With Movable Means To Cause Fluid Motion (e.g., Pumps, Followers) Patents (Class 134/169R)
  • Patent number: 6148832
    Abstract: An apparatus for in-situ cleaning of polysilicon-coated quartz furnaces are presented. Traditionally, disassembling and reassembling the furnace is required to clean the quartz. This procedure requires approximately four days of down time which can be very costly for a company. In addition, cleaning the quartz requires large baths filled with a cleaning agent. These baths occupy a large amount of laboratory space and require a large amount of the cleaning agent. Cleaning the furnace in-situ eliminates the very time consuming procedure of assembling and disassembling the furnace and at the same time requires less laboratory space and less amount of cleaning agent. The polysilicon remover may be either a mixture of hydrofluoric and nitric acid or TMAH. TMAH is preferred because it less hazardous than hydrofluoric acid and compatible with more materials. The cleaning agent may be introduced into the furnace either from the built-in injectors or from additionally installed injectors.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: November 21, 2000
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Mark C. Gilmer, Mark I. Gardner, Robert Paiz
  • Patent number: 6149731
    Abstract: A valve cleaning apparatus and method provide for cleaning of heat resistant, scratch resistant coated valves using deionized water and at least one chemical mixture. The cleaning method includes sampling and analysis of the chemical mixture for the presence of metal impurities to within 0.5 to 1.5 ppb. Valves cleaned using this method and apparatus can then be transferred for use in semiconductor device fabrication equipment without the danger of metal impurities from the valves entering and damaging the fabrication equipment and the semiconductor devices being fabricated. The apparatus uses a single pumping device and a single return line, which are provided with selection devices to alternatively supply to or return from the valves either the deionized water or the chemical mixture. A plurality of same-sized or different-sized valves can be cleaned simultaneously.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: November 21, 2000
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Yong-kyun Ko
  • Patent number: 6136362
    Abstract: A system for continuous pasteurizing of liquid foods is provided which includes the ability to clean the pasteurizing system in place without the need for manual connection and disconnection of piping. The system includes a supply of liquid food product, a source of water, a heat exchanger section for heating the liquid food product, a balance tank for maintaining desired flow to the heat exchanger during fluctuations in demand, and at least one mixproof valve connected to the water source and liquid food supply for delivering one or the other, without risk of intermixing, upstream of the balance tank. The system also discloses the use of a mixproof valve for delivering clean in place solution to the balance tank while preventing the flow of liquid food into the clean in place solution source.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: October 24, 2000
    Assignee: Alfa Laval Flow Inc.
    Inventor: Roger J. Ashton
  • Patent number: 6125871
    Abstract: A chemical fluid valve transfer (e.g., load/unload) assembly is formed from a male valve assembly and a female valve assembly. The male valve assembly is fitted with a male connector which houses a chamber that is connected to a flush inlet line, and a flush outlet line, and a chemical transport line. The female valve assembly is fitted with a female connector which mates with the male valve assembly male connector for interconnecting the male valve and female valve assemblies, and fitted with a chemical transport line. Another aspect of the present invention is a method for transferring a chemical fluid between a tanker fitted with a female coupler and a fill/unload station fitted with a male coupler and hose assembly. This method involves the connecting of the tanker hose and the fill station hose with the valve assembly described above.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: October 3, 2000
    Assignee: Ashland, Inc.
    Inventors: Gilbert J. Drab, Christopher M. Sweeney, Akimoto Ochi
  • Patent number: 6125865
    Abstract: A particulate removal system has for its purpose to remove settled material from vessels and tanks such as those common to the petroleum industry. system comprises means of suspending settled particulate material and evacuating the material in such a manner so as not to disturb overlying liquid layers.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: October 3, 2000
    Assignee: Canadian Environmental Equipment & Engineering Technologies, Inc.
