Fluid Pressure Patents (Class 222/394)
  • Patent number: 4976367
    Abstract: A container for food or the like comprises a cylindrical wall enclosed by a top and a bottom lid. The cylindrical wall has a slight angle, thereby being wider at the top lid than at the bottom lid. The bottom lid contains a round vent hole having its lip drawn over in the direction of the interior of the container. An air-tight vent seal tab covers the vent hole. With the top lid removed, the container is inverted so that the bottom lid is facing upward, and then the vent seal tab is removed. A common drinking straw is inserted into the vent hole and is sealed therein by the vent hole lip. Mouth pressure is applied to the drinking straw. This pressure and the force due to gravity, together, force the contents of the container to start to move downward toward the open top lid. As initial motion occurs the contents looses contact with the sidewall of the container because of the slight angle and thereby is easily removed.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: December 11, 1990
    Inventor: Raphael A. Hoefler
  • Patent number: 4972975
    Abstract: An automatic spray can for spraying liquids is described, comprising a hong (1), in which an energy store (2), an electric motor (3) and a pump (6) for producing compressed air with a suction joint (7) and a pressure joint (8) are located, a product container (9) in engagement with the housing (1), with a spray head (14) including a spray nozzle (15) arranged at its top aperture (18), and an air feed pipe (13) between the pressure joint (8) of the pump (6) and the interior of the product container (9).To make such a spray can smaller and lighter, and to enable a constant flow of spray jet with a uniform particle size to be produced with convenient operation, it is proposed according to the invention that the product container (9) be arranged as an extension of the housing (1), and the pump (6) be in the form of a vane type rotary pump, arranged at the upper end of the housing (1), with the air feed pipe (13) preferably extending over the whole length of the container.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: November 27, 1990
    Assignee: OECO-Tech Entwicklung & Vertrieb von Verpackungssystemen GmbH
    Inventor: Wolfgang Fuhrig
  • Patent number: 4966310
    Abstract: A sealable, collapsible storage module for storing and shipping matter such as grain and plastic resins is disclosed. The module includes a body having a bottom portion and a flexible, collapsible upper portion. The flexible, collapsible upper portion is sealed to the bottom portion to define a sealable storage chamber for storing matter. The body also defines at least one sealable port in communication with the storage chamber through which matter is conveyed. The module also includes a plurality of internal support lines extending across the inside of the storage chamber wherein each support line is attached at its ends to opposing sides of the upper body portion. The plurality of support lines provides internal support for the upper portion to prevent it from rupturing when it is filled with matter such as grain.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: October 30, 1990
    Inventor: Gerald P. Hawkins
  • Patent number: 4958757
    Abstract: An apparatus and a method is disclosed for an improved ferrule for sealing with an annular bead of a container. The ferrule comprises a peripheral rim having an inner peripheral region and an outer peripheral region. The outer peripheral region of the peripheral rim includes a portion thereof having a contour different from an outer bead surface of the annular bead of the container. The different contour portion of the outer peripheral region inhibits the inner peripheral region of the peripheral rim from fully contacting an inner bead surface of the annular bead of the container when the ferrule is disposed upon the container. The different contour portion of the outer peripheral region is deformed when the ferrule is sealed to the annular bead of the container to have substantially the same contour as the outer bead surface of the annular bead to provide a sealing engagement between the ferrule and the container.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: September 25, 1990
    Assignee: Pittway Corporation
    Inventor: James E. Greenebaume, II
  • Patent number: 4930686
    Abstract: A portable sprayer which has a resealable closure, a dispensing valve and a pressure-responsive filling valve attached to a receptacle. As the receptacle is filled with fluid through the valve, air which is entrapped in the receptacle pressurizes the container to facilitate dispensing the fluid. During filling, the inlet valve closes if the pressure of the liquid source to which the sprayer is connected exceeds that within the container by a predetermined amount. The inlet valve also closes when the filling hose is disconnected from the container in order to close the container.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: June 5, 1990
