With Antileak Or Antisiphon Means Or Full-stroke Mechanism Patents (Class 222/375)
  • Patent number: 9033189
    Abstract: A sealer gun that discharges a liquid of a coating agent or filler from a nozzle on its tip is securely prevented from producing dripping that arises as a liquid drips from the nozzle tip and remains when the liquid discharge stops. A pump including a cylinder and a freely movable piston fitting therein is assembled onto a discharge cylinder of the sealer gun, an operation rod interlocked with the pump piston and a grip are interlocked via an interlock mechanism to perform pump operation of suction-discharge by movement of the piston caused by pivoting of the grip, and a suction-discharge aperture of the pump is positioned in an internal space of the nozzle, and configured so that when the liquid discharge sops by releasing the grip, a negative or positive pressure is introduced into the nozzle because of the pump operation caused by resilient pivoting of the grip.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 19, 2015
    Assignees: TOYOTA MOTOR EAST JAPAN, INC., MTEX MATSUMURA CORPORATION
    Inventors: Kazuhiko Sato, Kichizo Maeno, Hirota Kudo, Shoji Matsuyama, Junichi Murao, Kazuhiro Ishiyama, Shouichi Odashima, Toru Sasaki
  • Publication number: 20150090737
    Abstract: Exemplary embodiments of dispensers and refill units having suck-back mechanisms are disclosed herein. An exemplary refill unit includes a container, a pump connected to the container, and an outlet passage. The outlet passage includes a first cylindrical portion and a second portion. The diameter of the second portion is larger than the diameter of the first cylindrical portion. An inline suck-back valve is located in the in the outlet passage. The inline-suck-back valve moves within the first cylindrical portion and the second portion of the outlet passage. Movement of the inline suck-back valve in a first direction while the inline suck-back valve is located within the first cylindrical portion causes fluid in the outlet passage to be drawn back into the outlet passage.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Applicant: GOJO Industries, Inc.
    Inventors: Nick E. Ciavarella, Robert A. Emmett
  • Patent number: 8960504
    Abstract: A dispensing apparatus for containing a pressurized composition, said dispensing apparatus comprising: a reservoir for containing a composition; an actuator head comprising a side wall having an interior surface, said actuator head forming a dispensing orifice through said side wall; a displaceable flow conduit comprising a proximal end in fluid communication with said reservoir and a distal end forming a flow conduit orifice, said distal end being movably engaged with said interior surface of said actuator head; and an intermediate member interposed between said interior surface and said distal end and forming an aperture; and wherein said displaceable flow conduit is biased to an at-rest position and can be movably actuated to at least partially engage said intermediate member in a dispense position, thereby at least partially aligning said dispensing orifice with said flow conduit orifice.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: February 24, 2015
    Assignee: The Gillette Company
    Inventors: William Mercer Benson, Andrew William Franckhauser, Todd Mitchell Day, Shaun Shang-Yun Chan, David Matthew Groh, Brian David Andres, Scott Edward Smith
  • Patent number: 8899450
    Abstract: Dosing device (100) for dispensing a specified vol? ume of liquid, comprising an electromagnet (1 11) and being adapted to hold a pump (1 12) with a magnetisable pumping member (1 10) displaceable under the action of the electromagnet when the pump is held by the dosing device. The dosing device further comprises a portable voltage source (1 13) adapted to energize the electromagnet by repeated current pulses and to measure the current intensity at least once per pulse, thereby estimating the charge amount in each pulse, until a total charge amount corresponding to the speci? fied volume of liquid to be dispensed has been supplied. A method including pulse-wise activation of an electromagnet actuating a pump having a magnetisable pumping member is also disclosed.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: December 2, 2014
    Assignee: Aktiebolaget Electrolux
    Inventors: Daniel L. Johansson, Per-Erik Pers
  • Patent number: 8245884
    Abstract: An airless type cosmetics vessel, in which, in order to suck a gel type cosmetic from a vessel body into a cylinder chamber, an axial valve primarily opens an inlet passage and closes an outlet passage according to stepwise upward movement of a piston and an axial valve, and the piston is further moved upwards, thus sucking the cosmetic into the cylinder chamber, and, in order to discharge the cosmetic from the cylinder chamber, the axial valve is primarily moved downwards so as to close the inlet passage and open the outlet passage, and the piston is further moved downwards, thus compressing the cosmetic in the cylinder chamber and discharging the cosmetic from the chamber, so that a precise cosmetic suction and discharge operation can be executed by the stepwise suction and discharge actions of the axial valve and the piston, separately provided, without malfunctioning.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: August 21, 2012
    Inventor: Jae Sam Byeon
  • Patent number: 8245887
    Abstract: A content discharge mechanism for a container with a pump has a discharge outlet that is fixed in position. The device has an operation button and a cylindrical piston that move as one, as well as a ball valve that rests on a seat. The ball valve opens as the cylindrical piston retracts after an actuation to allow more fluid into the upstream passage chamber. A downstream passage with a valve for dispensation fluidly communicates with the upstream passage through a hole. As the cylindrical piston and its seal slide over the hole, the discharge from the downstream passage stops.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: August 21, 2012
    Assignee: Mitani Valve Co. Ltd.