    Inventors: Diana L. Bacon Cochrane, Patrick J. Cochrane, Wade R. Bozak
  • Patent number: 6090216
    Abstract: A cleaning device for cleaning a slit-like nozzle having an opening of a predetermined breadth for discharging liquid paint, with uniformity and with a small amount of cleaning liquid, wherein under a condition that a nozzle N is mounted on receiver plates 4, 4, a substantially air-tight space is formed, and a gas supply conduit is opened at one end of a cleaning portion 2 in the direction of the breadth of the nozzle, and an exhaust conduit 7 is opened at the other end thereof, being disposed in a vicinity of the gas supply conduit, so as to supply the cleaning liquid into the air-tight space. Then, since the air inside of the air-tight space is extracted from the exhaust conduit 7, the gas supplied from the one end flows towards the exhaust conduit 7 at the other end. The cleaning liquid contacts with the surface of the nozzle so as to dissolve and wash away any liquid paint adhering thereon.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: July 18, 2000
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Kazunobu Yamaguchi, Junji Kutsuzawa, Shigemi Fujiyama, Hiroyoshi Sago
  • Patent number: 6090213
    Abstract: An automated cleaning system for parts is disclosed. The parts to be cleaned are elongated tubes closed on one end which are mounted upside down on nozzles on a fixture. The fixture is placed in a wash tank where cleaning fluid is forced through the nozzles and into the insides of the parts. Ultrasonic techniques are also employed to assist in the cleaning. The fixture is moved to the next tank where rinse fluid is forced through nozzles. Again, ultrasonic techniques are used in the rinse tank. The fixture is placed in the drying tank where heated air is circulated into the tank while a vacuum is applied to the nozzles to draw out the heated air through the nozzles. Humidity from ambient air is isolated by virtue of the heated inlet air to the drying tank and an operable lid on the dry tank. Numerous parts can be processed at once in an automatic system which provides an improved technique for cleaning the parts while shortening the cycle time for the entire process.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: July 18, 2000
    Inventor: Lee Moyers
  • Patent number: 6058949
    Abstract: A cleaning apparatus for cleaning and sanitizing a tank, the tank for holding liquid food grade product, the liquid food grade product being transferred into and out of the tank by means of vacuum, the tank having a vacuum transfer system for transferring liquid food grade product includes apparatus for cyclically alternating a flow of cleaning fluid between the tank and the vacuum transfer system.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: May 9, 2000
    Inventor: Marcus J. Engle
  • Patent number: 6056829
    Abstract: Cleaning a milk tank includes rinsing the tank with cold water and washing the tank with a warm liquid. During rinsing, the tank is finally rinsed with substantially warmer water than the cold water with which the tank is initially rinsed, the cold water being cold enough to remove milk residues such as proteins, from the milk tank. A dairy farm milk storage facility specifically adapted for carrying out this method is also described. Milk residues such as proteins are effectively rinsed away by the initially used cold water and no energy is consumed for heating this rinsing water. Subsequently the storage tank is gradually, evenly and very effectively pre-warmed by the final rinsing water prior to the washing stage, so less washing water is required to achieve the required washing temperature while thermal stresses occurring in the tank are kept low.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: May 2, 2000
    Assignee: Alfa Laval Agri AB
    Inventor: Carolus Marinus Bernard Versteijnen
  • Patent number: 6044855
    Abstract: The invention is concerned with a device and a method for cleaning and disinfecting medical instruments, in particular instruments of minimal invasive surgery (MIS). Instead of the rigid connection of cleaning tubings to instrument connections and exits which has been used up to now and which have the disadvantage that certain contaminated regions remain inaccessible for a secure cleaning, there is suggested a docking of injector nozzles in defined chronological intervals, the injector nozzles being fixed in a centric position to the openings of the instrument connections. At the same time various types of injector nozzles are applied for adaptation to various instrument connections and openings. By measuring the rinsing fluid quantity flowing to the instrument connections and the total discharging rinsing fluid quantity, the quality of preparation may be evaluated and documented.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: April 4, 2000
    Assignee: Richard Wolf GmbH
    Inventor: Harry Monch
  • Patent number: 6045698
    Abstract: The invention relates to a method of cleaning a filtration installation of the type including a plurality of immersed membranes in at least one tank containing an effluent to be filtered, said method being characterised in that it includes the steps consisting of:at least partially draining the effluent contained in said tank in a way that exposes said membranes to the air;causing at least one cleaning solution to pass through said membranes along a flow path opposite to the filtration flow of the effluent by feeding in said cleaning solution from the permeate side of said membranes.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: April 4, 2000
    Assignee: Omnium de Traitements et de Valorization (oTV)
    Inventors: Pierre Cote, Annie Tazi-Pain, Patricia Grelier
  • Patent number: 6041797