    Assignee: Root-Lowell Manufacturing Company
    Inventor: Garry L. Ellison
  • Patent number: 4923097
    Abstract: A solvent-based (non-aqueous) aerosol paint containing dimethyl ether as solvent or solvent and propellant and a film-forming paint resin formulation is disclosed.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: May 8, 1990
    Assignee: E. I. DuPont De Nemours and Company
    Inventor: Philip L. Bartlett
  • Patent number: 4923095
    Abstract: An expandable pouch for applying a pressure to a material to be dispensed from a container wherein two sheets of a fluid impervious material are permanently joined together at their edges and divided into a plurality of compartments by semi-permanent peelable strips. One of the compartments is divided into sub-compartments with fluid communication being provided between two sub-compartments. One of a two component chemical gas generating system is located in each of the two sub-compartments so that when the pouch is inverted, the chemicals combine to start generating gas to force open the peelable strips.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: May 8, 1990
    Assignee: Adolph Coors Company
    Inventors: Jan L. Dorfman, Larry M. Dugan, David C. Young, Mark A. Willcoxen
  • Patent number: 4919304
    Abstract: A cylinder assembly which may incorporate a dip tube when used, for example, as a vapor transfer device of electronic grade organometallic liquids to a deposition system but can also be used for storing and dispensing liquids and gases. In case of vapor transfer, the device preferably includes one self-closable filling port inlet, one gas inlet valve and one outlet vapor valve. The dip tube extends downwardly into a cylindrical container.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: April 24, 1990
    Assignee: American Cyanamid Company
    Inventor: Marion Markowicz
  • Patent number: 4899914
    Abstract: Described is a method, and resulting product, for producing a sterile preservative-free areosol contact lens solution comprising; aseptically filling a pre-sterilized aerosol container with a contact lens solution preserved with sufficient hydrogen peroxide; aseptically introducing into the container means, such as a catalyst, for converting the hydrogen peroxide into inert or inactive substances one of which is a suitable propellant; and sealing and storing the container for a time sufficient to complete the inactivation of the hydrogen peroxide and creation of the suitable propellant.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: February 13, 1990
    Assignee: CIBA-Geigy Corporation
    Inventors: Erwin Schweigl, Thomas P. Hayes, Dusan Kljajic, Rolf Jellositz
  • Patent number: 4880151
    Abstract: A pressurized spray paint container having a spray control nozzle at the top with an internal transport tube attached to the nozzle and extending to the bottom of the container. The container bottom is bulged outward so that the container cannot be rested on its bottom, but rather must be stored generally horizontal whereby the paint solids in the container are away from the inner end of the tube.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: November 14, 1989
    Inventor: Willard W. Shepherd
  • Patent number: 4874116
    Abstract: An apparatus for blending two gases together in precisely adjustable proportions. The apparatus includes a mechanically adjustable, blending subassembly adapted to receive the first gas at a predetermined pressure and a one to one force balanced pneumatic relay which is operated by the first gas and which meters the flow of the second gas to the blending subassembly at a pressure substantially equal to the pressure of the first gas being supplied to the blending subassembly.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: October 17, 1989
    Assignee: McDantim, Inc.
    Inventors: Merton R. Fallon, Thomas W. Clements
  • Patent number: 4870805
    Abstract: A flexible gas-tight, hermetically sealed pouch (11), in which a likewise closed cartridge (8) filled with a propellant in the liquid phase is disposed, is introduced into the outer envelope (1) of a container (1a), and the container (1a), which includes a valve (7) for distributing fluid (13) contained in it or introduced via the valve (7) is plugged. The cartridge (8) used has a wall capable of degrading at least partially from simple contact with the propellant, until the cartridge opens, within a period of time at least equal to that necessary to assure the packaging and closure of the container (1a ). The propellant then spreads within the pouch (11), changing at least in part to the gaseous phase, at a pressure suitable to assure the dispensing of the fluid (13). By the judicious choice of the characteristics (type, thickness) of the degradable zone of the cartridge (8), heating or other more complicated or expensive means proposed heretofore for putting the container under pressure are avoided.
