Liquid Pressure Patents (Class 222/395)
  • Publication number: 20140263437
    Abstract: An apparatus configured for displacing fluid from a fluid container comprises first and second actuators configured to be movable together until the first actuator compresses a first part of the fluid container and then moveable independently until the second actuator compresses a second part of the fluid container. Fluid containers comprise a first vessel, a second vessel, and a sealing partition preventing fluid flow from the second vessel and further include piercing means for piercing the sealing partition to permit fluid flow from the second vessel. A fluid container comprises a vessel configured to be collapsed to displace fluid from the vessel, a housing surrounding at least a portion of the vessel, and a floating compression plate movably disposed within the housing and configured to permit an external actuator to press the compression plate into the vessel to collapse the vessel and displace the fluid contents therefrom.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: GENMARK DIAGNOSTICS, INC.
    Inventors: David Walter WRIGHT, Dominic AIELLO
  • Patent number: 8814008
    Abstract: A seal assembly for a pressurised container 2 comprising a first seal portion 16 and a second seal portion 18. The first seal portion 16 is adapted to form a seal with an output section 14 of the pressurised container 2 and an end face 26 thereof, and the second seal portion 18 is adapted to form a seal with a side wall 28 of the output section 14.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: August 26, 2014
    Assignee: Reckitt Benckiser (UK) Limited
    Inventors: James Anderson, Wu Jin, Simon Woolley, Ivan Ye
  • Patent number: 8556128
    Abstract: A hand operated fluid dispenser comprised of a sealed flexible reservoir chamber containing a fluid, a channel capable of blockage by finger pressure applied to a specific position, a flexible pump chamber drawing fluid from the reservoir via this channel, and a pump cycled by external finger pressure applied to a layered array of the channel and pump chamber. This class of simple, inexpensive, disposable dispensers is particularly useful in packaging cosmetics, foodstuffs, and healthcare products. As pocketable dispensers they are popular for conveniently dispensing small amounts of stored viscous liquids easily damaged when exposure to the atmosphere, a condition where sealed reservoirs coupled with airless pumps work together successfully preventing product contamination, deterioration and loss.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: October 15, 2013
    Inventor: William A. Harper
  • Patent number: 8187574
    Abstract: The present invention is directed to an intermittent aerosol dispensing device, for application of a product to skin of a human being, where the aerosol dispensing device includes an intermittent injection mechanism located downstream of an aerosol valve of an aerosol dispenser and responsive to a pushbutton of the aerosol dispensing device, and the aerosol dispensing device further includes a pressure chamber. A ratio of an injection time to a stop time is set, in said intermittent injection mechanism, to 0.1 to 5.0, so that when said aerosol valve is opened a cycle of injection and stop is performed 1 to 25 times per second in order to obtain a cooling and/or massage effect on the skin.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: May 29, 2012
    Assignee: Dazio Corporation
    Inventors: Satoshi Mekata, Hiroshi Fujio
  • Publication number: 20100328374
    Abstract: A liquid dispenser includes a liquid supply channel including an exit having a cross sectional area, a liquid return channel, and a liquid dispensing channel including a cross sectional area and an outlet opening. The outlet opening includes an end that is adjacent to the liquid return channel. The cross sectional area of a portion of the liquid dispensing channel that is located at the end of the outlet opening is greater than the cross sectional area of the exit of the liquid supply channel. A liquid supply provides liquid under pressure from the liquid supply channel through the liquid dispensing channel to the liquid return channel. A diverter member is selectively actuatable to divert a portion of the liquid toward outlet opening of the liquid dispensing channel.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Inventors: Yonglin Xie, Joseph Jech, JR.
  • Publication number: 20100185174
    Abstract: Certain embodiments disclosed herein relate to compositions, methods, devices, systems, and products regarding frozen particles. In certain embodiments, the frozen particles include materials at low temperatures. In certain embodiments, the frozen particles provide vehicles for delivery of particular agents. In certain embodiments, the frozen particles are administered to at least one substrate.