    Inventor: Yasuo Ohshima
  • Patent number: 8226214
    Abstract: An inkjet printhead includes an ink supply channel extending through a substrate; an ink chamber arranged on the substrate, into which chamber ink from the ink supply channel is supplied, the ink chamber defining an ink ejection port on one surface thereof; an internal rim provided within the ink chamber, the rim interposed between the ink supply channel and the ink ejection port; and a thermal bend actuator extending into the chamber from outside the chamber, the thermal bend actuator terminating in the chamber with a paddle. The periphery of the paddle and the internal rim are shaped with complementary edges turned towards the ink ejection port.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: July 24, 2012
    Assignee: Zamtec Limited
    Inventor: Kia Silverbrook
  • Publication number: 20120145747
    Abstract: A container for use with a handheld fluid dispenser is provided. The container may include a container body having interconnected walls that define an inside space therebetween and in which liquid contents are held. An opening may extend through the container body and permit access to the liquid contents in the container body. A cap may engage the container body and be aligned with the opening of the container body. The cap may include a rim that defines an outer portion of the cap. A neck may be arranged concentrically within the rim, the neck including a bore that extends longitudinally through the neck and is aligned with the opening of the container body. A recess that has an annular shape may be defined between the rim and the neck of the cap.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 14, 2012
    Inventors: Jeremy F. Knopow, Jeffrey L. Crull, Lawrence J. Fenske, Cunjiang Cheng, Cory J. Nelson, Jose M. Arevalo
  • Patent number: 8196782
    Abstract: Device for ice cream distributor in cooled windows and similar, fit to prevent the ice cream melting in the outlet area comprises at least a duct with an outlet hole and control element of the ice cream flow. In the outlet duct (2) is inserted a piston (5) with a stem (6), or similar, which, at distributing position, is placed beyond the outlet hole (3) through which the ice cream exits. while, at rest position, is placed before the outlet hole (3), in such a way to block the ice cream exit. During the return motion, the piston (5) brings back the ice cream already in the duct into the inner portion of the cooled space, delimited by the dividing wall (4), or in same container (1), in such a way to avoid the ice cream melting at the end portion.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: June 12, 2012
    Inventor: Franco De Blasi
  • Patent number: 8191733
    Abstract: An arrangement for dispensing color paste, a shading apparatus, a method, a computer program product, and a memory. The arrangement includes a piston pump including a feed channel. The feed channel is provided with a substantially different amount of color paste per travelling length unit when the piston is moving towards the first end of the cylinder than when the piston is moving towards the second end of the cylinder. The arrangement further includes a valve connected to the feed channel, a dispensing channel connected to a first outlet channel of the valve for conveying color paste into a can, and a by-pass feed channel connected to a second outlet channel of the valve for conveying color paste past the can for the paint to be shaded.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: June 5, 2012
    Assignee: CPS Color Equipment Oy
    Inventor: Tapio Seppänen
  • Patent number: 7712633
    Abstract: Provided is a liquid dispensing package for a container adapted to contain a liquid that includes a hand operated pump assembly coupled to an actuator, a liquid distribution subsystem in fluid communication with a discharge tube from the pump assembly, wherein downward motion of the actuator, provided by a user, causes liquid to travel through the discharge tube to the actuator top surface, and a through-pump liquid drain-back subsystem that permits drain-back of liquid from the top surface of the actuator when the actuator is in a rest position.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: May 11, 2010
    Assignee: The Clorox Company
    Inventors: Timothy Kennedy, Tami O'Connell
  • Patent number: 7681765
