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| Number | Title | Issue Date |
| 6076537 | Vacuum extraction cleaning system A pulse vacuum extraction solvent cleaning system in which solvent remnants are removed from a cleaning vessel by evacuating the closed cleaning vessel to a predetermined vacuum pressure. At the predetermined vacuum pressure, if the concentration of solve... | 06/20/2000 |
| 6073292 | Fluid based cleaning method and system A method for cleaning or sterilizing objects in a liquid fluid cleaning system comprising a high-pressure storing/working vessel, a cleaning chamber, and a low-pressure supply vessel, the method comprising the steps of loading the cleaning chamber with ob... | 06/13/2000 |
| 6068002 | Cleaning and drying apparatus, wafer processing system and wafer processing method A drying unit is disposed above a cleaning tank containing a cleaning liquid for cleaning semiconductor wafers W. A wafer boat holding semiconductor wafers moves between the cleaning tank and the drying unit. The drying unit has a fixed base surrounding a... | 05/30/2000 |
| 5904737 | Carbon dioxide dry cleaning system 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 being dry cleaned. By selectively pressurizing the storage tanks with the compre... | 05/18/1999 |
| 5822818 | Solvent resupply method for use with a carbon dioxide cleaning system 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 transportati... | 10/20/1998 |
| 5810036 | Continuous-flow ware washing apparatus A continuous-flow warewashing apparatus that includes: a substantially rectangular tub having four side walls and a floor; a pump; a tub outlet channel coupled between the tub and the inlet port of the pump for providing fluid communication between the tu... | 09/22/1998 |
| 5775348 | Apple cleaning system using high pressure washing A cleaning system for use in an apple pre-sizing or packing line including a plurality of high pressure spray nozzles located a short distance above the apples on the line. The spray is maintained at a pressure in the range of 70-300 psi and is directed s... | 07/07/1998 |
| 5775347 | Continuous-flow ware washing apparatus A continuous-flow pot and pan washing system comprising a frame; a substantially rectangular tub mounted on the frame, where the side walls of the tub are shorter in length than the back and front walls of the tub; a pump mounted to the frame; a tub outle... | 07/07/1998 |
| 5769912 | System and method of vapor recovery in industrial washing equipment A system and method for recovering vapors in industrial washing equipment, wherein a solvent is used to wash various articles within a wash area of the equipment. The system includes a hood supported above the wash area, a motor driven fan mounted within ... | 06/23/1998 |
| 5732724 | Sink mounted water agitation Household and institutional sinks are commonly used in cleaning regimens in which articles are contacted with aqueous cleaning media under conditions of agitation. Such agitation can be provided by directing the aqueous medium contained within the sink to... | 03/31/1998 |
| 5732646 | Container with recirculation system for cleaning boat hulls on land A boat hull cleaning system, particularly for sail and motor yachts, prevents the contamination of sewers and open waters by recirculating the cleaning water within the system without discharging it therefrom. The system includes a trailerable container, ... | 03/31/1998 |
| 5701922 | Water-based flushing for paints and other coatings An apparatus, method and purge concentrate are capable of purging water-based and non-water-based paints and other coatings from automated and manual equipment using non-VOC containing aqueous purge solutions. Purge solutions of the invention contain wate... | 12/30/1997 |
| 5682913 | Vapor rinse-vapor dry processing tool A cleaning apparatus for cleaning chemically processed articles between chemical processing steps. The cleaning apparatus includes a sealable pressurization vessel. After a chemical process step, an article, such as a semiconductor wafer is placed in the ... | 11/04/1997 |
| 5673715 | Washing objects and recovering contaminants with optimized pump control An apparatus for washing and recovering a contaminant from an object. A washing agent flows over the object, and the washing agent and contaminant are received in a basin. A slurry of the washing agent and contaminant are circulated through at least one s... | 10/07/1997 |
| 5671762 | Decontamination system for particulate matter A decontamination system for particulate matter is provided. The system has a fluid treatment chamber within which three screw-type augers operate to mix hydrocarbon laden soil with treating fluid for removing the hydrocarbon therefrom. The treating fluid... | 09/30/1997 |
| 5671664 | Combination blender and food washing apparatus A food processing apparatus for washing, aeration drying, and blending food product. The apparatus comprises a food product container having a mating lid, a mesh basket insert, and a network of tubing having a plurality of spray nozzle apertures for produ... | 09/30/1997 |
| 5662269 | Pressure washer with heat exchanger A high pressure hot water cleaning system which includes a source of water flowing to a pressure valve to allow the system to come online, providing a tank for receiving the water, the tank having an inner portion, and an outer jacket portion, a water hea... | 09/02/1997 |
| 5660194 | Washing system for pre-wash tanks A wash water system for retrofitting a pre-wash tank or sink includes a plurality of spray nozzles which extend along an inner surface of a back wall of a pre-wash sink wherein the spray nozzles are in flow communication with a discharge side of a water c... | 08/26/1997 |
| 5649557 | Parts washing apparatus A parts washer unit including a cleaning fluid storage receptacle which can be easily interchanged or exchanged with a like receptacle by the user of the unit. The unit includes a sink tiltably mounted to the top of a support frame that defines a space ac... | 07/22/1997 |
| 5636648 | Mobile rotator jet sewer cleaner A mobile rotator jet sewer cleaner vehicle for cleaning a sewer line by fluid pressure, the vehicle having a fluid supply for delivering the fluid under pressure to a hose wound on a reel assembly which can be selectively wound or unwound in a vertical di... | 06/10/1997 |