    Abstract: The present invention is an apparatus for cleaning a vacuum drum used for transferring gummed labels. The apparatus operates by sealing the drum and backwashing a cleaning fluid through the vacuum ports to unplug the perimeter holes. The apparatus comprises a cylindrical housing closed on one end by a plate and, on the opposing end, by a detachable lid. A drum seat, the size of which corresponds to the size of the vacuum drum to be washed, is locked to the bottom of the housing. The drum seat has an inlet for receiving the cleaning fluid and means for dispensing the received fluid to the vacuum ports of the vacuum drum under pressure. Initially, the cleaning fluid is heated to dissolve the adhesive. Subsequently, a cooler liquid is flushed through the vacuum drum to cool it for handling.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: March 28, 2000
    Inventor: David S Casselman
  • Patent number: 6041793
    Abstract: A method and apparatus for converting crude oil tank bottoms in the cargo tanks of a ship to a liquid state is provided. The method comprises subjecting crude oil sludge contained in the tanker cargo tank to a collection system to facilitate extracting the sludge mixture from the bottom of the tank; comminuting the sludge mixture to reduce the size of sludge globules contained therein to produce a homogeneous mixture; optionally adding crude oil from the cargo tank to increase the homogeneity of the mixture; optionally adding an additional quantity of cutter stock and/or other selected additives to the sludge mixture, either before, during or after comminution, to form a blend stock.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: March 28, 2000
    Inventor: Mace T. Miyasaki
  • Patent number: 6021787
    Abstract: An improved system for removing solids such as sand from hydrocarbon liquid and water separation vessels. A nozzle discharges a fluid stream for displacing the solids within the vessel interior through a valve or exit port. The nozzle can be manipulated to selectively control the fluid stream discharge placement. A controller positions the nozzle below the vessel to clear a port and valve above the nozzle. The controller can also position the nozzle within the vessel interior and can control the placement of the nozzle liquid discharge stream. This directional control efficiently directs the solids toward a discharge port and reduces inadvertent movement of the solids into oil buckets and other defined spaces within the vessel.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: February 8, 2000
    Assignee: Production Management Industries, Inc.
    Inventor: Robert P. Luke
  • Patent number: 5996600
    Abstract: A washing system for containers that have been used for chemicals or herbicides. The system has a source of water which is directed into the containers by a wand with a plurality of slots to direct the water against the inside of the container, and a collection system which collects and transfers the used water to a chemical storage tank.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: December 7, 1999
    Inventor: David L. Ostry
  • Patent number: 5985038
    Abstract: A method and apparatus for cleaning hollow elements (6), such as medical instruments having cannulae, is disclosed in which a pulsed flow of cleaning fluid is passed through the element while ultrasonic waves are simultaneously applied to the fluid. The ultrasonic waves loosen any debris during the time when the fluid is substantially at rest, and the pulses of fluid then remove the debris. The apparatus can include a tank (2) containing cleaning fluid (3) into which the element is placed, the cleaning fluid being pumped from the tank into the hollow element. The frequency of the fluid pulses is preferably between zero and 300 Hz, and that of the ultrasonic waves is preferably greater than 15 kHz.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: November 16, 1999
    Inventor: Lawrence Ralph Dawson
  • Patent number: 5979471
    Abstract: Apparatus for removing a liquid (2) containing suspendible solid matter from a tank (1) comprises a plurality of nozzles (47) located at the lower region of the tank. A pump (10) removes the liquid and ejects it through the nozzles (47) to cause resuspension of settled solid matter. When sufficient resuspension has occurred, the tank (1) is emptied by opening a valve to remove a portion of the liquid being transferred to the nozzles (47). The nozzles (47) are arranged as oppositely facing pairs ofjet nozzles at the lower end of a rotatable vertical pipe (46). The pump (10) is suspended by a cable (13) connected to a drum (19) which can be rotated to raise or lower the pump. A pump outlet (12) is connected to a flexible hose (27) which is wound around the drum (19) or around a separate drum (110). A movable containment flask (14) houses the drum (19) and accommodates the pump (10) when withdrawn from the tank (1).
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: November 9, 1999
    Assignee: British Nuclear Fuels plc
    Inventors: David K Wilby, Charles R B Lee, Mark A Knight
  • Patent number: 5975096
    Abstract: A liquid waste disposal and canister flushing system includes a cabinet with a sink for receiving the canister and a subsink for receiving a lower portion thereof. The subsink is connected to a drain line. A plunger subassembly includes a stopper which functions as a drain valve for the canister. An injection jet is connected to water and cleaning solution sources and discharges diluted cleaning solution into the canister for flushing same. The injection jet engages the plunger subassembly for ejecting the stopper from a canister drain opening. A control system includes a programmable microprocessor which can be programmed to provide drain and flush cycles of predetermined duration. A method of liquid waste disposal and canister flushing utilizes the microprocessor for delaying the flush cycle until completion of the drain cycle.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: November 2, 1999
    Assignee: Dornoch Medical Systems, Inc.