    Abstract: This patent discloses tools, methods and systems for dispensing soap. The tools, methods and systems include a draw-back chamber constructed around and in line with the fluid path between a spout assembly for delivering soap to a user and a pump mechanism for supplying the soap. The draw-back chamber contains port openings into the fluid path. When the pump mechanism is actuated to dispense soap, the draw back chamber is collapsed and soap within it is dispensed with the main dose of soap supplied by the pump mechanism. When the pump mechanism is allowed to return to its extended rest state, the draw-back chamber expands, drawing soap into it through the port opening to prevent soap from hanging and dripping at the end of the dispensing tube.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: March 23, 2010
    Assignee: Technical Concepts, LLC
    Inventor: Kenneth J. Muderlak
  • Publication number: 20090272765
    Abstract: The tip-stop mechanism for an aerosol container has a needle valve placed into a passage area and closes discharge hole due to plate springs engagement with tapered surfaces of the needle valve. An operation lever is supported on a pivot shaft and when pressed downward forces a portion of the lever to cause the needle valve to move backward, opening the discharge hole. After that, the operation lever engages the upper surface of the spout and moves downward together with the spout and the stem, thereby the lever is shifted to an operation mode.
    Type: Application
    Filed: June 8, 2006
    Publication date: November 5, 2009
    Applicant: MITANI VALVE CO., LTD.
    Inventors: Masaaki Seki, Masato Suzuki
  • Publication number: 20090212076
    Abstract: The invention relates to a container system comprising a container with an integrated pump mechanism of a submersible pump, particularly a drum pump or a container pump with a pump lance. This pump lance can be inserted into the container via a bunghole, and a rotor shaft, which has a pump rotor mounted thereon in a rotationally fixed manner and which is actively connected to a drive motor, extends through the pump lance. By virtue of the fact that the submersible pump has a pump head and a pump mechanism, which are designed so that they can be separated from one another, and a withdrawal connection is assigned to the pump head that can be removed from the pump mechanism, the invention ensures that the container, which is advantageously provided with a bunghole that is drawn deeper or is otherwise situated lower, forms, together with the pump mechanism integrated in the container, a stackable and transportable unit that can be sealed tightly. The invention is for use in SCR technology or AdBlue® technology.
    Type: Application
    Filed: August 24, 2005
    Publication date: August 27, 2009
    Inventor: Volker Fertig
  • Publication number: 20090101679
    Abstract: This patent discloses tools, methods and systems for dispensing soap. The tools, methods and systems include a draw-back chamber constructed around and in line with the fluid path between a spout assembly for delivering soap to a user and a pump mechanism for supplying the soap. The draw-back chamber contains port openings into the fluid path. When the pump mechanism is actuated to dispense soap, the draw back chamber is collapsed and soap within it is dispensed with the main dose of soap supplied by the pump mechanism. When the pump mechanism is allowed to return to its extended rest state, the draw-back chamber expands, drawing soap into it through the port opening to prevent soap from hanging and dripping at the end of the dispensing tube.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 23, 2009
    Applicant: TECHNICAL CONCEPTS LLC
    Inventor: Kenneth J. Muderlak
  • Patent number: 7040223
    Abstract: A stencil printing ink container includes an ink container body. An ink charge port is provided in an end wall of the ink container body and an inner plug is mounted on the ink charge port. The inner plug is provided with an ink discharge port smaller in the outer diameter than the inner diameter of the ink charge port and gives an ink suction nozzle of an ink pump access to the ink discharge port.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: May 9, 2006
    Assignee: Riso Kagaku Corporation
    Inventors: Masakatsu Arai, Kaoru Kimura
  • Patent number: 6712244
    Abstract: A dispensing device for dispensing a measured quantity of a concentrated cleansing liquid into a spray bottle or any other suitable receptacle, is provided with means for pumping the measured quantity of the liquid from a source into a holding reservoir. The dispensing device includes inhibiting means for preventing the interruption of a priming stroke as the liquid is pumped from the source into the reservoir and for preventing the interruption of a delivery stroke as the liquid is pumped from the reservoir to the receptacle. The inhibiting means includes a pivotable lever having an arcuate rib engaged by a pair of locking members arranged to engage opposite tracks of the arcuate rib.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: March 30, 2004