    Type: Application
    Filed: October 30, 2009
    Publication date: July 22, 2010
    Inventors: Edward S. Boyden, Daniel B. Cook, Roderick A. Hyde, Eric C. Leuthardt, Nathan P. Myhrvold, Elizabeth A. Sweeney, Lowell L. Wood, JR.
  • Publication number: 20100059138
    Abstract: A fixed and/or stationary modular unit consists of a hydraulic fluid tank and a pressurization pump. A compressed gas transportation system consists of a set of cylinders. Each cylinder has a charging port and a dispensing port. A valve is connected at the dispensing port of each cylinder. Each of the valves at the dispensing ports of the cylinders are connected to one another. After an idle period of dispensing activity, the valves on the dispensing ports of the cylinders are opened and compressed gas is bled from one of the cylinders into at least one of the other cylinders in the set until the at least one of the other cylinders reaches a desired dispensing pressure. Hydraulic fluid is pumped from the tank into the cylinder being bled from to maintain a substantially constant pressure within the cylinder.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 11, 2010
    Applicant: NEOgas Inc.
    Inventors: ZhiQiang Shi, David W. Pang
  • Patent number: 7650830
    Abstract: A system and method for the enhancement or fortification of a potable fluid. The system is adapted to fit on existing supplies of potable fluids, such as faucets, to permit the selective introduction of beneficiating materials into the liquid supply. The system includes interchangeable, replaceable cartridges. In one aspect of the invention, the system introduces a constant concentration of beneficiating material into the water supply. In another aspect, the system has the ability to permit discrete or continuously variable concentrations of the beneficiating material. The system may also include a water filtration device that may be operated either independently or cooperatively with the system.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: January 26, 2010
    Assignee: Miracle Spring LLC
    Inventor: Gary Lessis
  • Publication number: 20090294470
    Abstract: A fixed and/or stationary modular unit consists of a hydraulic fluid tank, a variable frequency drive consisting of a variable frequency controller, a variable frequency motor, and a pressurization pump. A compressed gas transportation system consists of a cylinder or set of cylinders. Each cylinder has a charging port and a dispensing port. A pair of valves are located at each charging port of each cylinder, with one valve connected to an incoming hydraulic fluid line and the other valve connected to a hydraulic fluid return line. A valve is connected at the dispensing port of each cylinder. As gas is dispensed from cylinders, hydraulic fluid is pumped from the tank by the variable frequency drive into the cylinder at a rate substantially equal to the dispensing rate of the compressed gas to maintain a constant pressure within the cylinder.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: NEOgas Inc.
    Inventor: Steven W. Lampe
  • Patent number: 7610943
    Abstract: Systems and methods are provided for dispensing portions of viscous material, such as the viscous materials used to form crystals of membrane proteins or soluble proteins. A liquid under pressure is used to divide the viscous materials into portions. The divided viscous material portions can optionally be deposited into are receptacle.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: November 3, 2009
    Assignee: Emerald Biosystems, Inc.
    Inventors: Peter Nollert, Alexandrina Muntianu, Robert C. Haushalter, Dean Allyn Hopkins, Jr.
  • Publication number: 20090223745
    Abstract: A chain lubrication application tool is provided, the tool having an L-shaped body and a swivel fitting attached to the body. The L-shaped body has a top member and a side member, the top member and side member forming the L-shaped body. The swivel fitting is attached to the top member of the L-shaped body and has an inlet operable to accept lubrication from a lubricant dispensing container and an outlet to supply the lubrication to a drive chain that can be located below the top member of the L-shaped body.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 10, 2009
    Inventor: Peter J. Marcucci
  • Publication number: 20080135117
    Abstract: A dispenser for delivering beverages (e.g. beer) including a main body (20), an inlet (21), an outlet (23) and a piston stop valve (23). In use, the piston moves from a first closed position (A) to a second position (B) where fluid is permitted only through a restricted aperture (31) provided in a collar (27) that extends around the piston. The restricted flow path causes turbulence and hence foam formation on the beverage. In a third position (C), flow is completely open from the inlet to the outlet.