    Type: Grant
    Filed: June 7, 1988
    Date of Patent: October 3, 1989
    Assignee: L'Oreal
    Inventor: Bruno Morane
  • Patent number: 4867348
    Abstract: A disposable package comprising a plastic container secured to plastic protective and support members so that the container may be supported in a vertical position during shipment and commercial storage and in a horizontal position, such as refrigerator shelf, for consumer use. In the preferred embodiment, the container contains a desired quantity of beer equal to a conventional case thereof. The container is provided with plastic dispensing apparatus having flow permitting apparatus movable between at least two positions so that in the first position there is no passageway between the fluid inside the container and the outside of the container and in a second position wherein the fluid in the container may be readily dispensed in separate portions over a period of time without degradation of the quality of the remaining portions of the fluid in the container.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: September 19, 1989
    Assignee: Adolph Coors Company
    Inventor: Dorfman, Jan L.
  • Patent number: 4856684
    Abstract: The valve is for use on a gas pressurized liquid food dispensing container or can, such as a whipped cream dispensing can. The valve includes a dish-shaped, preferably metal can top connector having a vertical opening up through which extends the vertical rod portion of a valve stem disposed within a passageway in a vertical tubular portion of a rubber grommet. The upper end of the grommet engages the lower end of an expanded head on the stem rod to hold the stem yieldingly in place in assembly. The horizontal lower end of the grommet abuts the lower end of the connector and the upper end of the horizontal base of the valve stem so as to releasably seal the connector opening therewith. An open-topped vertical cover is releasably secured by the grommet upper tubular portion, as by ribs or detents or threading and can be tilted sideways with the grommet upper tubular portion to tilt the stem base from its sealing position to release liquid from the can.
    Type: Grant
    Filed: March 21, 1988
    Date of Patent: August 15, 1989
    Inventor: William Gerstung
  • Patent number: 4828149
    Abstract: A dispensing device for dispensing measured doses during each dispensing cycle. A fluid tight bottle is provided with a well at its bottom. A hollow shell fits in the well and includes an opening permitting flow of material from the bottle into the shell. A tubular stem extends from the shell through the top of the bottle and terminates in a dispensing spout. Different embodiments provide different arrangements for supplying air to an air chamber in the top of the bottle so that pressure within the bottle can equalize at the end of each dispensing cycle. If the bottle is not a squeeze bottle, air is supplied to the bottom of the bottle to displace the liquid in the shell which is dispensed through the stem upon inversion of the bottle. Additional embodiments of the invention are specially constructed to dispense powders and to allow the dosage of each dispensing cycle to be adjusted.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: May 9, 1989
    Inventor: Kenneth D. Hester
  • Patent number: 4823989
    Abstract: A transportable vessel is provided formed by enclosing wall structure. Two spaced apart bulkheads separate the vessel into three compartments defined as a center compartment and two end compartments for carrying dry flowable material. The wall structure of the vessel at its upper end has at least three openings extending therethrough leading to the three compartments respectively for receiving dry flowable material into the three compartments. Three lids are provided for closing the three opening respectively whereby the vessel including the three compartments may be pressurized with air. A passageway extends through the upper portion of each of the bulkheads and a filter extends across each of the passageways for blocking the flow of dry flowable material through the passageways but allowing the flow of air therethrough. At least three separate material discharge hoppers are coupled to the wall structure of the vessel at its lower end for removing dry flowable material from each of the compartments.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: April 25, 1989
    Assignee: J&L Tank, Inc.