| 5607514 | Cleaning apparatus The cleaning apparatus of the present invention is composed of a cleaning chamber 1 of vacuum-tight structure in which a work W to be cleaned is contained, an organic solvent vapor generating tank 4 communicated with the cleaning chamber 1 via piping, and... | 03/04/1997 |
| 5538025 | Solvent cleaning system A improved solvent cleaning method and system which is truly a closed system in which the object to be cleaned is placed in a chamber and subjected to a negative gauge pressure to remove air and other non-condensible gases after which a solvent is introdu... | 07/23/1996 |
| 5529080 | Parts washer A parts washer is provided having a cleaning fluid reservoir and a first mechanism provided with structure for performing a first parts washing function utilizing fluid in the cleaning fluid reservoir with the first parts washing function dissipating the ... | 06/25/1996 |
| 5524653 | Parts washer NPSH reducing system A parts washer is provided having a reservoir containing a supply of fluid and a first mechanism for pressurizing fluid from the supply and delivering the pressurized fluid to against a part to be washed with the first mechanism including an inlet for flu... | 06/11/1996 |
| 5518014 | Portable countertop dishwasher The portable countertop dishwasher of the invention employs a housing, such that the pump and fluid handling assembly of the structure is positioned within the dishwasher in a compact manner between the dishwasher floor and bottom wall, with a drying asse... | 05/21/1996 |
| 5501241 | Vegetable aerating device A device for drying food products such as vegetables by aeration. The device includes a container having a domed cover and housing a network of tubing having a plurality of apertures through which compressed air is discharged for drying food products supp... | 03/26/1996 |
| 5494063 | Ultrasonic degreasing apparatus An ultrasonic degreasing apparatus includes a cleaning section, a rinsing section, a hot water cleaning section, and a drying section. The cleaning section has an ultrasonic oscillator for oscillating ultrasonic waves in distilled water and a heater for h... | 02/27/1996 |
| 5492137 | Modular parts washing system A system for washing parts utilizing a circulated, heated liquid includes a master unit and at least one auxiliary unit. The master unit has a tank for heating the washing liquid, and has a pump for circulating the liquid through the chamber of the enclos... | 02/20/1996 |
| 5485858 | Method of and apparatus for cleaning objects of plastics processing machines A method of and apparatus for removing plastic residues from objects of plastics processing machines includes a container with a treatment chamber filled with a heat transfer fluid and receiving an object such as extrusion heads or blow heads. A considera... | 01/23/1996 |
| 5469876 | Cleaning method and system A closed circuit solvent cleaning method and system in which the object to be cleaned is placed in a chamber and subjected to a negative gauge pressure to remove air and other non-condensible gases, after which a solvent is introduced to the evacuated cha... | 11/28/1995 |
| 5415193 | Pressure controlled cleaning system A cleaning system which includes a tank that contains a cleaning fluid. The cleaning fluid is typically in either a liquid, vapor or two-phase state, and is capable of removing grease and other foreign material from an object such as a circuit board. The ... | 05/16/1995 |
| 5388601 | Spray gun washing apparatus An apparatus for washing paint spray guns and associated equipment with a liquid solvent for the purpose of cleaning and removing paint therefrom after use in painting operations. The apparatus includes a cleaning chamber having solvent dispersing nozzles... | 02/14/1995 |
| 5377705 | Precision cleaning system An improved precision cleaning method includes introducing a solvent to a cleaning vessel, placing a workpiece in the cleaning vessel and contacting the workpiece with the solvent during a residence period. The cleaning vessel is then pressurized to a tar... | 01/03/1995 |
| 5372153 | Pallet cleaner A pallet cleaner especially suitable for use in cleaning plastic pallets. The cleaner includes a vertically oriented horizontally extending chamber having a vertically oriented entry opening at one end of the chamber and a vertically oriented exit opening... | 12/13/1994 |
| 5361787 | Cleaning apparatus The present invention relates to a cleaning apparatus comprising a plurality of processing tanks containing cleaning liquids, a conveyor mechanism for conveying an object to be cleaned and immersing the object to be cleaned into the processing tanks, a di... | 11/08/1994 |
| 5357992 | Heat cycle type dishwasher A heat cycle type dishwasher having a housing body for the preformance of washing and cleaning processes therein, and water supplied from the main water reservoir is heated by the burner cap and distributed to the washing tub and the cleaning tub. For was... | 10/25/1994 |
| 5355900 | Dishwasher with drying cycle A dishwasher includes a chamber containing the dishes, a heater for heating the air in the chamber, a water inlet provided on the upper side of the chamber, a drain pump for draining the water from the chamber, an air circulation passage through which the... | 10/18/1994 |
| 5349974 | General parts washer An apparatus for washing automotive, aviation, marine and general parts with a volatile solvent during maintenance, repair and rebuilding operations. The apparatus includes a wash basin with a drain to facilitate return of the solvent to a holding tank ha... | 09/27/1994 |
| 5341827 | Drying duct of dishwasher A flexible air duct is connected to a dishwashing unit for conducting hot moist air therefrom. Opposite ends of the duct communicate with the dishwashing unit for conducting condensed water back thereto, while hot air is discharged through an air outlet d... | 08/30/1994 |
| 5339844 | Low cost equipment for cleaning using liquefiable gases Precision cleaning of parts is performed with liquefiable gases, such as CO2, without the use of a complex and costly processor system. Rather, simplified and reliable performance for small scale and "low end" cleaning applications is accomplis... | 08/23/1994 |