    Type: Application
    Filed: June 30, 2005
    Publication date: June 12, 2008
    Applicant: DIAGEO IRELAND
    Inventors: Guy Robert Hansson, Paul Clifford Smith, John Justin Walshe
  • Publication number: 20080105700
    Abstract: A system for dispensing an adhesive comprises a first dispenser, a second dispenser, and a conduit. The first dispenser contains an adhesive. The second dispenser comprises a fluid. The first dispenser and second dispenser are each in fluid communication with the conduit. The conduit has an opening. One or both of the first dispenser or the second dispenser is operable to dispense adhesive or fluid through the opening of the conduit. The system may be used to apply adhesive to the tissue of a patient in a precise and controlled manner.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 8, 2008
    Inventors: James Walden Voegele, Mark S. Ortiz, Christopher W. Widenhouse, Frederick E. Shelton
  • Publication number: 20080028802
    Abstract: The present invention relates to a receiver for a laundry product having a tap, laundry appliances comprising one or more receivers for one or more laundry products each having a tap and methods thereof.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 7, 2008
    Inventors: Glenn Thomas Jordan, Jeremy Todd Kempin
  • Publication number: 20070235080
    Abstract: A fluid flow control device (26, 28) comprising a guide member (30) to guide a fluid passing through a duct (22, 24, 76), the guide member (30) being movable between first and second positions; and an urging arrangement (32) capable of providing an urging force (F1) to urge the guide member (30) towards the first position, characterised in that the urging arrangement (32) is a resilient torsion bar that is formed so as to allow the guide member (30) to be moved towards the second position by a pressure force (F2) exceeding and opposite to the urging force (F1), the pressure force (F2) being provided by a pressure difference across the guide member (30).
    Type: Application
    Filed: March 8, 2007
    Publication date: October 11, 2007
    Applicant: ROLLS-ROYCE PLC
    Inventor: Barry N. Hocking
  • Patent number: 7168459
    Abstract: A feed bag includes a body bounding a compartment, the compartment being adapted to hold a feed material. The body has a first end with an outlet formed thereat and an opposing second end. A vent port is formed on the body so as to communicate with the compartment. In one embodiment a filter is coupled with the vent port. A fluid port is formed on the body so as to communicate with the compartment. The fluid port is adapted to receive a fluid line for delivering a fluid into the compartment of the body.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 30, 2007
    Assignee: Hynetics LLC
    Inventors: Kenneth L. Bibbo, Gregory P. Elgan, Michael Goodwin, Bradley H Buchanan, Jim A Austin
  • Patent number: 6789699
    Abstract: An apparatus for containing a fluid, said apparatus comprising (d) at least two internal chambers, (f) a fluid product line leading from each chamber to (g) a junction for product lines from at least two of said chambers to produce a mixed product, (h) means for delivering a desired ratio of fluid products in said mixed fluid product, (i) an exit line from said junction for said mixed fluid product, and (j) means for reversibly closing said exit line.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: September 14, 2004
    Assignee: BP Oil International Limited
    Inventors: Alisdair Quentin Clark, Harry Read
  • Patent number: 6681959
    Abstract: Shutting off a liquid supply line (2, 3) intended to convey foam precursors into a polyurethane foam mixing and dispensing gun, gives a better result when a system for shutting off and relieving the pressure is inserted in said supply line. This system enables to annul the pressure at the closed mouth of the gun by relieving the pressure in the supply line (2, 3).
