Patents Examined by Frederick R. Handren
  • Patent number: 4646946
    Abstract: A flexible enclosed plastic bag disposable in a product container for supplying dispensing pressure therein. The bag contains an envelope having its outer sides permanently attached to the respective inside walls of the bag. One of the sides of the envelope has one of a two component gas generating system disposed in a plurality of aligned pocket members formed therein with their openings facing the other side of the envelope, the latter being releasably adhered to the first mentioned side to enclose one component in the pockets. The bag contains the second component and a starting means to initially generate gas and expand the bag and develop product dispensing pressure within the container.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: March 3, 1987
    Inventor: Ellis M. Reyner
  • Patent number: 4645096
    Abstract: A unique combination of a neck having a back wall which extends above a front wall and a closure for sealing an opening in the neck is disclosed. The back wall has a lip which extends into the opening for engaging the closure. The closure is inserted into the opening such that a groove in its upper surface is engaged by the lip to prevent movement of the closure out of the opening. Removal of the closure is accomplished by depressing it into the opening slightly to release the lip from the groove, and then rotating it about the front wall. In one embodiment, the front wall includes a tamper-proof tab which must break away from the front wall when the closure is rotated during a removal operation. Several embodiments of the upper edge and groove are shown.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: February 24, 1987
    Inventor: Alan H. Grant
  • Patent number: 4643336
    Abstract: A mixing and dispensing gun comprising a body having spaced inlets for receiving two components of an adhesive or reactive fluid, a dispensing valve in the gun, an outlet nozzle and a motionless mixer interposed between the dispensing valve and the outlet nozzle for directing the fluids in a sinuous path and mixing the fluids.
    Type: Grant
    Filed: December 5, 1984
    Date of Patent: February 17, 1987
    Assignee: Kent-Moore Corporation
    Inventors: David C. Mandeville, David W. Lazar
  • Patent number: 4641764
    Abstract: A hot-melt tank having side walls and a bottom wall with a melt unit mounted on the bottom wall in the lower region of the tank, a melt zone. The melt unit includes a base mounted in the lower region and upwardly extending, spaced apart, parallel fins having a sloping upper end. The base does not block a material outflow port in the bottom wall of the tank, but is oriented so that the lowest portion of the sloping upper end of the fins is distal to the outflow port. A shelf, parallel to the bottom wall is positioned over the outflow port parallel to the base, intercepting the fins and secured thereto for blocking direct material inflow from the top of the tank into the outflow port. Rather, material flow is equalized in the lower region of the tank, being drawn to the outflow port from both short and long paths.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: February 10, 1987
    Assignee: Slautterback Corporation
    Inventor: W. Harrison Faulkner, III
  • Patent number: 4640129
    Abstract: A method of detecting the toner concentration of a two-component developer comprising a mixture of carrier particles and toner particles for use in an electrostatic copying apparatus or the like wherein a relationship between flow rate and the toner concentration of a two-component developer which passes through a container is obtained in advance, then the flow rate of the two-component developer whose toner concentration is unknown is measured by use of the container and developer flow rate detecting member. Thus, the toner concentration of the developer is determined from the measured flow rate and the relationship between the flow rate and the toner concentration which has been obtained in advance.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: February 3, 1987
    Inventors: Seiichi Miyakawa, Susumu Tatsumi, Koji Sakamoto
  • Patent number: 4638924
    Abstract: A sprayer mixes water and concentrate on an "as-used" basis. A preselected amount of concentrate is dispensed into a mix tank for each reciprocation of a proportioning pump set. The amount of concentrate dispensed is selected by varying the pump set stroke. The pump set is reciprocated by reversing flow into one power line and out of another power line fluidly connected to the set. The flow is reversed by sliding a spool within a bore from one position, where sets of apertures in the spool are aligned with ports of the bore to connect a source of water under pressure to one power line and the other power line to an outlet line leading to the mix tank, to another position, where the aperture sets are realigned with the ports to reverse the connections. A meter measures the flow of water to the mix tank. The meter connects current to open one of two control valves connecting the bore ends with the source to move the spool to its next position hydraulically.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: January 27, 1987
    Inventor: Horace R. Newsom
  • Patent number: 4637525
    Abstract: A control system for controlling a supply of a predetermined quantity of fluid comprises a pump for supplying a fluid, a motor for driving the pump, a measuring device for measuring a flow quantity of the fluid which is supplied by the pump, a device for presetting before starting a fluid supplying operation a preset value P which is indicative of a desired fluid supplying quantity, and a control device supplied with a measured flow quantity from the measuring device and the preset value P for controlling the application of a current to the motor. The control device comprises a first circuit for applying the current to the motor until the measured flow quantity from the measuring device becomes equal to P-K, where K is a predetermined value greater than an oversupply quantity .DELTA.
