公开(公告)号：US06264753B1

公开(公告)日：2001-07-24

申请号：US09611454

申请日：2000-07-07

Applicant: Sidney C. Chao ,  Edna M. Purer ,  Nelson W. Sorbo

Inventor： Sidney C. Chao ,  Edna M. Purer ,  Nelson W. Sorbo

IPC: B08B502

CPC classification number: B08B3/12 ,  B01F3/0819 ,  B08B7/0021 ,  C23G5/00 ,  D06B13/00 ,  D06F43/00 ,  Y10S134/902

Abstract: A cleaning system and method utilizing sonic whistle and other agitation methods to enhance the soil removal and mass transport capacity of the liquid carbon dioxide at low process temperatures. Agitation devices disposed in or couple to a cleaning chamber, and cause the liquid carbon dioxide to ultrasonically emulsify and disperse non-miscible liquids or insoluble solids, such as remove low solubility oils and greases. Cleaning is accomplished at temperatures between −68° F. and 32° F., and the temperature of the liquid carbon dioxide is typically below 32° F.

Abstract translation: 一种使用声哨和其他搅拌方法的清洁系统和方法，可以在较低的工艺温度下提高液体二氧化碳的去污和质量传输能力。 设置在清洁室中或与清洁室相连的搅拌装置，并使液体二氧化碳超声乳化和分散不混溶的液体或不溶性固体，例如除去低溶解度油和油脂。 清洁在-68°F至32°F之间的温度下完成，液态二氧化碳的温度通常低于32°F。

公开(公告)号：US6117190A

公开(公告)日：2000-09-12

申请号：US372965

申请日：1999-08-12

Applicant: Sidney C. Chao ,  Nelson W. Sorbo ,  Edna M. Purer

Inventor： Sidney C. Chao ,  Nelson W. Sorbo ,  Edna M. Purer

IPC: B08B5/02 ,  D06B19/00 ,  D06F35/00 ,  D06F43/00 ,  D06G1/00 ,  D06L1/00 ,  D06B13/00

CPC classification number: D06F35/003 ,  D06F43/00 ,  D06G1/00 ,  D06G1/005

Abstract: A piece of soiled fabric is cleaned by contacting it with a jet of an ionized soil-dislodging gas to dislodge the soil therefrom. The ionized gas and the use of an oppositely charged electrostatic filter aid in preventing redeposition of the soil onto the fabric. The fabric may be agitated while it is contacted with the gas jet. A portion of the piece of fabric may be treated with an electrostatic spotting compound that enhances the effect of the ionized gas and may also enhance the removal of the soil. An apparatus for accomplishing the cleaning includes a container having an interior in which the fabric is received, a gas jet nozzle directed into the interior of the container, a source of a pressurized gas communicating with an inlet of the gas jet nozzle, a gas jet manifold extending from the source to the gas jet nozzle, and a gas ionizer disposed to ionize the pressurized gas passing through the gas jet nozzle.

Abstract translation: 通过使一片污染的织物与离子化的土壤 - 移出气体的射流接触来清除污垢，以从其中移除土壤。 电离气体和使用相反电荷的静电过滤器有助于防止土壤再沉积到织物上。 织物可以在与气体射流接触的同时被搅动。 织物片的一部分可以用增强电离气体效果的静电点样化合物处理，并且还可以增强土壤的去除。 用于完成清洁的装置包括：具有内部的容器，容纳织物的气体喷嘴，引导到容器内部的气体喷嘴，与气体喷嘴的入口连通的加压气体源，气体射流 从气源延伸到气体喷射喷嘴的歧管;以及气体离子发生器，设置成离子化通过气体喷嘴的加压气体。

公开(公告)号：US06569210B1

公开(公告)日：2003-05-27

申请号：US09353511

申请日：1999-07-14

Applicant: Sidney C. Chao ,  Edna M. Purer ,  Nelson W. Sorbo

Inventor： Sidney C. Chao ,  Edna M. Purer ,  Nelson W. Sorbo

IPC: D06B1300

CPC classification number: D06G1/00 ,  C11D11/0017 ,  D06F35/00

Abstract: Fabrics are cleaned by treating at least a portion of the piece of fabric with a particulating chemical, and agitated by a gas jet of a particle-dislodging gas to dislodge the particulated soil. The particulating chemical loosens embedded non-particulate soil and converts it to a particulate form, which is then separated from the fabric by the particle-dislodging gas.

