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公开(公告)号：US6442980B2
公开(公告)日：2002-09-03
申请号：US83516801
申请日：2001-04-13
Applicant: CHART INC
Inventor： PRESTON A DUANE , TURNER JON R , SVOBODA CHARLES
CPC classification number: D06F43/007 , D06F43/00 , D06F43/02 , D06F43/08 , D06F43/081 , F17C7/02 , F17C2205/013 , F17C2205/0146 , F17C2205/0326 , F17C2205/035 , F17C2221/013 , F17C2223/0153 , F17C2223/035 , F17C2227/0135 , F17C2227/0304 , F17C2227/0346 , F17C2227/0355 , F17C2227/0393 , F17C2250/032 , F17C2250/0408 , F17C2250/043 , F17C2250/0434 , F17C2250/0439 , F17C2250/0452 , F17C2250/0491 , F17C2250/0631 , F17C2260/032 , F17C2260/038 , F17C2260/044 , F17C2270/0545
Abstract: A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks in communication with a compressor. A sealed cleaning chamber contains the objects to be cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber through cleaning nozzles so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. In an alternative embodiment, a single storage tank is pressurized via a compressor with gas from the cleaning chamber so that liquid solvent from the storage tank travels to the cleaning chamber through nozzles. The objects in the cleaning chamber are agitated by a rotating basket. After a prewash cycle, liquid solvent from the cleaning chamber is directed to a still. The liquid solvent in the still is boiled through a connection with the head space of the cleaning chamber. The still may be positioned within the storage tank and partially surrounded with a shroud for efficient heating of the still with gas from the cleaning chamber. During agitation, liquid solvent from the cleaning chamber may be heated and filtered.
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Patent Agency Ranking
公开(公告)号：TR200201025A2
公开(公告)日：2002-11-21
申请号：TR200201025
申请日：2002-04-15
Applicant: CHART INC
Inventor： PRESTON A DUANE , TURNER JON R , SVOBODA CHARLES
Abstract: A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks (18,20) in communication with a compressor (14). A sealed cleaning chamber (32) contains the objects to be cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber (32) through cleaning nozzles (53) so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. In an alternative embodiment, a single storage tank is pressurized via a compressor with gas from the cleaning chamber so that liquid solvent from the storage tank travels to the cleaning chamber through nozzles. The objects in the cleaning chamber are agitated by a rotating basket. After a prewash cycle, liquid solvent from the cleaning chamber is directed to a still. The liquid solvent in the still is boiled through a connection with the head space of the cleaning chamber. The still may be positioned within the storage tank and partially surrounded with a shroud for efficient heating of the still with gas from the cleaning chamber. During agitation, liquid solvent from the cleaning chamber may be heated and filtered.
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公开(公告)号：ES2265665T3
公开(公告)日：2007-02-16
申请号：ES98938317
申请日：1998-08-05
Applicant: CHART INC
Inventor： DRUBE THOMAS K , DRUBE PAUL A , PRESTON A DUANE
Abstract: Un sistema de transferencia para distribuir líquido criogénico (10) a un dispositivo de utilización (24), comprendiendo dicho sistema: un depósito de almacenamiento a granel (12) que contiene el líquido criogénico (10); un depósito distribuidor (18) en comunicación de fluido con el depósito de almacenamiento a granel (12) y el dispositivo de utilización (24); un depósito de suministro de gas (16); medios (54) para presurizar el líquido criogénico dentro del depósito de suministro de gas (16) de modo que el líquido criogénico dentro del depósito de suministro de gas fluye a través de un vaporizador (64) que está en comunicación de fluido con el depósito de suministro de gas; dicho vaporizador (64) está en comunicación de fluido con el depósito distribuidor (18) de manera que el gas producido de ese modo aumenta la presión del líquido criogénico dentro del depósito distribuidor (18) hasta un nivel requerido por el dispositivo de utilización (24) y en una cantidad necesaria para impulsar el líquido criogénico del interior del depósito distribuidor (18) al depósito de utilización (24); y medios (78) para distribuir líquido criogénico del depósito distribuidor (18) al depósito de utilización (24), caracterizado porque el depósito de suministro de gas (16) está montado formado un circuito en serie entre el depósito de almacenamiento a granel (12) y el depósito distribuidor (18) de modo que el líquido criogénico (10) puede fluir de dicho depósito de almacenamiento a granel (12) a través de dicho depósito de suministro de gas (16) a dicho depósito distribuidor (18); y dicho depósito distribuidor y dicho depósito de suministro de gas (16) están alimentados, por gravedad, con líquido criogénico (10) del depósito de almacenamiento a granel (12).