    Inventors: James L. Dunn, Timothy A. Carty
  • Patent number: 5964231
    Abstract: Systems and methods are provided whereby additive for thermoplastic materials may be recovered in a primary additive supply system simultaneously with the supply of an additive from a secondary additive supply system to a molten thermoplastic stream. Each of the primary and secondary additive supply systems is provided with respective recirculation lines so as to prevent sedimentation of the additive. According to the present invention, therefore, a protocol is employed whereby substantially all of the additive in the additive supply system, including that quantity of additive in the recirculation lines, may be recovered so that a fresh supply of additive (which oftentimes is different from the previous additive) may be connected for injection into the molten thermoplastic stream at the appropriate time.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: October 12, 1999
    Assignee: BASF Corporation
    Inventors: Daniel H. Kight, Carl R. Holzer, Jr., Dan R. Yon
  • Patent number: 5964230
    Abstract: Apparatus and process for solvent purging a process line of process chemical in a process chemical delivery system typically used to dispense toxic chemicals from replaceable process chemical containers in the electronic fabrication industry.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: October 12, 1999
    Assignee: Air Products and Chemicals, Inc.
    Inventors: George Oleg Voloshin, Robert Sam Zorich
  • Patent number: 5960838
    Abstract: A circular filling machine 10 rotates a plurality of filling units 20 through a plurality of actuator stations 30 and 32. The filling machine 10 is characterized by an adjustment valve, including a seal 38 and a positioning member 40, for determining the quantity of the material 14 to be filled into the chamber 34. The seal 38 is biased downwardly against the positioning member 40 by a spring 50 to hold the seal 38against the inside of the chamber 34 in the closed position. The seal 38 may be moved vertically out of engagement with the positioning member 40 to an open position by a cam 62 and cam follower 64 to allow cleaning material 37 to flush the entire chamber 34. In addition, the vertical operating level of the seal 38 and positioning member 40 may be adjusted vertically in unison to adjust the level to which the chamber 34 may be filled to accommodate containers 11 of various different volumes.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: October 5, 1999
    Assignee: Crown Simplimatic Incorporated
    Inventors: Felix Tietz, Wolfgang Wilke
  • Patent number: 5954067
    Abstract: A method for washing a cored head of lettuce includes placing the head in a position such that the cored hole faces downwardly, spraying an aqueous solution upwardly into the cored hole for a time and at a pressure sufficient to wash the hole, and then propelling the cored washed lettuce head upwardly from the washing position onto a conveyor for the lettuce head with minimal damage to that head.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: September 21, 1999
    Assignee: Fresh Express, Inc.
    Inventors: Richard S. Brown, Eugene D. Rizzo
  • Patent number: 5948358
    Abstract: There is disclosed a washing device for use with an automatic biochemical analyzer using reaction containers. The washing device comprises a sucking portion and a draining tube. When the sucking portion is advanced into any one reaction container placed in position and is set in a given position, a communication passage is created between the inner wall surface of the container and the outer wall surface of the sucking portion and between the bottom surface of the container and the bottom surface of the sucking portion. During draining, the container is depleted of wash liquid. Outside air flows from the communication passage into the container through its opening at the top end at a flow rate more than a given value. The air flow blows away the water droplets adhering to the inner wall surface of the container. The blown water droplets are urged downward toward the sucking port in the suction portion. Then, the water droplets are discharged into a waste tank through the draining tube.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: September 7, 1999
    Assignee: Jeol Ltd.