Abstract translation: 通过用微粒化学品处理该织物片的至少一部分来清洁织物，并通过颗粒移除气体的气体射流搅动以移除该微粒土壤。 颗粒化学物质松开嵌入的非颗粒土壤并将其转化为颗粒形式，然后通过颗粒移除气体与织物分离。

公开(公告)号：US5996155A

公开(公告)日：1999-12-07

申请号：US122390

申请日：1998-07-24

Applicant: Sidney C. Chao ,  Robert W. Beach ,  Nelson W. Sorbo ,  Edna M. Purer

Inventor： Sidney C. Chao ,  Robert W. Beach ,  Nelson W. Sorbo ,  Edna M. Purer

IPC: A61L2/10 ,  A61L2/22 ,  D06F43/00

CPC classification number: A61L2/10

Abstract: A process is provided for cleaning, disinfecting, and sterilizing substrates comprising the steps of: (a) placing the contaminated substrate in a cleaning vessel; (b) contacting the contaminated substrate with dense phase carbon dioxide in liquid form; (c) subjecting the substrate and the dense phase carbon dioxide to ultraviolet radiation having a wavelength within the range of about 180 to 300 nm for a duration and intensity sufficient to produce a photochemical reaction capable of destroying the DNA of microorganisms on the substrate; (d) substantially simultaneously subjecting at least the dense phase carbon dioxide to agitation; and (e) removing the dense phase carbon dioxide from the cleaning vessel and thereby transporting the contaminants from the substrate such that the substrate is cleaned and, in the case of contaminated garments, disinfected or, in the case of medical and dental instrumentation, sterilized. Substantially simultaneously with the UV exposure and agitation, the substrates are also subjected to an oxidizing sterilant, such as H.sub.2 O.sub.2.

Abstract translation: 提供了用于清洗，消毒和消毒基材的方法，包括以下步骤：（a）将污染的基材放置在清洁容器中; （b）将受污染的基质与液体形式的致密二氧化碳接触; （c）使基底和致密二氧化碳经受波长在约180至300nm范围内的紫外线辐射，持续时间和强度足以产生能够破坏基底上的微生物DNA的光化学反应; （d）基本上同时使至少所述致密二氧化碳进行搅拌; 和（e）从清洁容器中除去密相二氧化碳，从而从基材输送污染物，使得清洁基材，并且在污染的衣服的情况下进行消毒，或者在医疗和牙科设备的情况下，将其消毒 。 基本上与紫外线曝光和搅拌同时，底物也经受氧化灭菌剂，如H 2 O 2。

公开(公告)号：US5925192A

公开(公告)日：1999-07-20

申请号：US654045

申请日：1996-05-28

Applicant: Edna M. Purer ,  Angela Y. Wilkerson ,  Carl W. Townsend ,  Sidney C. Chao

Inventor： Edna M. Purer ,  Angela Y. Wilkerson ,  Carl W. Townsend ,  Sidney C. Chao

IPC: D06F17/12 ,  D06F43/00 ,  D06G1/00 ,  D06B1/02

CPC classification number: D06F43/00 ,  D06G1/00

Abstract: Substantial amounts of particulate soils in garments can be removed by agitation in gas-jet in a solvent-free, low-pressure environment. The ability of the present gas-jet agitation system to remove particulate soils from garments and fabrics rivals that of conventional dry-cleaning processes which agitate the garments and fabrics while immersed in solvent. Thus, a dry-cleaning operation may consist of a solvent-immersion step for removing soluble soils and a gas-jet agitation step to remove particulates. Considerable savings in equipment and operating costs may be realized in the practice of the invention, since solvent flow rates need not be boosted to provide necessary agitation for particulate soil removal. The savings achievable by employing gas-jet agitation are even more pronounced in dense phase gas dry cleaning systems, which require pressurized environments to maintain a liquified solvent. Advantageously, the apparatus employed in the practice of the invention has no moving parts and is relatively inexpensive to fabricate and maintain. Further, the gas used as a means of agitation may be any commonly-available inexpensive gas, such as carbon dioxide, nitrogen, or air, so that the process is environmentally-friendly.

Abstract translation: 通过在无溶剂，低压环境中的气体喷射中搅拌可以除去大量的衣物中的颗粒污垢。 本发明的气体喷射搅拌系统从衣服和织物中去除颗粒污垢的能力与传统的干洗方法相反，这些干洗方法在浸入溶剂中时搅拌衣物和织物。 因此，干洗操作可以由用于除去可溶性污垢的溶剂浸渍步骤和气体喷射搅拌步骤组成以除去微粒。 在本发明的实践中可以实现在设备和操作成本方面的大量节省，因为不需要增加溶剂流速以提供颗粒污垢去除所需的搅拌。 通过采用气体喷射搅拌可实现的节省在密相气体干洗系统中更为显着，这些系统需要加压环境来维持液化溶剂。 有利地，在本发明的实践中采用的装置没有移动部件，并且制造和维护相对便宜。 此外，用作搅拌手段的气体可以是任何常用的廉价气体，例如二氧化碳，氮气或空气，因此该方法是环境友好的。