    Inventor: Allan Nilsson
  • Patent number: 4819842
    Abstract: A system for dispensing a radiation-curable adhesive substance employs a shutter for controlling the period of irradiation. A hand-held assembly, remote from the control unit of the system, permits convenient placement and curing of the adhesive deposit utilizing, respectively, a syringe for the containment of the substance and a light guide for transmitting the actinic radiation to the work site.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: April 11, 1989
    Assignee: Dymax Corporation
    Inventor: Richard A. Westervelt
  • Patent number: 4813576
    Abstract: An apparatus and method is disclosed for an improved mounting cup for sealing with a container of an aerosol device. The container includes an annular bead extending about an opening in the container with the annular bead defining an internal surface contour having a generally partially circular cross-section. A mounting cup comprising a peripheral rim is formed for sealing with the annular bead of the container. The peripheral rim has an inner region contour substantially different in shape from the inner surface contour of the annular bead of the container. The inner region contour of the peripheral rim engages with the inner surface contour of the annular bead to allow only a portion of the peripheral rim of the mounting cup to contact the annular bead of the container when the mounting cup is disposed on the container.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: March 21, 1989
    Assignee: Pittway Corporation
    Inventor: James E. Greenebaum, II
  • Patent number: 4782982
    Abstract: A portable sprayer which has a resealable lid and a one-way valve attached to a receptacle. As the receptacle is filled with fluid through the one-way valve, air which is entrapped in the receptacle pressurizes the container to facilitate dispensing the fluid.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: November 8, 1988
    Assignee: Root-Lowell Manufacturing Company
    Inventor: Garry L. Ellison
  • Patent number: 4773571
    Abstract: A package (10) for dispensing a fluid (26) in the package under gas pressure has a biaxially oriented polyethelene terepthalate bottle (12) with a neck (14). A dispensing head (22) is attached to the neck (14). A normally closed valve (16) is mounted in the neck and has a housing (50) sealed to the inside surface of the neck (14). The housing (50) has a syphon flange (54). An integral structure (56) having a spring (58) at one end and a poppet (60) at a second end rests on the syphon flange (54). The housing has an opening (48) above the syphon flange 54). The integral structure (56) extends between the syphon flange (54) and the opening (48). The integral structure (56) is dimensioned so that the spring (58) is compressed to bias the poppet end of the integral structure (56) into sealing engagment around the opening (48). The dispensing head (22) has an integral diaphragm (42) and rods (52) and (46) extending above and below the diaphragm (42).
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: September 27, 1988
    Assignee: McKesson Corporation
    Inventors: Richard J. Hagan, John J. McIntyre
  • Patent number: 4749110
    Abstract: This invention concerns a spray can.The spray can comprises (a) a water-repellent surface treating agent composed of a polyorganosiloxane represented by the general formula, HO[R.sub.2 SiO].sub.n H wherein R denotes a monovalent substituted or unsubstituted hydrocarbon group and n a numeral of the value of 5000 to 100,000, and possessed of hydroxyl groups one each at the opposite terminals thereof and a silane coupling agent, (b) a silicone oil as a freezing property improving agent, (c) .gamma.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: June 7, 1988
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Kunio Maeno, Tatsuya Murachi
  • Patent number: 4730752
    Abstract: A valve cup for use in an aerosol dispenser is configured to provide an anti-seating feature. In one embodiment, dimples are impressed in the sidewalls of a valve cup to inhibit seating of the valve cup flange on the circular shaped ring around the periphery of an opening at one end of the aerosol dispenser. In a second embodiment, detents are placed on the edge of the flange in which the sidewalls of the valve cup terminate to inhibit the seating of the flange on the circular shaped ring.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: March 15, 1988
    Assignee: S. C. Johnson & Son Inc.