    Inventor: Shin Saito
  • Patent number: 5938402
    Abstract: Improved cleaning of the nozzle ring and the moving blades of the axial turbine of a turbocharger is to provided by a cleaning device. The cleaning device (20) includes only one nozzle (21, 44) having at least one injection opening (24) as well as a cleaning-agent feed line (23). The injection opening (24) is arranged at any point (38) of an imaginary circular area (34), which in turn is defined by a center (33) arranged at a distance A upstream of the inner casing wall (11) as well as by a diameter d.sub.k. The center (33) lies on an imaginary parallel area (34) formed at a distance A from the inner casing wall (11). The distance A corresponds to the average diameter of the nozzle ring (8) multiplied by a percentage P.sub.1, (5%.ltoreq.P.sub.1 .ltoreq.30%). The center (33) lies at an intersection point (36) of the parallel area (35) and die flow line (17) intersecting the latter at right angles. The diameter d.sub.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: August 17, 1999
    Assignee: Asea Brown Boveri AG
    Inventors: Dominique Bochud, Markus Kohling, Jean-Yves Werro
  • Patent number: 5913984
    Abstract: The invention relates to equipment for cleaning objects such as tanks, pipeline systems etc. in a food treatment plant. The equipment includes a liquid conveying system which is arranged to convey a variable controlled amount of liquid at a variable controlled flow rate. In series with this means system there is a volume and/or flow rate metering device and a control device connected to the volume and/or flow rate metering device and receiving a signal from the metering device. The control device is arranged to actuate the conveying system in response to this signal so that the desired amount of liquid is conveyed at a desired flow rate. The conveying system and the volume and/or flow rate metering device are arranged in a flow path supplying rinsing or cleaning liquid to one or several objects to be cleaned.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 22, 1999
    Assignee: Alfa Laval AB
    Inventor: Jan Lofdal
  • Patent number: 5901717
    Abstract: A liquid waste disposal and canister flushing system includes a cabinet with a sink for receiving the canister and a subsink for receiving a lower portion thereof. The subsink is connected to a drain line. A plunger subassembly includes a stopper which functions as a drain valve for the canister. An injection jet is connected to water and cleaning solution sources and discharges diluted cleaning solution into the canister for flushing same. The injection jet engages the plunger subassembly for ejecting the stopper from a canister drain opening. A control system includes a programmable microprocessor which can be programmed to provide drain and flush cycles of predetermined duration. A number of different container and accessory embodiments are disclosed. A method of liquid waste disposal and canister flushing utilizes the microprocessor for delaying the flush cycle until completion of the drain cycle.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: May 11, 1999
    Assignee: Dornoch Medical Systems, Inc.
    Inventors: James L. Dunn, Timothy A. Carty
  • Patent number: 5893382
    Abstract: A method and apparatus are disclosed for flushing a blood treatment apparatus. The blood treatment apparatus has a first compartment and second compartment separated by a semipermeable membrane substantially impermeable to gas. A flushing circuit is set up by connecting an inlet of the blood treatment apparatus to a flushing liquid source and an outlet of the blood treatment apparatus to a discharge pipe. Liquid is circulated through the flushing circuit in pressure waves. These pressure waves dislodge air bubbles adhering to an inner wall of the blood treatment apparatus and discharge the air bubbles in the flushing liquid.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: April 13, 1999
    Assignee: Hospal AG
    Inventor: Anna Puppini
  • Patent number: 5881751
    Abstract: A method and an apparatus for removing residues from an inner wall surface of a liquid-filled vessel includes a submergible carrier unit drivable in liquid; a coaxial, multi-pole electrode system mounted on the carrier unit; an arrangement for steering the carrier unit to a desired location at the wall surface; and a high-power pulse generator connected with the electrode system for generating a shock wave to be applied to the wall surface at the desired location, whereby the push-pull effect of the forces derived from the shock wave causes the residues to loosen and drop off the wall surface.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: March 16, 1999
    Assignees: TZN Forschungs- und Entwicklungs-zentrum Unterluss, Telerob Ges. fur Fernhantierungs-technik GmbH
    Inventors: Jurgen Hofmann, Bernd Birkicht
  • Patent number: 5881749
    Abstract: An apparatus for cleaning pasta presses, particularly for the "in situ" cleaning of the screws of screw-type machines, kneader mixers and the like in the pasta industry.This is effected without dismantling the machine by conveying cleaning liquids through the screw-type machines which are closed in liquid-tight manner. The cleaning liquids are preferably recycled and filtered.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: March 16, 1999
    Assignee: Buhler AG
    Inventors: Josef Manser, Werner Seiler, Heinz Resch, Jurg Ebneter
  • Patent number: 5876677
    Abstract: A method and apparatus for removing sulfur from gas streams, utilizing liquid redox, including an improved method for preventing build-up of elemental sulfur in a sulfur absorber. Ultrasonic irradiation of one or more portions of the structure of the absorber prevents sulfur build-up. In combination with monitoring of the pressure across the absorber, the freeing of sulfur from surfaces in an absorber can be automatically actuated.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: March 2, 1999