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: January 27, 2004
    Assignee: N.V. Soudan Patrimonium and Consulting
    Inventor: Freddy Delphin Soudan
  • Patent number: 6581801
    Abstract: A soap dispensing system includes a soap dispensing fixture and first and second sources of soap connected to the fixture. Each of the sources of soap includes a closed container and a collapsible soap container positioned within the closed container. Each of the collapsible soap containers is connected to the fixture. There is a source of fluid pressure and control elements connected between the source of fluid pressure and each of the first and second closed containers. The application of pressure, from the source, as controlled by the control elements, will apply fluid pressure to either the first or second collapsible soap container to cause it to dispense soap to the soap dispensing fixture.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: June 24, 2003
    Assignee: Sloan Valve Company
    Inventor: Jerome M. Gauthier
  • Patent number: 6571989
    Abstract: A metering device for releasing water and detergent has a three-way connector, a water quantity adjustment device, a detergent quantity adjustment device, and a detergent bottle. The three-way connector has a three-way channel, a first end connected to the detergent quantity adjustment device, a second end connected to the water quantity adjustment device, and a third end connected to a water outlet hose. The water quantity adjustment device has a swivel ring and a water amount control ring engaging with the swivel ring. The detergent quantity adjustment device has a rotating ring and a detergent amount control ring engaging with the rotating ring. The detergent bottle engages with the detergent amount control ring.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: June 3, 2003
    Inventor: Zhen-Yuan Jiang
  • Patent number: 6520186
    Abstract: A reshapable hair styling composition comprising at least one silicon-containing polycondensate chosen from polyurethanes, polyureas, and polyurethane-ureas, such as a polycondensate that is functionalized with at least one hydrolyzed or hydrolyzable silyl group, wherein said composition provides a reshapable effect.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: February 18, 2003
    Assignee: L'Oreal
    Inventors: Isabelle Rollat, Henri Samain
  • Patent number: 6419166
    Abstract: A dispenser for introducing additive into a liquid stream comprises a housing unit having a flow-through passage forming a pathway for the liquid stream. A seating on the housing is provided for receiving a receptacle. The seating includes a reservoir for holding the additive. A conduit extends between the seating and the flow-through passage through which the additive can flow. A valve is also provided for selectively controlling the flow of the additive in the conduit.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: July 16, 2002
    Inventors: Stan F. Brzezinski, Elizabeth Brzezinski
  • Patent number: 6325255
    Abstract: In a fluid flow restrictor, the amount of fluid flow restriction increases in response to higher dispensing system pressures and decreases in response to lower dispensing system pressures. In this manner, a relatively consistent flow rate of fluid being dispensed can be maintained regardless of fluctuations in system pressure. Variable resistance is provided by changing the length of the fluid flow path or by changing the cross-sectional area, and, thus, the volume of the fluid flow path, or by changing both the length and the cross-sectional area of the fluid flow path.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: December 4, 2001
    Assignee: Quoin Industrial, Inc.
    Inventors: Michael L. Lane, James R. Gemmell
  • Patent number: 6305619
    Abstract: A portable gun for discharging highly pressurized fluid material such as tear gas or capsicum spray comprises an elongate refillable pressure vessel (8) for storing under pressure fluid material to be discharged. A discharge barrel (4) is coupled to the pressure vessel via a valve assembly (6) and through which the material is discharged when the valve assembly is opened by actuation of a trigger (38). The axis of the barrel is orientated in the same direction as the axis of the pressure vessel, and the gun is supported from the body of a user by a sling so that the gun can be supported with the axes of the pressure vessel and barrel generally horizontally directed.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: October 23, 2001
    Assignee: Westfire Developments PTY LTD
    Inventor: Philip Patrick Thurn
  • Patent number: 6116466
    Abstract: A dispenser is provided for dispensing through at least one outlet at least two products. The dispenser includes a container for containing a first product, and a dispensing member extending from the container. The dispensing member is capable of being actuated to permit flow of the first product from the container. The dispenser is provided with an actuation control element. The actuation control element controls actuation of the dispensing member and defines a reservoir for containing a second product, and first and second flow paths in flow communication with at least one outlet of the dispenser. The first flow path includes at least one passage in flow communication with the dispensing member for conveying the first product, and the second flow path is in flow communication with the reservoir for conveying the second product. The reservoir is configured so that pressure of the first product flowing from the container causes flow of the second product through the second flow path.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: September 12, 2000
    Assignee: L'Oreal S.A.