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: January 20, 1987
    Assignee: Tokico Ltd.
    Inventors: Yukio Miura, Yoshikazu Miyamoto
  • Patent number: 4635819
    Abstract: A control for loss-in-weight feeders which decreases flow error during refill of the feeder hopper. The weight range (empty to full capacity) of the hopper is divided into weight increments. Samples are taken of the hopper weight during discharge and refill, and each sample is assigned to a weight increment. During discharge, a scale factor related to the density of material in the hopper is computed, assigned to a weight increment and stored in memory; and the hopper feed screw is driven at a speed proportional to the computed scale factor. During refill, the stored scale factors are retrieved from memory and the hopper feed screw is driven at a speed proportional to the stored scale factors; but no additional scale factors are calculated.
    Type: Grant
    Filed: March 19, 1985
    Date of Patent: January 13, 1987
    Assignee: K-Tron International, Inc.
    Inventors: David H. Wilson, James M. Loe
  • Patent number: 4634026
    Abstract: A bread dough dispensing machine consisting of a drum (2) with a cylindrical hole (3) which runs from end to end and in which a piston (4) moves, both the drum (2) and the piston (4) having alternating movement which is transmitted to the drum (2) through a disk (9) and a rod (10) and to the piston (4) through a rotating arm (7) and a cam surface (8) which act on the end of the stem (5), the machine being equipped with a hopper (1) on the upper part of the drum (2) and an endless belt conveyor (11) on one side to which the dough is expelled.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: January 6, 1987
    Inventors: Enrique Suay Puig, Javier Suay Puig
  • Patent number: 4632278
    Abstract: A dispensing container for dispensing molten plastic into a mold, the container being piston operated and having a heater inside the container for minimizing the time required to melt solid plastic. The heater extends axially of the container while passing in sealing engagement with the piston which therefore slides upon the heater during its movement. The heater is preferably mounted at one end about a universal mounting from which the heater freely extends. This mounting allows for slight movement of the heater laterally if misalignment with the piston occurs.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: December 30, 1986
    Assignee: Northern Teleco M Limited
    Inventor: Michael J. Donaldson
  • Patent number: 4632284
    Abstract: A seeding device to dispense seed suspended in a gel or other carrier medium in either a continuous stream or discrete pulses. A coulter opens a furrow of earth to the proper depth and seed carried in a gel or other suspension medium is delivered in a pulsed or continuous stream into the furrow which is then covered with earth by a trailing coverer. An auger delivers the seed in suspension and the speed of the auger is controlled to vary the volume of seed and gel or other suspension medium delivered. Circumferentially spaced cam lobes on a drive wheel control the frequency and therefore the row spacing of the seed suspension medium distributed in the pulse delivery mode.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: December 30, 1986
    Assignee: Nepera Inc.
    Inventors: Fernando Erazo, Richard W. Conant
  • Patent number: 4632275
    Abstract: The present invention relates to a palatability stabilizer for maintaining properly carbonated water in an electrically powered postmix fountain drink dispensing system when a supply of pressurized carbon dioxide is depleted. A carbon dioxide pressure sensor is connected between the carbon dioxide supply and the fountain drink dispensing system to sense the carbon dioxide supply pressure. A switch is connected to the carbon dioxide pressure sensor and coupled between the electrical power and the fountain drink dispensing system for disconnecting power to the fountain drink dispensing system when the carbon dioxide pressure is below a predetermined pressure. This is done so that water is not improperly carbonated with low pressure carbon dioxide and so that properly carbonated water and other drink components within the fountain drink system are maintained in the system by not dispensing fountain drinks until the pressurized carbon dioxide supply is replenished.