    Inventors: Michael C. Mensinger, Amirali G. Rehmat, Dennis Leppin
  • Patent number: 5873944
    Abstract: A method of and system for removing blockage from pipes in vacuum waste systems in which fouled pipes in the existing vacuum waste system are configured into a closed loop. A cleaning solution is added to the loop. The cleaning solution is recirculated through the loop by pumping it to the ends of the fouled pipes and drawing it through the fouled pipes using the existing system vacuum equipment. The vacuum waste system may remain operational during cleaning.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: February 23, 1999
    Assignee: H.E.R.C. Products Incorporated
    Inventors: Patrick Eugene Lien, Jerome H. Ludwig
  • Patent number: 5866186
    Abstract: A wand for withdrawing fluid from a bag-in-a-box container and for rinsing the bag. A method of withdrawing fluid from a bag-in-a-box container and thereafter rinsing the bag is also disclosed, as is several practical examples of use of the method.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: February 2, 1999
    Inventor: Alberto Bazan
  • Patent number: 5860412
    Abstract: A system for degreasing the interior surfaces of kitchen exhaust ventilation ducting includes a number of nozzles connected to piping disposed interiorly and longitudinally to the ducting by a framework. The nozzles are supplied by a high pressure pump through the piping and direct a stream of high velocity fluid against the interior surface of the ducting. Selective operation of the nozzles preferably minimizes pump capacity. Sequencing of selective nozzle operation from top to bottom preferably produces a rolling cascade of high velocity fluid directed against the interior surface of the ducting. The resulting effluent is readily collected from the lower end of the ducting and disposed of in any manner desired.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: January 19, 1999
    Inventor: Joseph E. Way
  • Patent number: 5840251
    Abstract: A portion of the endoscope that has been withdrawn from the human body is inserted into the tubular body of the device and pressurized water, a liquid detergent, a liquid disinfectant and air are sequentially forced through a water injecting pipe, an inlet pipe and injection pipes that communicate with the tubular body, whereby not only the outer surface of the endoscope but also the inner ducts through it are cleaned, disinfected and dried in a convenient and safe manner.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: November 24, 1998
    Assignee: Nitto Medical Corporation
    Inventor: Yasuo Iwaki
  • Patent number: 5819770
    Abstract: A fuzzy logic based control method adjusts the pump speed of a cleaning apparatus in which tubes or other article are located in a tank of cleaning solution. The tank has a circulation system with a discharge header for directing the cleaning solution at the tubes and a suction header for pulling fluid from the tank. The circulation system has a variable speed pump for circulating the fluid. A funnel directs the flow from the tubes towards the suction header. A fuzzy logic controller is used to determine when the pump speed may be stablized at a cleaning speed creating the proper flow of a cleaning solution through the tubes. The fuzzy logic controller utilizes a novel algorithm to determine the proper pump speed which uses fuzzy input variables for the input flow, the output flow, and the amplitude of the difference.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: October 13, 1998
    Assignee: Randall Manufacturing Co.
    Inventors: Frederick Randall, Alfred J. Raven, III
  • Patent number: 5813422
    Abstract: A method and a device for cleaning an emission testing apparatus, which uses a low volume solenoid structure causes a fluid to flow through the emission testing apparatus, to serve a cleaning function thereof.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: September 29, 1998
    Inventor: Kenneth G. Beck
  • Patent number: 5807359
    Abstract: A medical suction system comprising a medical suction canister used in draining bodily fluid from a patient, and a cleaning station for automatically draining and cleaning the suction canister and for automatically providing a visible indication that the canister has been cleaned.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: September 15, 1998
    Assignee: Bemis Manufacturing Company
    Inventors: Peter F. Bemis, Amelia H. Newar, Steven J. Kolste, William J. Genett
  • Patent number: 5776260
    Abstract: A liquid waste disposal and canister flushing system includes a cabinet with a sink for receiving the canister and a subsink for receiving a lower portion thereof. The subsink is connected to a drain line. A plunger subassembly includes a stopper which functions as a drain valve for the canister. An injection jet is connected to water and cleaning solution sources and discharges diluted cleaning solution into the canister for flushing same. The injection jet engages the plunger subassembly for ejecting the stopper from a canister drain opening. A control system includes a programmable microprocessor which can be programmed to provide drain and flush cycles of predetermined duration. A method of liquid waste disposal and canister flushing utilizes the microprocessor for delaying the flush cycle until completion of the drain cycle. The control system can provide drain and flush cycles of predetermined durations.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: July 7, 1998
    Assignee: Dornoch Medical Systems, Inc.