    Inventors: James F. Kimball, Karl A. Kohler
  • Patent number: 4651905
    Abstract: A dispensing package is described for toothpaste or similar products. The package has a product chamber which is filled with the product and a propellant and has a valve operated nozzle including a reed-type outlet in which operation of a valve button causes the product to flow outwardly through the normally closed reed opening. The nozzle including the reed-type outlet is molded plastic of generally conical form adapted to fit over the product and propellant container.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: March 24, 1987
    Assignee: Anchor Hocking Corporation
    Inventor: Thomas H. Hayes
  • Patent number: 4640323
    Abstract: A portable system for filling bottles with nitrous oxide from a large supply cylinder of nitrous oxide at ambient temperature. The supply cylinder is connected by a conduit to a cylinder of inert gas which is under a considerably higher pressure than that of the nitrous oxide through a valve. The bottle to be filled is connected to the cylinder of nitrous oxide by another conduit. The inert gas through a pressure regulator maintains a blanket of high pressure inert gas above the liquid nitrous oxide in the cylinder to force the nitrous oxide from the cylinder and into the bottle. The valve when in a first position enables the cylinder of nitrous oxide to be connected to the cylinder of inert gas to maintain the pressurized blanket of gas above the nitrous oxide and then when in a second position enables the inert gas to force the nitrous oxide into the bottle.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: February 3, 1987
    Assignee: Ram Automotive Company
    Inventors: John A. Norcia, Ray Bickar, William M. Wheatley
  • Patent number: 4640623
    Abstract: A stirring member for liquid suspensions in a sealed spray container. The stirring member is formed as an essentially spherical body which is provided along its jacket face with a number of ribs. These are arranged to increase the effects of the stirring activity as the stirring member moves through the liquid suspension.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: February 3, 1987
    Inventor: Goran Tornell
  • Patent number: 4624390
    Abstract: A natural gas fueling system is set forth for filling one or more vehicle tanks from a supply such as a storage tank or a main gas line. The system includes at least one hose assembly having one end adapted to connect to a tank and the other end having a female coupling. Also included is a dispensing assembly having a manually operated valve to control the flow of gas from supply. Connected to the valve is at least one male coupling adapted to be releasably received by the female coupling. The male and female couplings permit the hose assembly to be pulled and disconnected from the dispensing assembly to prevent damage to the hose or dispensing assembly. Additionally, the couplings are provided with check valves to stop the flow of gas when disconnected. A vent is provided to vent any leaking gas as is a locking structure to lock each hose assembly to prevent unauthorized use.
    Type: Grant
    Filed: March 29, 1984
    Date of Patent: November 25, 1986
    Assignee: Dual Fuel Systems, Inc.
    Inventors: Stephen W. Palmer, Donald R. Gneiding
  • Patent number: 4623075
    Abstract: To prevent a bag-in-box type of container comprising a box enclosing a flexible bag from sagging, bulging or leaking when the bag is filled with a pressurized liquid, such as a carbonated beverage, the bag is located either inside a tube of rigid or inelastic material or inside a closed sleeve of elastic material. With the former, transverse platforms with flanges directed towards respective ends of the box are arranged at each end of the tube to transmit pressure from the tube to the box. With a sleeve of elastic material such platforms are not required, but a slotted platform is usually provided for location of the tap which projects from the bag.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: November 18, 1986
    Assignee: T.P.T. Limited
    Inventor: Arthur J. Riley
  • Patent number: 4575735
    Abstract: A fluid including a liquid solvent or carrier medium is applied to a substrate using an ink jet printing device in which the fluid composition is ejected through a nozzle as a jet of fluid, the jet is broken up into substantially uniformly sized droplets by the application of vibration to the composition, the droplets are passed by an electrode by which they are given an electrical charge, the charged droplets are passed through an electric field whereby they are deflected to a desired extent so as selectively to fall upon a substrate to form a symbol thereon or into a catch from which the composition is recycled for re-use. The viscosity of the fluid composition is monitored, and solvent or carrier liquid is added to the fluid to return the liquid content of the fluid to a desired value.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: March 11, 1986
    Assignee: Willett International Limited
    Inventor: Hillar Weinberg
  • Patent number: 4509569
    Abstract: An apparatus for supplying gas to a liquid in a container (2) having a gas pipe (6) discharging thereinto, the apparatus being particularly intended for preparing aerated beverages. The container comprises an orifice (8) for introducing liquid into the container, an orifice (19) for emptying liquid therefrom, and a gas-venting orifice (13). The emptying orifice (19) which preferably is located in the lower part of the container (2) is provided with a valve (20) which can only be opened when the pressure in the container falls beneath a given value. Suitably the valve is automatically opened by a spring force immediately the pressure falls beneath said given value.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: April 9, 1985