    Assignee: Brightwell Dispensers Limited
    Inventors: Geoffrey Sallows, David Grant Barnett, Etienne Vincent Bunoz, John Frayn Ewans
  • Patent number: 6641000
    Abstract: A fuel conduction system is provided for conducting fuel between a fuel source and a fuel consuming device which are either integrated as a single unit or apart as separate units. The system generally comprises concentric supply and return tubes for connection between the fuel source and the pump of a consuming device. A valve is positioned in series with the supply line which prevents siphoning of the contents of the supply line if it is damaged. Anti-siphoning and flashback arrest measures are also provided on the return line. In one embodiment, the fuel conduction system may be used on a portable fuel storage devices for refueling various consuming devices. In another embodiment, the fuel conduction system may be used on a fuel consuming device, between the pump and fuel storage container thereon, so that the fuel storage container may be selectively separated from the device in a safe manner.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: November 4, 2003
    Inventor: Jack Lange
  • Patent number: 6422434
    Abstract: A fixed-nozzle dispenser pump suitable for large doses has a downwardly-directed nozzle tip (32) and an outlet valve arrangement (4) in a nozzle (3). A blocking element, such as a ball (41), of the outlet valve arrangement (4) is biased back along a close-fitting tubular draw path (43) in the valve after dispensing, so as to draw product back out of the nozzle tip and prevent dripping. A further feature is a subdivision of the nozzle tip and a flexible flap valve (35) blocking a resulting passage segment in the nozzle. This facilitates clearance of another nozzle passage (36) by the reverse suction. A further feature is a membrane (24) across the front of the piston plunger, advanceable relative to a piston seal (231) by pressure of a plunger head (21). This helps accomomodate the returned fluid and enables a spot-dosing action.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: July 23, 2002
    Assignee: Rieke Packaging Systems Limited
    Inventors: Anthony Charles Lammond Wass, Jeffrey William Spencer, Richard Smith, Brian Robert Law
  • Patent number: 5897031
    Abstract: A dispenser for dispensing products such as liquid antimicrobials is described. The dispenser includes a bracket/actuator assembly and a container assembly. The dispenser includes a novel mechanism for attaching the container assembly to the bracket/actuator assembly and also includes a novel valve assembly.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: April 27, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David F. Wirt, Floyd L. Foslien
  • Patent number: 5829640
    Abstract: A dispensing pump including an actuator coupled to a resilient bellow, wherein the bellow is in fluid communication with the contents of a container via an inlet valve. Expansion of the bellow, caused by the resilience of the bellow, creates negative pressure causing the contents of the container to be drawn through the inlet valve and into a space defined by the bellow. The dispensing pump also includes an outlet valve in fluid communication with the bellow such that compression of the bellow caused by the application of pressure to the actuator creates positive pressure within the bellow causing the contents held within the bellow to be forced through the outlet valve and out of an outlet of the dispensing pump.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: November 3, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Donald E. Hershey, Eric R. Bartsch
  • Patent number: 5687877
    Abstract: A tulip-type check valve is housed in a cylindrical chamber, the length of which is greater than the check valve itself so that during the pressure stroke of the pump, the valve moves forward in its chamber and flexes to permit flow about its periphery. During the suction stroke, the valve closes and is drawn backward upstream in its chamber and there is a sucking back of liquid between the check valve and the orifice to obviate nozzle the drip.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: November 18, 1997
    Assignee: Owens-Illinois Closure Inc.