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公开(公告)号：AT324562T
公开(公告)日：2006-05-15
申请号：AT98938317
申请日：1998-08-05
Applicant: CHART INC
Inventor： DRUBE THOMAS K , DRUBE PAUL A , PRESTON A DUANE
Abstract: A cryogenic liquid transfer system, for servicing a use device, releases stored cryogen from a bulk storage tank to a gas supply tank and a dispenser tank. The liquid cryogen in the gas supply tank is circulated through a circuit that includes a heat exchanger and the gas thus generated is returned to the gas supply tank so as to pressurize it. The pressurized liquid cryogen is released from the gas supply tank so that it flows through a vaporizer. The gas produced by the vaporizer is bubbled through the liquid cryogen in the dispenser tank so as to raise its temperature and pressure to the level required by the use device being serviced. Gas from the vaporizer is then delivered to the space above the liquid cryogen in the dispenser tank to as to create a pressure head that will cause the liquid cryogen to flow to the use device upon release. A venturi is connected to the tubing between the gas supply tank and the dispenser tank and is used to reduce the pressure in the bulk storage tank.
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公开(公告)号：DE60213310D1
公开(公告)日：2006-09-07
申请号：DE60213310
申请日：2002-04-15
Applicant: CHART INC
Inventor： PRESTON A DUANE , TURNER JON R , SVOBODA CHARLES
Abstract: A carbon dioxide dry cleaning system features a pair of liquid carbon dioxide storage tanks (18,20) in communication with a compressor (14). A sealed cleaning chamber (32) contains the objects to be cleaned. By selectively pressurizing the storage tanks with the compressor, liquid carbon dioxide is made to flow to the cleaning chamber (32) through cleaning nozzles (53) so as to provide agitation of the objects being dry cleaned. Liquid carbon dioxide displaced from the cleaning chamber returns to the storage tanks. In an alternative embodiment, a single storage tank is pressurized via a compressor with gas from the cleaning chamber so that liquid solvent from the storage tank travels to the cleaning chamber through nozzles. The objects in the cleaning chamber are agitated by a rotating basket. After a prewash cycle, liquid solvent from the cleaning chamber is directed to a still. The liquid solvent in the still is boiled through a connection with the head space of the cleaning chamber. The still may be positioned within the storage tank and partially surrounded with a shroud for efficient heating of the still with gas from the cleaning chamber. During agitation, liquid solvent from the cleaning chamber may be heated and filtered.
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公开(公告)号：EP1012511A4
公开(公告)日：2004-11-03
申请号：EP98938317
申请日：1998-08-05
Applicant: CHART INC
Inventor： DRUBE THOMAS K , DRUBE PAUL A , PRESTON A DUANE
CPC classification number: F17C7/02 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2225/0161 , F17C2225/033 , F17C2227/0114 , F17C2227/0393 , F17C2250/01 , F17C2250/032 , F17C2260/02 , F17C2265/065 , F17C2270/0168 , F28C3/06
Abstract: A cryogenic liquid transfer system releases stored cryogen from a bulk storage tank (12) to a gas supply tank (16, 26) and a dispenser tank (18, 28). The liquid cryogen (10) in the gas supply tank (16, 26) is circulated through a heat exchanger (54) and the gas generated is returned to the gas supply tank (16, 26) to pressurize it. The pressurized liquid cryogen is released from the gas supply tank (16, 26) so that it flows through a vaporizer (64). The gas produced by the vaporizer is bubbled through the liquid cryogen in the dispenser tank (18, 28) so as to raise its temperature and pressure to the level required by the use device being serviced. Gas from the vaporizer is then delivered to the space above the liquid cryogen in the dispenser tank (18, 28) to create a pressure head to cause the liquid cryogen to flow to the use device. A venturi (40) is used to reduce the pressure in the bulk storage tank.
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