公开(公告)号：US5822818A

公开(公告)日：1998-10-20

申请号：US837961

申请日：1997-04-15

Applicant: Sidney C. Chao ,  Edna M. Purer

Inventor： Sidney C. Chao ,  Edna M. Purer

IPC: D06F43/08 ,  B08B7/00 ,  D06F43/00

CPC classification number: B08B7/0021 ,  D06F43/00

Abstract: A method of replenishing liquid carbon dioxide solvent in a liquid carbon dioxide dry cleaning system or other dense phase carbon dioxide cleaning system. The method uses dry-ice or solid carbon dioxide, as a replenishing stock, thus reducing transportation, storage and handling costs. The method disposes solid carbon dioxide blocks in a cleaning chamber after a cleaning cycle. Liquid carbon dioxide solvent is boiled and is used to melt the solid carbon dioxide blocks. Liquid carbon dioxide solvent produced by melting the solid carbon dioxide blocks is pumped from the cleaning chamber into a storage tank to replenish the liquid carbon dioxide solvent.

Abstract translation: 在液体二氧化碳干洗系统或其他密相二氧化碳清洗系统中补充液态二氧化碳溶剂的方法。 该方法使用干冰或固体二氧化碳作为补充原料，从而降低运输，储存和处理成本。 该方法在清洁循环之后将固体二氧化碳块置于清洁室中。 将液体二氧化碳溶剂煮沸并用于熔化固体二氧化碳块。 通过熔化固体二氧化碳块产生的液体二氧化碳溶剂从清洗室泵送到储罐中以补充液体二氧化碳溶剂。

公开(公告)号：US5784905A

公开(公告)日：1998-07-28

申请号：US753853

申请日：1996-12-03

Applicant: Carl W. Townsend ,  Sidney C. Chao ,  Edna M. Purer

Inventor： Carl W. Townsend ,  Sidney C. Chao ,  Edna M. Purer

IPC: D06L1/18 ,  D06F43/00 ,  D06F43/02

CPC classification number: D06F43/00

Abstract: An improved liquid carbon dioxide dry cleaning system containing an improved dry cleaning fluid. The dry cleaning fluid contains an antistatic agent for dissipating static charge on members or garments generated by friction during cleaning thereof. The concentration of the antistatic agent is typically less than 1 percent. Static charge present on the members or garments that are cleaned is transferred through the dry cleaning fluid to ground. This transfer of charge minimizes static charge buildup on the members or garments and suspended soil redeposition onto the members or garments. An odorizing agent or fragrance, and/or a deodorizing agent may be added to the cleaning fluid.

Abstract translation: 改进的液体二氧化碳干洗系统，含有改进的干洗液。 干洗液含有抗静电剂，用于消除在清洁过程中摩擦产生的构件或衣服上的静电荷。 抗静电剂的浓度通常小于1％。 存在于清洁的构件或衣服上的静电荷通过干洗液转移到地面。 这种电荷转移可最大限度地减少成员或服装上的静电积累，并将悬浮的土壤重新沉积到构件或服装上。 可以向清洗液中加入加臭剂或香料，和/或除臭剂。

公开(公告)号：US5651276A

公开(公告)日：1997-07-29

申请号：US592274

申请日：1996-01-26

Applicant: Edna M. Purer ,  Angela Y. Wilkerson ,  Carl W. Townsend ,  Sidney C. Chao

Inventor： Edna M. Purer ,  Angela Y. Wilkerson ,  Carl W. Townsend ,  Sidney C. Chao

IPC: D06F17/12 ,  D06F43/00 ,  D06G1/00 ,  D06B1/02

CPC classification number: D06F43/00 ,  D06G1/00

Abstract: Substantial amounts of particulate soils in garments can be removed by agitation in gas-jet in a solvent-free, low-pressure environment. The ability of the present gas-jet agitation system to remove particulate soils from garments and fabrics rivals that of conventional dry-cleaning processes which agitate the garments and fabrics while immersed in solvent. Thus, a dry-cleaning operation may consist of a solvent-immersion step for removing soluble soils and a gas-jet agitation step to remove particulates. Considerable savings in equipment and operating costs may be realized in the practice of the invention, since solvent flow rates need not be boosted to provide necessary agitation for particulate soil removal. The savings achievable by employing gas-jet agitation are even more pronounced in dense phase gas dry cleaning systems, which require pressurized environments to maintain a liquified solvent. Advantageously, the apparatus employed in the practice of the invention has no moving parts and is relatively inexpensive to fabricate and maintain. Further, the gas used as a means of agitation may be any commonly-available inexpensive gas, such as carbon dioxide, nitrogen, or air, so that the process is environmentally-friendly.