    Inventors: James L. Dunn, Timothy A. Carty
  • Patent number: 5765580
    Abstract: The present invention relates to a suitable device for completing toilet bowls cleansing, after that water discharged from water hopper has drained, by launching a jet of pressurized water, which device displays the special feature of consisting of a support means carrying a container to be filled/refilled with water, the necessary apparatus form pressurizing said water, and a water launching nozzle body.The support means carrying the above said elements can be suitably statically positioned (fastened), whereas, although it remains functionally connected with said support means, the water launching nozzle body can be moved away from it and, while being hand-carried by the user, can be freely oriented by her/him nearby said support means.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: June 16, 1998
    Assignee: Imetec S.p.A.
    Inventor: Francesco Dassi
  • Patent number: 5752286
    Abstract: A new and improved cleaning and storage system for a body cavity aspirator instrument includes a holder having a narrow mouth configuration for receiving an aspirator instrument therein for temporary storage purposes between periods of non-use. An inlet disposed in a base portion and spaced apart from a distal end of the holder permits the admittance of a cleaning agent in a sufficient volume into the base portion of the holder to clean the instrument according to the novel method of cleaning. A wiper cap disposed over the mouth of the holder, helps wipe the instrument of residual fluids when being inserted and removed from the holder. A mounting arrangement permits the holder to be supported from any convenient surface in close proximity to a patient/user.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: May 19, 1998
    Inventor: Clifford A. Wright
  • Patent number: 5753195
    Abstract: An improved apparatus which can be used for cleaning and/or sterilizing tubular items. A container is partitioned into two chambers with the item to be cleaned and/or sterilized is positioned to extend through the partition such that one opening lies in one chamber and another opening lies in the other chamber. A flexible membrane is positioned to affect each chamber. By deforming the flexible membrane, inward and outward, a flow between the chambers is created. This flow must pass through the hollow item. Mechanical pressure from the flow cleanses the interior of the tubular item and if a sterilant is used as the medium, then the interior portion of the hollow item is also sterilized.
    Type: Grant
    Filed: January 2, 1996
    Date of Patent: May 19, 1998
    Assignee: Kew Import/Export Inc.
    Inventors: Terrence R. Langford, David L. Davis
  • Patent number: 5711921
    Abstract: An improved apparatus which can be used for cleaning and/or sterilizing tubular items. A container is partitioned into two chambers with the item to be cleaned and/or sterilized is positioned to extend through the partition such that one opening lies in one chamber and another opening lies in the other chamber. Pressure is applied to one chamber forcing the liquid to surge into the second chamber. The surging affect is facilitated through the use of either a flexible membrane in the second chamber, or the use of dual pistons which are one hundred eighty degrees out of synchronization such that one chamber is being pressurized while the second chamber is be de-pressurized.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: January 27, 1998
    Assignee: Kew Import/Export Inc.
    Inventor: Terrence R. Langford
  • Patent number: 5709236
    Abstract: A colostomy pouch rinsing device comprises a faucet coupling assembly including a central elbow member having an upper section including faucet coupling devices and a lower section including a first compression unit; a water control handle including a main body and a control lever coupled thereto; a rubber hose having an inboard end being coupled to the faucet coupling assembly, the outboard end of the hose being coupled to the water control handle; a spray head formed in a hollow, generally cylindrical configuration with an upper end including a plurality of water apertures projecting therethrough; and copper tubing with an inboard end being threadedly coupled to the projection member of the handle and an outboard end formed contiguously with the spray head.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: January 20, 1998
    Inventor: Ernest L. Rodriguez
  • Patent number: 5701922
    Abstract: 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 water, detergent builder and wetting agents. The solution is maintained at a selected concentration and at a selected elevated temperature range by continuously recirculating the solution through the automated coating equipment. For manual equipment the solution is set at the correct concentration and maintained at the correct temperature range. For an automated system, spent purge solutions can be reconditioned and recirculated to avoid waste.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: December 30, 1997
    Assignee: Dalco Industries, Ltd.
    Inventors: Richard E. Knipe, Jr., Savarimuthu M. Jacob, Thomas Mancini
  • Patent number: 5694957
    Abstract: A cleaning system for cleaning the interior pump and piping system of a whirlpool spa is disclosed. The device comprises a compartmentalized tank having an intake chamber and an outlet chamber. The outlet chamber is placed into fluid communication with the spa's suction intake fitting. The intake chamber is placed into fluid communication with the spa's jet openings. Cleaning fluid is introduced into the outlet chamber and cycles from the outlet chamber, through the spa's pumps and pipes, through the spa's jet openings, into the intake chamber, and back into the outlet chamber, which is in fluid communication with the intake chamber. From there, the fluid begins the cycle again. A pair of cooperating valve assemblies block fluid communication between the intake chamber and the outlet chamber and force the cleaning fluid out of the device upon the completion of the cleaning operation.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: December 9, 1997
    Inventor: Fred D. Lee, Jr.
