 2000-07-17 | 2002-12-11 | Cold Clean S.à.r.l. | Machine de sablage |
| WO2022101316A1 (fr) * | 2020-11-11 | 2022-05-19 | Alfred Kärcher SE & Co. KG | Dispositif et procédé pour fabriquer des pellets de co2 à partir de neige de co2 et appareil de nettoyage |
| US11607774B2 (en) | 2015-10-19 | 2023-03-21 | Cold Jet, Llc | Blast media comminutor |
| US20240109163A1 (en) * | 2019-08-13 | 2024-04-04 | Applied Materials, Inc. | Method for cmp temperature control |
| US12290896B2 (en) | 2019-02-20 | 2025-05-06 | Applied Materials, Inc. | Apparatus and method for CMP temperature control |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5623831A (en) * | 1995-05-10 | 1997-04-29 | Mesher; Terry | Fluidized particle production system and process |
| IT201800009796A1 (it) | 2018-10-25 | 2020-04-25 | Technoalpin Holding - Spa | Terminale di distribuzione per un condotto di trasporto di ghiaccio e/o neve e relativo sistema |
| CN115946050A (zh) * | 2022-12-30 | 2023-04-11 | 南通中远海运船务工程有限公司 | 一种保温承压可控混冰装置及其使用方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3676963A (en) * | 1971-03-08 | 1972-07-18 | Chemotronics International Inc | Method for the removal of unwanted portions of an article |
| US4333612A (en) * | 1979-11-27 | 1982-06-08 | Kyoei Zoki Kabushiki Kaisha | Apparatus for storage of ice |
| US4389820A (en) * | 1980-12-29 | 1983-06-28 | Lockheed Corporation | Blasting machine utilizing sublimable particles |
| US4965968A (en) * | 1985-03-02 | 1990-10-30 | Kue Engineering Limited | Blast cleaning |
| US5025597A (en) * | 1987-06-23 | 1991-06-25 | Taiyo Sanso Co., Ltd. | Processing apparatus for semiconductor wafers |
| US5063015A (en) * | 1989-03-13 | 1991-11-05 | Cold Jet, Inc. | Method for deflashing articles |
-
1994
- 1994-04-07 WO PCT/US1994/003807 patent/WO1994023896A1/fr not_active Ceased
- 1994-04-07 AU AU66277/94A patent/AU6627794A/en not_active Abandoned
- 1994-04-14 CA CA 2121268 patent/CA2121268A1/fr not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3676963A (en) * | 1971-03-08 | 1972-07-18 | Chemotronics International Inc | Method for the removal of unwanted portions of an article |
| US4333612A (en) * | 1979-11-27 | 1982-06-08 | Kyoei Zoki Kabushiki Kaisha | Apparatus for storage of ice |
| US4389820A (en) * | 1980-12-29 | 1983-06-28 | Lockheed Corporation | Blasting machine utilizing sublimable particles |
| US4965968A (en) * | 1985-03-02 | 1990-10-30 | Kue Engineering Limited | Blast cleaning |
| US5025597A (en) * | 1987-06-23 | 1991-06-25 | Taiyo Sanso Co., Ltd. | Processing apparatus for semiconductor wafers |
| US5063015A (en) * | 1989-03-13 | 1991-11-05 | Cold Jet, Inc. | Method for deflashing articles |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636305C1 (de) * | 1996-09-06 | 1998-03-12 | Linde Ag | Verfahren und Vorrichtung zur Entfernung von Beschichtungen oder Belägen von Oberflächen |
| EP1174216A3 (fr) * | 2000-07-17 | 2002-12-11 | Cold Clean S.à.r.l. | Machine de sablage |
| US11607774B2 (en) | 2015-10-19 | 2023-03-21 | Cold Jet, Llc | Blast media comminutor |
| US11766760B2 (en) | 2015-10-19 | 2023-09-26 | Cold Jet, Llc | Method of comminuting particles |
| US12290896B2 (en) | 2019-02-20 | 2025-05-06 | Applied Materials, Inc. | Apparatus and method for CMP temperature control |
| US12318882B2 (en) | 2019-02-20 | 2025-06-03 | Applied Materials, Inc. | Apparatus and method for CMP temperature control |
| US20240109163A1 (en) * | 2019-08-13 | 2024-04-04 | Applied Materials, Inc. | Method for cmp temperature control |
| US12296427B2 (en) | 2019-08-13 | 2025-05-13 | Applied Materials, Inc. | Apparatus and method for CMP temperature control |
| US12434347B2 (en) * | 2019-08-13 | 2025-10-07 | Applied Materials, Inc. | Method for CMP temperature control |
| WO2022101316A1 (fr) * | 2020-11-11 | 2022-05-19 | Alfred Kärcher SE & Co. KG | Dispositif et procédé pour fabriquer des pellets de co2 à partir de neige de co2 et appareil de nettoyage |
| CN116438039A (zh) * | 2020-11-11 | 2023-07-14 | 阿尔弗雷德·卡赫欧洲两合公司 | 用于从co2雪制备co2颗粒的设备和方法以及清洁器具 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2121268A1 (fr) | 1994-10-17 |
| AU6627794A (en) | 1994-11-08 |
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