    Inventor: Richard J. Smolen, Jr.
  • Patent number: 5638991
    Abstract: A bottled water dispenser is similar in size to those available on the market today. An upright five gallon bottle slides onto a dolly and is held fast to the dolly by a stretch cord. The dolly with bottle is wheeled into the bottom of the dispenser. Alternately, the dispensing system may be assembled upon the dolly itself. A tube with a rubber stopper at one end and a check valve at the other end is inserted into the bottle. Pushing a button on the face plate of the dispenser cabinet activates an internal electric pump. The pump draws water from the bottle through the check valve and forces it out of the spigot under pressure. Internal solenoid valves force the water through a heating unit, cooling unit or filtration system before exiting through the spigot. Each temperature is achieved by pushing a different colored button on the face plate. The dispenser operates on 240 V AC, 120 V AC or 12 V DC. It has a built in auxiliary battery back up in the event of power outages or for portable use.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: June 17, 1997
    Inventors: Terry J. Todden, Richard A. Thornberry
  • Patent number: 5439141
    Abstract: A manifold for use with a hand held pump spray device allowing the spray head to draw simultaneously from two separate reservoirs containing two different fluids such that the spray heads raise a mixture of the two fluids in a predetermined ratio. The manifold includes at least one ball check valve arrangement in the suction line to the chemical concentrate reservoir, the ball check valve being normally biased to a closed position. The check valve presents the pumping of the concentrate when the diluent reservoir is spent and further prevents cross contamination between the fluids in the two reservoirs due to syphoning.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: August 8, 1995
    Assignee: Scott Paper Company
    Inventors: Gregory Clark, Stanley I. Mason, Jr.
  • Patent number: 5409146
    Abstract: A container-mounted dispensing pump incorporates elastomeric duckbill valves for controlling the flow into and from the pump chamber. A mechanism within the pump employs hinged leaves which cooperate with the pump plunger to effect a pinching and closing one of the duckbill valves when the plunger is disposed in a depressed, shipping position. With the pump plunger held in the shipping position, the closed duckbill valve will preclude leakage of the container contents through the pump.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: April 25, 1995
    Inventors: Robert E. Hazard, Frederick R. Handren
  • Patent number: 5353969
    Abstract: A liquid dispensing pump capable of inverted spray has a container vent including a spiral vent groove of a length restricting the free flow of liquid therethrough to avoid leakage, and being sized so that while dispensing in the inverted position the rate of liquid discharge from the container is greater than the flow of air through the vent groove which thereby creates a vacuum in the container and effects a suck-back of air through the vent into the container for venting.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: October 11, 1994
    Assignee: Calmar Inc.
    Inventor: Mark A. Balderrama
  • Patent number: 5305916
    Abstract: In a pump, a piston rod is mounted for lost motion on a piston head so that when the piston rod 31 is advanced by a full stroke in a forward direction from a fully retracted position, only the piston rod moves for an initial stroke portion S2, then a piston head is also advanced with the piston rod for a final stroke portion which is equivalent to a difference between the full stroke S1 and initial stroke portion S2 (S3=S1-S2), and a liquid inside said cylinder is expelled from the exhaust port by a quantity corresponding the final stroke portion S3. When the piston rod is being withdrawn in the return direction, only the piston rod is moved during the initial stroke portion causing residual liquid in a passageway from the cylinder to the exhaust port to be sucked back to the cylinder.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: April 26, 1994
    Assignee: Kabushiki Kaisha San-Ai
    Inventors: Michifumi Suzuki, Atsushi Matsuura, Kenji Tsukiji, Takahiro Tomioka
  • Patent number: 5267676
    Abstract: The device of the invention dispenses a liquid, such as detergent or softener, into a clothes washing machine. The device includes two components: a container and a nozzle assembly. The container holds a quantity of liquid and a vane pump. The pump pumps the liquid through a conduit to the nozzle assembly. An anti-siphon tube is located in a hole in the conduit, within the container, but above the level of the liquid. When the pump is shut off, the anti-siphon tube prevents the creation of a siphon effect within the conduit. The nozzle assembly includes a nozzle housing, a hose from the container to the nozzle housing, and a nozzle to direct the liquid into the tub of the washing machine.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: December 7, 1993
    Inventors: Anita C. Lord, Jack J. Gilbert
  • Patent number: 5234135