  • Patent number: 5692444
    Abstract: The invention relates to a cleaning device for use in cleaning a paste supply system of a rotary screen-printing machine, which paste supply system at least comprises a pump as well as a paste suction line and a paste pressure line, while the cleaning device at least comprises a cleaning agent container, for liquid cleaning agent, by means of which the paste suction line and the paste pressure line can be placed in liquid communication for the purpose of interaction between the paste supply system and the cleaning device, the cleaning device being characterized in that flow-altering means are present. Preferably, the flow-altering means which impart to the cleaning agent, as it flows through the cleaning device and the paste supply system interacting therewith, a direction of flow at least over part of the paste suction line and/or the paste pressure line which has both an axial and a radially outwardly directed velocity component.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: December 2, 1997
    Assignee: Stork Brabant B.V.
    Inventors: Wilhelmus J.A.L.M. Claassen, Wilhelmus J.T. Veugelers, Henricus G.M. Kempen
  • Patent number: 5679038
    Abstract: A flushing device (30) for the cooling system of a marine drive (10) includes a housing (32) having an inlet (34) for receiving pressurized flushing coolant, an outlet (36) for discharging the flushing coolant to the marine drive cooling system, a pulsation chamber (33) between the inlet (34) and outlet (36), and a pulsation mechanism (40) in the pulsation chamber (38) and receiving the pressurized flushing coolant and imparting a pulsation movement thereto and delivering pulsating flushing coolant to the outlet (36).
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: October 21, 1997
    Assignee: Brunswick Corporation
    Inventors: Gerald F. Neisen, Richard A. Davis, James C. Hubbell
  • Patent number: 5673717
    Abstract: The present invention relates to a flushing device for internal flushing of tanks, preferably tanks in vessels or ships, whereby a turbine wheel (13) in a turbine device (8) is mounted in a supply conduit (10) so that said wheel (13) is driven by the flow of flush liquid in said supply conduit (10), and whereby the turbine wheel (13) is provided to operate a driving assembly located outside the supply conduit (10) and provided to bring a flush-liquid pipe to rotate and at the same time revolve or turn flush nozzles (7). A magnetic coupling (50) is provided to transfer by means of magnetic power, the rotary motions of the turbine wheel (13) from the interior of the supply conduit (10) to the driving assembly (9) located outside said supply conduit (10). Furthermore, the turbine wheel (13) is displaceably mounted for increasing or decreasing the speed of rotation thereof.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: October 7, 1997
    Inventor: Lars Henry Jinback
  • Patent number: 5642743
    Abstract: A pressurized closed flow cleaning system for cleaning the interior surface of industrial processing equipment. The system includes a pressure vessel containing an aqueous cleaning solution including the combination of enzymes and a surfactant. A supply conduit connects the pressure vessel with equipment to be cleaned and serves to supply the cleaning solution to the equipment, while a return conduit connects the equipment to the pressure vessel and acts to return the cleaning solution to the pressure vessel, thus providing a closed flow system. The solution is circulated through the closed flow system by a pump located in the supply conduit and the aqueous solution is heated to a temperature, preferably in the range of about 220.degree. F. to 260.degree. F., by a heat exchanger which is located downstream of the pump. Flow of the heated cleaning solution through the equipment to be cleaned will remove oil and solid contaminants.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: July 1, 1997
    Assignee: United Laboratories International LLC
    Inventor: Randy L. Ranes
  • Patent number: 5637103
    Abstract: A fluid collection and disposal system which includes a reusable collection unit designed to operate in conjunction with a disposable manifold for collecting fluids aspirated from a patient during a surgical procedure, and to be cleaned by a servicing unit after use. The servicing unit removes the collected fluid from the collection unit and prepares it for reuse. The disposable manifold is removed from the collection unit prior to its attachment to the servicing unit, and a new disposable manifold is replaced on the collection unit after servicing.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: June 10, 1997
    Inventors: Michael J. Kerwin, Jacky S. Yam, Keith G. Korte, Theodore J. Klefisch, Jr., Alan B. Ranford, Jerry W. Olive