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: December 30, 1986
    Inventor: Charles K. Parks
  • Patent number: 4630758
    Abstract: A liquid tank structure for reducing hydrostatic pressure at an outlet thereof. The structure has a liquid container having an outlet at its lower portion, and a capillary member within the liquid container for exerting a force on a liquid therein in a direction opposite to the hydrostatic pressure of the liquid at the outlet for reducing the hydrostatic pressure at the outlet.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: December 23, 1986
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Masayuki Mutoh
  • Patent number: 4629098
    Abstract: A portable liquid dispenser suitable for use by persons while performing an activity comprises a thermally-insulated container for liquids having a fastener for releasably attaching the same for access by the user. A single flexible dispensing tube having a pair of parallel longitudinal passages is connected at one end connected to the filling cap of the container and at the other end to a dispensing valve for discharging liquids from the container. The container is pressurized by a compressible bulb sealed end around the distal end of the dispensing tube in communication with the interior of the container through one longitudinal passage in the tube. A check valve is disposed in the air inlet of the fitting and another check valve is disposed in the air inlet of the dispensing valve which cooperate with the bulb to force air into the container.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: December 16, 1986
    Inventor: Douglas R. Eger
  • Patent number: 4627552
    Abstract: A fuel supplying apparatus comprises a first circuit for measuring a flow quantity of fuel which passes through a fuel supplying hose, a single mode setting switch provided on the hose at a position in a vicinity of a nozzle, a second circuit for discriminating the state of the apparatus based on the existence of an output of the first circuit, and a third circuit for controlling the supply of fuel. The second circuit discriminates that the apparatus is set to a preset quantity supplying mode when the switch is manipulated in a state before a fuel supplying operation is started, and discriminates that the apparatus is set to an integral quantity supplying mode when the switch is manipulated in a state during the fuel supplying operation.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: December 9, 1986
    Assignee: Tokico Ltd.
    Inventors: Takeomi Yoshida, Kazuhisa Yamashita, Yukio Miura
  • Patent number: 4625897
    Abstract: A metering dispenser assembly comprises a squeeze bottle 1 with a metering cup 3 fitting in the neck of the bottle and carrying a dip tube 9 which extends to the bottom of the bottle. The dip tube, or at least a pillar 7 into which it fits, terminates at a level between the top and bottom of the cup, and there is a vent hole at this level to provide communication between the container and atmosphere. The vent is small enough not to allow significant leakage from the cup during a dispensing operation. The vent could instead be alongside the dip tube.
    Type: Grant
    Filed: September 21, 1984
    Date of Patent: December 2, 1986
    Assignee: Sunbeam Plastics Corporation
    Inventor: Michael Wortley
  • Patent number: 4624392
    Abstract: Casks for liquids such as fruit juices or wine use air impervious bags to contain the liquid so as to increase its shelf life considerably. However, the material of the dispensing tap allows oxygen to penetrate thus reducing the shelf life. To overcome this it is proposed to use an oxygen impervious diaphragm at the inner end of the dispensing tap. It is therefore necessary to include in the tap a device for rupturing the diaphragm without interfering with the operation of the tap. This is done by including in the apparatus a body, a probe mounted within the body, and a handle. An initiator is provided to move the probe during or prior to the first operation of the apparatus to move the probe axially inwardly so as to rupture the diaphragm.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: November 25, 1986
    Assignee: Diemoulders Proprietary Limited
    Inventors: Jon H. Malpas, Alan R. Calder
  • Patent number: 4621748
    Abstract: A block of solid thermoplastic material comprising alternating sections of circular and rectangular cross section, a device for melting and dispensing thermoplastic material having a thumb operated drive assembly for driving the block into the device, and a molding mechanism including two chain like structures that move along linear path portions with molds included in the structures in face to face relationship while molten thermoplastic is injected in an inlet end of the linear path portion to continuously mold the block.
    Type: Grant
    Filed: October 23, 1984
    Date of Patent: November 11, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Michael M. Dziki
  • Patent number: 4618076
    Abstract: A dual dispensing bottle includes two upwardly extending necks having a trigger sprayer attached to one neck and a frangible orifice creating section integrally formed in the other neck. The frangible section is easily removed by twisting and doubles as a plug for the created orifice. The frangible twist-off section enables the consumer to dispense a large amount of product independently of and without removing the trigger sprayer. Since the frangible section is an integral part of the bottle, the easy open/reclose feature is obtained with negligible increase in the manufacturing cost of the bottle.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: October 21, 1986
    Assignee: The Dow Chemical Company
    Inventor: Scott A. Silvenis
  • Patent number: 4615465
    Abstract: In an atomizing pump for dosed atomization and application of water solutions a boundary-surface-active composition from the class of surfactant is provided in an inner chamber at least during operation of the pump. The boundary-surface-active composition can be supplied into the inner chamber between inlet and outlet valves and/or located upstream of the inlet valve and introduced into the inner chamber during first working strokes in more concentrated form than the solution to be atomized.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: October 7, 1986
    Inventor: Hans Grothoff