    Abstract: A pump for dispensing or spraying a fluid product comprises a pump body delimiting a pump chamber in which slides a piston. The pump comprises a hollow plunger-rod having an outlet passage. The plunger-rod is coupled to the piston to actuate the piston and to enable escape of the product. The pump further comprises an aspiration chamber which communicates with the hollow plunger-rod and which is reduced in volume when the plunger-rod is depressed and increased in volume when pressure is removed from the plunger-rod. The aspiration chamber is delimited by the piston and the plunger-rod and the volume of the chamber is varied by relative sliding movement between the plunger-rod and the piston.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: August 10, 1993
    Assignee: Valois (Societe Anonyme)
    Inventors: Alain LaFosse, Firmin Garcia, Jean-Pierre Lina
  • Patent number: 5235390
    Abstract: A developing device including a device body which has a toner reception port and supplies toner stored therein to a photosensitive member, a toner cartridge, which is detachably mounted in the device body has a toner discharge port opposed to the toner reception port, and supplies toner stored therein to the device body through the ports, and a toner cartridge cover which has a side that is connected to the device body without a gap. When the toner cartridge is removed from the device body of the developing device to the toner cover, the toner left in the toner cartridge doesn't leak out the gap between the toner cartridge and the cartridge cover and the surroundings of the developing device are not soiled with the toner.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: August 10, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takashi Ishikawa
  • Patent number: 5129551
    Abstract: A liquid dispensing system for example for paints comprises a liquid reservoir, a circulating path for the liquid to and from the reservoir, a pump for causing a pressurized flow around the path, a three-way valve in the path which is controllable to divert liquid from the path via a second valve to a dispensing nozzle. The second valve is biased to a closed position and is openable by the hydraulic pressure of the diverted liquid to permit the diverted liquid to flow to the nozzle. In a multiple liquid dispensing system, e.g. a paint blending system, each liquid has its own dispensing system as described above and the plurality of second valves thus provided are disposed in a conical formation with the nozzles directed towards the apex of the cone.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: July 14, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventor: Granville Gott
  • Patent number: 4938392
    Abstract: Leakage of liquid from a container having an atomizer of the type including a cylinder piston moveably mounted within a ring body and defining an annular air gap therebetween is prevented by providing the upper end of the ring body with an inwardly directed annular flange disposed in sealing and sliding engagement around the piston to prevent escape of fluid from the air gap due to inadvertent movement of the piston. The piston includes either a stepped diameter configuration or a plurality of circumferentially spaced longitudinal grooves which, when encountered by the flange after the piston has been intentionally moved a predetermined distance, permits air to flow through the air gap for dispensing liquid from the atomizer.
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: July 3, 1990
    Inventor: Cheng-Yuan Su
  • Patent number: 4930670
    Abstract: A pumping mechanism for a bottled lotion is constructed so that lotion is prevented from flowing out of the bottle if the bottle is inadvertently not placed upright. The pumping mechanism includes a hollow cylindrical member, a piston member, a hollow operating rod, a cap, a hollow pressing member, a ball, an upper valve, and a compression spring arranged in a manner so that when the operating rod is pressed downward, it will disengage the upper valve from the piston member before the bottom end thereof matches against the piston member.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: June 5, 1990
    Assignee: Smiley Chien
    Inventor: Frauk Kuo
  • Patent number: 4883202
    Abstract: Anti-spill apparatus including a liquid recovery system, for use with a liquid pumping system, which recovers and returns to a liquid container, any liquid which is inadvertently emitted by the liquid pumping system. The apparatus contemplates a pump, having a feeder hose received in a liquid containing barrel, for conveying chemicals and the like contained in the barrel, to a remote location and a new mounting system for mounting the pump on the barrell. The recovery system includes a splash guard which encases a portion of the pump, a recovery hose coupled between a downstream portion of the feeder hose and the splash guard, and a drain spout which receives the liquid from the splash guard and conveys it to the liquid container.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: November 28, 1989
    Inventor: Arthur A. Wahl
  • Patent number: 4671429
    Abstract: A method and apparatus for dosing viscous, aerated material like ice-cream and ice mixes. The method comprises filling a volumetric dosing chamber from a supply, dispensing said amount through a dispensing conduit and returning at least part of the material remaining in said conduit to the supply. The apparatus comprises two preferably coupled three-way valves, the one connecting a dosing chamber with either a supply or a dosing conduit, the other connecting a suction device with either the dosing conduit or the supply.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: June 9, 1987
    Assignee: Thomas J. Lipton, Inc.