    Inventor: Jean-Louis H. Gueret
  • Patent number: 6019196
    Abstract: Device for precise replacement of liquids in a mechanism includes at least one bag which can be filled with liquid to be delivered precisely to the mechanism or which can hold used liquid. The bag(s) has/have flexible boundaries and may be provided in a housing.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: February 1, 2000
    Assignee: Theodore W. Selby
    Inventors: Theodore W. Selby, Christopher John Rudy
  • Patent number: 5499750
    Abstract: The spraying device of the present invention includes a container having a hollow interior, a threaded open top, and a closed bottom. The enclosed bottom includes an orifice that is adapted to receive a pressurized fluid line. A flexible bladder is inserted through the open top into the container. A cap is adapted to be removably secured to the open top of the container. Extending through the cap is a through hole which receives a conduit that extends from the interior of the bladder to the exterior of the container. A spraying mechanism is attached to the exterior end of the conduit. Utilization of the device occurs when fluid from the pressurized fluid line enters the interior of the container exerts pressure on the bladder to cause the bladder to contract and force the fluid located inside to escape via the conduit and spraying mechanism.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: March 19, 1996
    Inventor: William J. Manifold
  • Patent number: 5336057
    Abstract: A micropump comprises a pump body member for defining a tank chamber holding liquid, a liquid inlet portion, a liquid outlet portion for discharging the liquid medium in the tank chamber, a liquid outlet portion for discharging the liquid medium in the tank chamber, and an actuator for reducing a volume of the tank chamber. The actuator is formed of a liquid-absorptive polymer gel.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: August 9, 1994
    Assignee: Nippon Densan Corporation
    Inventors: Toshio Fukuda, Shinobu Hattori, Shigenobu Nagamori
  • Patent number: 5158210
    Abstract: An improved condiment dispensing system for delivering a measured quantity of condiment at a constant flow rate. The device comprises a pump which is fluidly connected to a condiment source and a dispensing apparatus. The dispensing apparatus includes a valve assembly which is connected to both a pressurized fluid source and to the pump whereby actuation of a valve assembly contained on the surface of the dispensing apparatus causes a measured quantity of condiment to be dispensed from an outlet nozzle contained thereon.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: October 27, 1992
    Inventor: Benjamin R. Du
  • Patent number: 5058768
    Abstract: A fluid-driven proportioning pump for dispensing precise volumes of at least three different fluids includes a drive cylinder housing a correspondingly formed drive piston which divides the drive cylinder into first and second drive fluid chambers and is propelled in a reciprocating motion by a pressurized drive fluid. Each face of the drive piston is provided with projecting porportioning pistons which extend into proportioning cylinders that open into each drive fluid chamber and being directed toward the drive piston. An over-center mechanis triggered by movement of the drive piston at the extremes of the strokes for its reciprocating motion operates valving which admits the pressurized drive fluid into alternate of the drive fluid chambers. The over-center mechanism is activated by loop springs or preferably by pairs of C-shaped springs, and is housed entirely within the drive cylinder.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: October 22, 1991
    Assignee: Fountain Technologies, Inc.
    Inventor: William H. Lichfield
  • Patent number: 4901890
    Abstract: An automatic additive dispenser and system includes a container adapted to be releasably attached to a housing and having a rupturable seal along with means for rupturing the seal and enabling additive to enter a flow of water through the housing, in response to initial water flow through the housing. Additives contained in the bottle are prevented from entering the system before the seal is ruptured, thus enabling predisposition of the bottle in the system for later dispersement of additive without premature leakage of the additives into the system.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: February 20, 1990
    Inventor: Michael B. Mivelaz
  • Patent number: 4768712
    Abstract: A selective liquid fertilizer blending system and apparatus associated with golf courses utilizing automatic irrigation systems to irrigate the various species of turf grasses used on fairways, tees, greens and other areas; being adapted to selectively and continuously blend in a "spoon feeding" manner the agronomically correct ratios of liquid fertilizer/irrigation water. The desideratum is a uniformly blended mixture of liquid fertilizer and irrigation water in the agronomically correct spoon-feeding ratios delivered in an aqueous solution to each specific turf grass species used on the separate use areas of the golf course in a continuous manner through sprinkler heads or other irrigation devices.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: September 6, 1988
    Assignee: National Turf Systems, Inc.