    Assignee: Kommanditbolaget Aldolf
    Inventor: Bengt O. Adolfsson
  • Patent number: 4487334
    Abstract: By the displacement, depending on the pressure change in the container (22), of a piston (8) in order to open or obturate a bore (9) in the product conduit (7), the amount of product flowing per unit of time through the opened valve (1) is maintained constant even when the pressure in the container (22) diminishes. The piston (8) is so displaced by the pressure prevailing in the container (22) via a diaphragm (12) against a restoring force (21) that the bore (9) defines, at the time of the highest pressure prevailing in the container (22), a smallest predetermined opening for the product flow. By an adequate choice of the shape of the bore (9), the thrust of the product flowing through the opened valve (1) can thereby be maintained constant, which leads to a constant quality of atomization of the product (23) through a spray nozzle.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: December 11, 1984
    Inventor: Winfried J. Werding
  • Patent number: 4478044
    Abstract: A fluid-impervious self-inflatable sealed pouch containing separately compartmented first and second gas generating components which, upon admixture in successive discrete quantities, generate gas, causing the pouch to expand gradually from an initial collapsed condition to an ultimately fully expanded condition. Within the pouch is a mechanically rupturable solvent-containing member optimally including a measured quantity of one of said components and the other said component is enclosed by a water-soluble film barrier of polyvinyl alcohol, methylcellulose or the like, additional inner receptacles within the pouch contain measured quantities of said one component for successive release into said admixture caused by expansion of said pouch.
    Type: Grant
    Filed: August 5, 1981
    Date of Patent: October 23, 1984
    Assignee: Enviro-Spray Systems, Inc.
    Inventor: David J. Magid
  • Patent number: 4466556
    Abstract: The invention concerns a method and apparatus for dispensing of oxygen and liquids in biological systems, wherein the dispensing is powered by a drive gas formed by the continuous catalytic decomposition of hydrogen peroxide to form water and oxygen. The decomposition of hydrogen peroxide takes place in stages, wherein in a first step only a first amount of gas is liberated in a first container and a further decomposition of hydrogen peroxide takes place in one or more further containers. This method and apparatus are particularly suitable for the continuous production of oxygen, decontamination and disinfection in aquaria and free standing water as well as for the watering of plants and the supply of drinks for animals, where suitable active ingredients can be added to the water.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: August 21, 1984
    Inventor: Klaus Sochting
  • Patent number: 4431117
    Abstract: A propellant storage construction having a chamber for storing propellant and a passage leading to the chamber and containing a valve unit therein for opening and closing the passage, the construction having a removable pressure regulator unit interconnected thereto and being operatively associated with the valve unit for operating the valve unit in relation to the pressure of the propellant having passed through the valve unit. One of the passage and the pressure regulator unit defines a generally conical seat adjacent the valve unit and on the side thereof opposite to the chamber and the other of the passage and the pressure regulator unit having a generally conical nose-like member seated in the seat to fluidly interconnect the pressure regulator unit to the passage downstream from the valve unit.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: February 14, 1984
    Assignee: Robertshaw Controls Company
    Inventors: Francis S. Genbauffe, Joseph J. Erdelsky, Eugene C. Greenwood
  • Patent number: 4397408
    Abstract: The invention relates to a storage system comprising: an enclosure containing a liquid and a pressurant gas and a liquid-expelling device comprising a structure made up of rigid elements which define a grid-like interior surface forming a gas barrier and which delimit a central outlet passage and gaps whose width increases as a function of the distance to the central passage from a minimum value selected for the said gas barrier, to a maximum value selected so as to prevent the liquid contained inside the structure from being expelled into the enclosure as long as the acceleration does not exceed a given threshold, said structure constituting a buffer-tank from where the liquid can be expelled through the central passage under the effect of the gas at every phase of utilization and which is re-filled with liquid contained inside the enclosure by means of a feeding device which converges to a liquid input provided in the structure.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: August 9, 1983
    Assignee: Societe Europeenne de Propulsion
    Inventor: Michel Robert
  • Patent number: 4384661
    Abstract: This invention concerns sprayable, non-foaming emulsions of a film-forming polymer in water which are useful as aerosol paint sprays.