    Inventors: Cornelis Spaanderman, Robert van der Hulst, Abraham W. van Rij
  • Patent number: 4646969
    Abstract: Double-acting mechanical liquid spraying device having a housing which is adapted to be mounted upon and sealed to the neck of a liquid container, and which has a liquid-containing compartment therein. In the housing, aligned with the liquid-containing compartment, there is an operation cylinder which has an annular valve seat disposed transversely to and intermediate the length of such cylinder. Disposed within the liquid-containing compartment is a liquid pumping plunger of the cuff type which cooperates with the valve seat to close the opening through such seat when the plunger is in its forward terminal position, and which is driven to reciprocate within the liquid-containing compartment in forward and reverse liquid dispensing strokes. In each of such strokes the plunger forwards liquid from the liquid-containing compartment to a spray nozzle through a liquid-conducting passage.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: March 3, 1987
    Assignee: Ceskoslovenska Akademie Ved
    Inventors: Miloslav Sorm, Jiri Vacha, Karel Ulbert, Frantisek Jagos, Stanislav Nespurek, Josef Langpaul, Stanislav Skalicky, Jaromir Kensa, Miroslav Zvonicek, Oldrich Drabek
  • Patent number: 4640443
    Abstract: A dispensing pump of the pressure accumulating type includes a reciprocable plunger/accumulator having a discharge valve coaxial with an inlet check valve carried by a stationary pump piston, the valves bearing directly against one another so as to close each other at the end of the plunger downstroke to thereby control the output of the pump.
    Type: Grant
    Filed: January 8, 1985
    Date of Patent: February 3, 1987
    Inventor: Douglas F. Corsette
  • Patent number: 4605297
    Abstract: A method of an apparatus for insuring application of a preselected amount of processing fluid to photographic film material are disclosed. A weight sensing device weighs a container of the fluid and permits pumping of the fluid if there is an adequate amount of fluid contained in the container. A magnetic sensing arrangement also effects reversal of the pumping after a preselected length of material has had fluid applied thereto. At the completion of fluid application, the fluid is evacuated from the nozzle.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: August 12, 1986
    Assignee: Polaroid Corporation
    Inventors: James J. Livingston, Duncan C. Sorli
  • Patent number: 4588109
    Abstract: In a thermo-cementing and folding machine which has a suck-back facility, by which at the end of an adhesive-applying operation adhesive supplied through the nozzle (22) is sucked back into the nozzle so as to prevent `drooling`, auxiliary suck-back steps are introduced at timed intervals following the primary suck-back operation, through controlled amounts, in order to counter further risk of `drooling` caused by thermal expansion of the adhesive in the nozzle (22). The number of auxiliary suck-back steps is variable according to the adhesive supply rate at the time of termination of the adhesive-applying operation.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: May 13, 1986
    Assignee: USM Corporation
    Inventors: Ewen R. Cameron, Robert Yardley, Frank H. Wolloff
  • Patent number: 4567908
    Abstract: A discharge system for a tubing system in an apparatus for the selective transport of fluid volume quantities, for instance in a particle analyzer. Fluid is transported by means of a delivery pump from a first vessel through a transport conduit to a second vessel. Carry-over from one specimen to the next as well as foam, droplets and bubbles at the outlet or delivery nozzle are to be circumvented. A substantially T-shaped fitting is arranged in the transport conduit and its lateral branch leads through a valve to a collector vessel which is maintained under vacuum by a pump. After closing the valve and filling the first vessel, the delivery pump is operated.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: February 4, 1986
    Assignee: Contraves AG
    Inventor: Martin Bolsterli
  • Patent number: 4493440