    Inventor: B. Joe Terrell
  • Patent number: 4698983
    Abstract: A system for the emptying, replenishing and testing of oil maintained within an oil reservoir of a crank case of a compressor unit having an external casing for purposes of housing the compressor motor wherein the interior of the casing is maintained under a positive pressure due to refrigerant entering the casing as it returns from the evaporator. An access valve is disposed on a free end of a conduit having the opposite end thereof disposed in direct access to oil within the oil reservoir. A valve opening structure, when applied to the access valve will position it in an open or flow allowing position, allowing the oil within the casing to pass through the conduit and out through the access valve due to the positive pressure within the casing. The oil may be replaced by securing a liquid pump in fluid communication to the conduit so as to force the access valve open. Upon the pressurized input, from the pump, oil flows back into the oil reservoir against the internal pressure within the casing.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: October 13, 1987
    Inventor: Ruben Hechavarria
  • Patent number: 4582223
    Abstract: An apparatus and method for connecting a one-way disposable syrup package and associated dispensing attachment for use in a post-mix beverage dispenser system are described. The dispensing attachment includes a threaded socket for operatively engaging the threaded portion on the neck of a container constituting the syrup package, a cutting edge for puncturing a sealing member over the discharge end of the container, an inlet for supplying a compressed fluid into the container and an outlet for propelling the syrup concentrate toward the discharge opening of the container. The dispensing attachment is screwed onto the threaded portion of the container neck, preferably while the container is in an upright position until the cutting edge punctures the sealing member. Suitable conduits are then connected to the inlet and outlets of the attachment to connect the syrup package to the post-mix beverage dispenser system.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: April 15, 1986
    Assignee: The Coca-Cola Company
    Inventor: Susumu Kobe
  • Patent number: 4515293
    Abstract: A dispenser for dispensing predetermined amounts of toothpaste or other material from a collapsible tube operates by subjecting the tube to hydraulic pressure thereby to squeeze the tube. The dispenser comprises a housing (10) having a first chamber (11) to hold the tube, a removable cap (18) formed with an opening from which the nozzle of the tube projects, a second chamber (12) to hold a reservoir of liquid and a slidable cap (31) movable by a spring (35) to cause a piston (30) to draw liquid from the reservoir into a pump chamber (40) through a one-way valve (28) and movable manually to cause the piston to force liquid from the pump chamber through a one-way valve (27) into the first chamber which is already filled with liquid, thereby to squeeze the tube.
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: May 7, 1985
    Inventors: Henry R. Hill, Christine R. Hill
  • Patent number: 4391390
    Abstract: A chemical-mixing and dispensing apparatus for providing a volume of a chemical mixture to a dispensing location includes a suitably connected and monitored water main flow coupled to one inlet of a Tee fitting, a fixed-volume container having therein a liquid detergent concentrate, the container being coupled to the other inlet of the Tee fitting. The outlet of the Tee fitting is placed in flow communication with a chemical mixture holding tank along one branch and with a control tank along another branch. The chemical mixture holding tank has an output line which is monitored by an electrically timed solenoid valve for controlling the dispensing of the contents of the holding tank to a spray nozzle. Flow to the control tank is monitored by a pressure regulator such that the pressure ceiling within the control tank remains at a level which is below the pressure ceiling of the holding tank.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: July 5, 1983
    Inventor: Arthur G. Howard
  • Patent number: 4383622
    Abstract: An improved sanitary washbottle kit assembly comprising a specially shaped molded two piece dispensing and sealing stopper equipped with a dispensing tube and resilient bulb adjacent the neck of the flask of the washbottle. The molded two piece dispensing and sealing stopper is formed of resilient compressible material, one piece being an outer piece which covers the open top of the flask extending downwardly over the neck and is shaped with a projecting ledge at a height a short distance below the top of the flask to form a horizontal channel extending between the outside of the flask and the inside of the flask while the second piece is a molded inner stopper formed with a flange fitting into a counterbore of the outer stopper, this flange counterbore interfitting providing a single compressible resilient closure unit. The inner stopper piece may be adhered by adhesive to the inner stopper piece.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: May 17, 1983