Abstract translation: 通过在无溶剂，低压环境中的气体喷射中搅拌可以除去大量的衣物中的颗粒污垢。 本发明的气体喷射搅拌系统从衣服和织物中去除颗粒污垢的能力与传统的干洗方法相反，这些干洗方法在浸入溶剂中时搅拌衣物和织物。 因此，干洗操作可以由用于除去可溶性污垢的溶剂浸渍步骤和气体喷射搅拌步骤组成以除去微粒。 在本发明的实践中可以实现在设备和操作成本方面的大量节省，因为不需要增加溶剂流速以提供颗粒污垢去除所需的搅拌。 通过采用气体喷射搅拌可实现的节省在密相气体干洗系统中更为显着，这些系统需要加压环境来维持液化溶剂。 有利地，在本发明的实践中采用的装置没有移动部件，并且制造和维护相对便宜。 此外，用作搅拌手段的气体可以是任何常用的廉价气体，例如二氧化碳，氮气或空气，因此该方法是环境友好的。

公开(公告)号：US5467492A

公开(公告)日：1995-11-21

申请号：US236776

申请日：1994-04-29

Applicant: Sidney C. Chao ,  Thomas B. Stanford ,  Edna M. Purer ,  Angela Y. Wilkerson

Inventor： Sidney C. Chao ,  Thomas B. Stanford ,  Edna M. Purer ,  Angela Y. Wilkerson

IPC: C01B32/50 ,  D06F43/00 ,  D06B15/09

CPC classification number: D06F43/007

Abstract: Liquid carbon dioxide, in combination with agitation and, optionally, with process enhancers, such as surfactants, and solvents, such as water, is used to remove contaminants from garments or fabrics. Both apparatus and process are disclosed. Carbon dioxide-cleaned garments are rendered free of odor, require no drying, and the cost per unit solvent (by weight) is a fraction of that of conventional solvents.

Abstract translation: 液体二氧化碳与搅拌和任选的加工增效剂（如表面活性剂）和溶剂（如水）的混合物用于从衣服或织物中除去污染物。 公开了装置和方法。 二氧化碳清洁的衣服没有气味，不需要干燥，每单位溶剂（重量比）的成本是常规溶剂的一小部分。

公开(公告)号：US5316591A

公开(公告)日：1994-05-31

申请号：US927443

申请日：1992-08-10

Applicant: Sidney C. Chao ,  Edna M. Purer ,  Thomas B. Stanford ,  Carl W. Townsend

Inventor： Sidney C. Chao ,  Edna M. Purer ,  Thomas B. Stanford ,  Carl W. Townsend

IPC: B01D11/00 ,  B08B3/12 ,  B08B7/00 ,  D06F19/00 ,  D06F43/00 ,  D06F43/08 ,  H05K3/26 ,  C02F1/46

CPC classification number: D06F19/00 ,  B08B3/12 ,  B08B7/0021 ,  D06F43/007 ,  D06F43/08 ,  H05K3/26

Abstract: Undesired material is removed from a chosen substrate by a process comprising the steps of (a) placing the substrate containing the undesired material in a cleaning chamber provided with cavitation-producing means; (b) introducing a liquefied gas, such as liquid carbon dioxide, into the cleaning chamber and contacting the substrate containing the undesired material with the liquid carbon dioxide at a temperature below its critical temperature; and (c) exposing the liquid carbon dioxide to the cavitation-producing means for a period of time sufficient to remove the undesired material from the substrate. The substrate containing the undesired material may optionally be contacted with carbon dioxide in the dense phase prior to and/or after the cavitation treatment to aid in removal of the undesired material. Further, spent liquid carbon dioxide may be treated to regenerate fresh liquid carbon dioxide which is recycled to the cleaning chamber. Other gases besides carbon dioxide which may be used include nitrous oxide, sulfur hexafluoride, and xenon.

Abstract translation: 不期望的材料通过包括以下步骤的方法从所选择的衬底中移除：（a）将含有不需要的材料的衬底放置在设置有空化产生装置的清洁室中; （b）将液化二氧化碳等液化气体引入清洗室，并将含有不需要的材料的基材与液体二氧化碳在低于其临界温度的温度下接触; 和（c）将液体二氧化碳暴露于产生气蚀的装置一段足以从衬底去除不想要的材料的时间。 在空化处理之前和/或之后，含有不想要的材料的基材可以任选地与致密相中的二氧化碳接触以帮助去除不需要的材料。 此外，废液二氧化碳可以被处理以再生再循环到清洁室的新鲜液体二氧化碳。 除二氧化碳之外的其他气体可以使用包括一氧化二氮，六氟化硫和氙。