    Type: Grant
    Filed: April 7, 1982
    Date of Patent: May 24, 1983
    Inventors: Edward H. Page, Frank Scotti
  • Patent number: 4381066
    Abstract: This invention concerns sprayable emulsions of a foamable polymer in water which are useful as aerosol caulking or insulating compositions.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: April 26, 1983
    Inventors: Edward H. Page, Frank Scotti
  • Patent number: 4373341
    Abstract: A sealed package for pressurizing the contents of dispensing containers. The package contains chemicals which react to develop gas pressure to expand the package when in the dispensing container. A series of sequentially rupturable pockets add further increments of internal pressure as dispensing proceeds. These pockets, and additional pockets containing chemicals for initiating package pressurization, are formed in an outer film heat-sealed to a second outer film to define the package. The rupturable pockets are covered with a tape to maintain the chemicals isolated until rupture is effected by progressive lift-off of the tape as the package expands.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: February 15, 1983
    Assignee: Mahaffy & Harder Engineering Co.
    Inventors: Reid A. Mahaffy, George W. Anderson
  • Patent number: 4350774
    Abstract: A composition suitable for preparing a stable cellular foam, aerosol containers containing the composition, and methods of using the foamed composition to caulk and insulate, where the composition includes an emulsion of one or more foamable polymers and dispersed in the emulsion a foam forming amount of a mixture of a volatile organic liquid compound selected from the group consisting of a volatile hydrocarbon, a volatile halogenated hydrocarbon and mixtures thereof, and nitrous oxide, wherein the weight ratio of the organic liquid compound to nitrous oxide is selected such that the foam is self leveling and the volume of the foam is not greater than six times the volume of the composition.
    Type: Grant
    Filed: September 4, 1981
    Date of Patent: September 21, 1982
    Inventors: Frank Scotti, Edward H. Page
  • Patent number: 4349135
    Abstract: A nylon or similar material ring insensitive to a product stored in a container is disposed imperviously between a valve and the inner wall of the container so as to protect the sealing gasket against chemical reactions with the stored product.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: September 14, 1982
    Assignee: Establissements Valois
    Inventor: Jean-Claude G. Busselet
  • Patent number: 4340160
    Abstract: The invention covers a method as well as a device for controlling the discharge of molten material from a melter or an intermediate vessel containing such material, in which a primary outflow from the melter or intermediate vessel is fed to an overflow system the working level of which is regulated through the use of pneumatic pressure on a communicating chamber pertaining to the overflow system. Molten material may be led into a primary overflow through the use of a pneumatic lift.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: July 20, 1982
    Assignee: Deutsche Gesellschaft fur Wiederaufarbeitung
    Inventors: Jacobus N. C. van Geel, Frans M. Dobbels, Walther A. H. Theunissen
  • Patent number: 4322020
    Abstract: An invertible pump sprayer is disclosed which enables a spray to be produced even with liquid material having viscosities as high as 100 cps. and regardless of the direction in which the spray is directed. The pump sprayer comprises a flexible container for containing the liquid material to be dispensed which collapses as the material therein is dispensed and a spray pump unit operatively associated with the flexible container. This unit includes a spray head for dispensing the material as a spray and a manually-operated pump for introducing the material to the spray head.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: March 30, 1982
    Inventor: Raymond Stone
  • Patent number: 4281775
    Abstract: Apparatus for controllably transferring fluid from a pierceable pressurized container includes a valve body, a stem member which is threadably connected to the valve body at one end and a fluid-conducting hose at the other end, and an elastomeric valve ball disposed in a cavity between the body and the stem member. The valve ball controls fluid flow from the container through the valve body and stem member to the hose in response to rotation of the valve stem relative to the body. Simultaneously, the valve balls acts as a check valve to prevent flow of fluid to the container. An O-ring seal between the stem and the valve body is adapted to leak at high pressure and bleed off fluid.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: August 4, 1981
    Inventor: Frank J. Turner
  • Patent number: 4275774
    Abstract: Ampoule-packed reference liquids for electrochemical measuring instruments, especially blood measuring instruments, are transferred from the ampoule to the measuring instrument pneumatically by providing a discharge conduit from the liquid in the ampoule, and providing, at the surface of the liquid in the ampoule, an elevated pressure so as to discharge liquid from the ampoule through the said conduit, and introducing the liquid in the measuring instrument. This pneumatic way of transfer is shown to give less distortion of the data of the reference liquid and to be less operator-dependent than the known methods. Invention also concerns a dispenser for performing the method, typically comprising an adaptor for receiving an opened ampoule and a pump for establishing the elevated pressure.