    Inventor: Durward O. Guth
  • Patent number: 4362122
    Abstract: A fluid dispensing system for uniformly dispensing relatively small quantities of one or more coating fluids. Each coating fluid is disposed in a vertically oriented cylindrical container and divided from a Newtonian drive fluid by a split floating plug. The drive fluid is advanced into the cylinder by a positive displacement pump at a constant rate. The split floating plug facilitates degassing of the fluid and allows it to be substantially completely dispensed at constant rate. A plurality of containers may be connected in a battery to facilitate a rapid change in the compositional parameters of a multiple layer coating system.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: December 7, 1982
    Assignee: Polaroid Corporation
    Inventor: Edward J. Choinski
  • Patent number: 4111202
    Abstract: An osmotic system for delivering a beneficial agent is disclosed. The system comprises a wall surrounding an agent compartment and an osmagent compartment separated by a film and has a passageway through the wall for delivering agent from its compartment. The wall is formed of a material permeable to the passage of an external fluid and impermeable to the passage of agent and osmagent. The film is formed of a material impermeable to the passage of agent and osmagent and movable from an original to an expanded state. The agent compartment contains an agent that is soluble in the fluid and exhibits an osmotic pressure gradient across the wall against the fluid, or the compartment contains an agent that has limited solubility in the fluid and exhibits a limited osmotic pressure gradient across the wall against fluid. The osmagent compartment contains an osmagent that exhibits an osmotic pressure gradient across the wall against the fluid.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: September 5, 1978
    Assignee: Alza Corporation
    Inventor: Felix Theeuwes
  • Patent number: 4111203
    Abstract: An osmotic system for delivering a beneficial agent is disclosed. The system comprises a wall surrounding a compartment and has a passageway through the wall for delivering agent from the compartment. The wall is formed of a material permeable to the passage of an external fluid and impermeable to the passage of agent. The compartment contains an agent that is soluble in the fluid and exhibits an osmotic pressure gradient across the wall against the fluid, or the compartment contains an agent that has limited solubility in the fluid and exhibits a limited osmotic pressure gradient across the wall against the fluid. The compartment also contains means for increasing the amount of agent delivered from the system. The means comprises a film surrounding an osmagent with the film formed of a material permeable to fluid, impermeable to osmagent and movable from an initial to an expanded state.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: September 5, 1978
    Assignee: Alza Corporation
    Inventor: Felix Theeuwes
  • Patent number: 4111201
    Abstract: An osmotic system for delivering an agent is disclosed. The system comprises a wall surrounding a compartment and has a passageway through the wall for delivering agent from the compartment. The wall is formed of a material permeable to the passage of an external fluid and impermeable to the passage of agent. The compartment contains an agent that is soluble in the fluid and exhibits an osmotic pressure gradient across the wall against the fluid, or the compartment contains an agent that has limited solubility in the fluid and exhibits a limited osmotic pressure gradient across the wall against the fluid. The compartment also contains a suspending agent and a delivery member for increasing the amount of agent delivered from the system. The delivery member comprises a semipermeable film surrounding an osmotically effective compound and it is able to increase in volume over time.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: September 5, 1978
    Assignee: Alza Corporation
    Inventor: Felix Theeuwes
  • Patent number: 3985868
    Abstract: Asthma is effectively treated by inhalation of powder dispensed from an aerosol suspension of powdered N,N-diethyl-4-methyl-1-piperazinecarboxamide pamoate, which is dispersed as a fine powder, essentially below 10 microns in particle size, which gives an improved ratio of absorption in the lungs as compared to systemic absorption.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: October 12, 1976
    Assignee: American Cyanamid Company
    Inventors: Howard Seebree Corey, Jr., William Charles Barringer, Lloyd Frank Hansen
  • Patent number: 3937400
    Abstract: Apparatus for spraying a predetermined amount of paint, especially electroconductive paint as used for coating metal anodes, which comprises in combination an electrostatic spray gun and a paint delivery device for the gun which operates on a single displacement diaphragm principle.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: February 10, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventor: Janusz Josef Henryk Krause