    Abstract: A wall mounted soap dispenser made of plastic is described. The dispenser includes a hand-operated pump which dispenses liquid soap under pressure and which can be manufactured inexpensively. A disposable container of liquid soap is inserted in the dispenser to refill the dispenser. The pump has on its top a pan to collect liquid spilled as the disposable container is inserted. The pump and container are enclosed in a plastic housing which hinges from a plastic wall plate. A plastic latch with plastic key is used to lock the housing to the wall mounting plate. The pump mechanism uses a piston of two sections of different diameter and corresponding piston chamber of two sections of different diameter. There is an adjustable piston stroke length limiting mechanism. The piston is attached to the lever which moves the piston by means of a crossbar on the end of the piston rod. The crossbar is inserted in a slot in the lever and then turned to cross the slot.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: January 15, 1985
    Assignee: United States Borax & Chemical Corporation
    Inventors: John von Buelow, Stephen G. Hauser
  • Patent number: 4463881
    Abstract: An injector is provided for injecting hardenable liquid polymer precursors from an accumulator into a mold in a reaction injection molding process. A specially adapted plunger is employed to eject the liquid precursor from an accumulator barrel. The plunger provides a constant fluid-flow relationship between the liquid precursor inlet and the accumulator barrel during its full stroke. The plunger structure prevents the introduction of air and substantially empties the accumulator on each molding cycle.
    Type: Grant
    Filed: December 10, 1981
    Date of Patent: August 7, 1984
    Assignee: General Motors Corporation
    Inventors: William F. Dais, Antoni J. Malarz
  • Patent number: 4358027
    Abstract: A liquid dispenser apparatus including a liquid container, a pump for withdrawing metered quantities of liquid from the container and comprising a cylinder that defines inlet and outlet ports and a piston manually reciprocable between an intake stroke during which liquid is drawn through the inlet port and a discharge stroke during which liquid is expelled through the outlet port, a manual selector for adjustably fixing the maximum length of the discharge stroke, and a manual valve for selectively opening and closing the inlet and outlet ports. A pump rod is fixed to the piston and extends out of the cylinder so as to be manually operable to produce the intake and discharge strokes and the selector includes an adjustable limit mechanism that limits the length of the intake stroke and thereby the discharge stroke.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: November 9, 1982
    Inventor: Edward J. Poitras
  • Patent number: 4186852
    Abstract: An apparatus for the extrusion of thermofusible materials which are applied while being heated comprises a prefusion and feeding chamber, a heating element for the prefusion and feeding chamber, a shaft capable of rotation at the base of the chamber, the shaft while in rotation mixing the thermofusible material and an extruder comprising an extrusion screw axially connected to said shaft. The extrusion screw is located in a cylindrical tubular structure which is provided with an exit for the thermofusible material. Preferably the shaft is located at a predetermined distance from the bottom wall of the prefusion chamber whereby a passageway is formed between the bottom wall and the shaft, the chamber and the shaft being so dimensioned that the shaft during rotation forces the entire mass of thermofusible material through the passageway.
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: February 5, 1980
    Assignee: Viscodynamics Corporation
    Inventor: Luigi F. Braga
  • Patent number: 4017031
    Abstract: A miniature type, rechargeable atomizing spray mechanism including a receptacle for the liquid to be atomized, and further including a cap and axially aligned first and second pressure chambers, one of which depends within the receptacle while the other projects above the cap. A reciprocable spray head is arranged to cooperate with plural pistons, one each of which are slidably arranged in said first and second pressure chambers. Upper and lower valve members are available to control the emission of spray. The upper valve is maintained closed by a spring element, and the lower valve is opened by reciprocation of the spray head to permit withdrawal of the liquid from the container so that it may pass through a bore provided between the plural pistons and be emitted as a spray from the spray head.
    Type: Grant
    Filed: September 25, 1975
    Date of Patent: April 12, 1977
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventors: Takao Kishi, Takamitsu Nozawa