    Type: Grant
    Filed: February 13, 1979
    Date of Patent: June 30, 1981
    Inventors: Jorgen Andersen, Ib Reimer-Nielsen
  • Patent number: 4239407
    Abstract: An aerosol pressure can containing liquid wax for furniture, the can including interchangeable nozzles, one of which is cone shaped, another sprays sideward, and another sprays endways; and the can includes a depressible button its side for opening a dispensing valve along an outlet tube leading to the nozzle.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: December 16, 1980
    Inventor: Hester L. Knight
  • Patent number: 4232802
    Abstract: In an apparatus for the pulsewise dispensing of very small amounts of liquid controlled with a measuring instrument comprising an ejecting device for the pulsewise ejection of a desired amount of liquid, a pump is provided for supplying liquid to the vessel from a reservoir. The pump includes a neck portion having an inlet at the bottom thereof and a foot portion, with at least the foot portion immersed in a liquid contained in the reservoir. The foot portion has a volume at least as great as the refill volume of the measuring vessel and a feedline to the measuring vessel is disposed within the neck portion and terminates in proximity to the bottom of the foot portion. A check valve opens and closes the foot portion inlet by means of compressed gas which is controllable by sensing devices at the measuring vessel.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: November 11, 1980
    Assignee: Jagenberg-Werke Aktiengesellschaft
    Inventor: Gerhard Buschmann
  • Patent number: 4231494
    Abstract: A connector is provided for attachment of a syringe to a dispenser adapted to provide measured quantities of pressured gas to the syringe to displace the contents of the syringe in measured drops. The connector includes a flexible conduit attached at one end to the dispenser and attached at its opposite end to the filling end of a syringe while gripping the oppositely disposed projections, or "ears", of the syringe. There is an externally threaded tube at the syringe end of the flexible conduit, terminated by a stopper member which has a cylindrical end portion sized to fit loosely within the filling end of the syringe, which end portion is joined to a sealing flange. The sealing flange abuts the flat surface at the filling end of the syringe while the syringe "ears" are retained within oppositely disposed channels after a knurled ring on the externally threaded tubular member is rotated.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: November 4, 1980
    Inventor: David L. Greenwood
  • Patent number: 4196826
    Abstract: Dispensing container comprises a chamber for holding a fluid to be dispensed in the form of a long, serpentine duct of small cross section.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: April 8, 1980
    Assignee: L'Oreal
    Inventors: Andre Abrioux, Daniel Bauer
  • Patent number: 4178974
    Abstract: Fluid is forced from a reservoir into an evacuated chamber by forcing a plunger into the reservoir. When it is desired accurately to stop the flow of the fluid, the plunger is withdrawn and concurrently the pressure in the reservoir is reduced to that of the evacuated chamber by means of vacuum pump connected to the reservoir.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: December 18, 1979
    Assignee: RCA Corporation
    Inventor: Jonathan S. Levin
  • Patent number: 4168021
    Abstract: A substantially constant flow aerosol container having a dispensing valve provided in its inlet with a tube having a flow passage between 0.1 mm and 0.5 mm, and of a length sufficient so that flow occurs at a REYNOLDS number less than 3000. The propellant is a non-liquified gas.
    Type: Grant
    Filed: July 7, 1977
    Date of Patent: September 18, 1979
    Assignee: L'Oreal
    Inventors: Yves Hardouin, Robert Sathicq, Pierre Meurice
  • Patent number: D262320
    Type: Grant
    Filed: July 11, 1979
    Date of Patent: December 15, 1981
    Assignee: Aktiebolaget Draco
    Inventor: Rune G. Mono