Patents Examined by Mark Thronson
  • Patent number: 4724876
    Abstract: An apparatus for loading feed stock into agricultural bags of the type having a housing with a hopper, a passageway communicating with the hopper and a a rotor drivingly located in the passageway for advancing feed stock from the hopper into the bags. A screw conveyor is mounted within the hopper and directs stock oppositely along the length of the screw conveyor to eliminate mounding of the feed stock in the hopper. An insert is provided on a tapered wall of the hopper to divert the line of the flow of stock toward the rotational axis of the press rotor and is positioned to direct stock approximately to the screw conveyor and press rotor to prevent an accumulation of dormant stock in the vicinity of the rotor. The invention also comprehends the provision of a direct gear drive between the power take-off of a driving vehicle and the rotor.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: February 16, 1988
    Assignee: Ryco Enterprises Incorporated
    Inventor: Kelly P. Ryan
  • Patent number: 4715412
    Abstract: Method and apparatus for check-weighing a product charge in a continuously operating conveyor system without interrupting the operation and without having extra empty containers in the system after a check-weigh has occurred. Containers are fed forward in a series to a filling station where they are filled with a measured charge of product. When a check-weigh is desired a container is prevented from entering the series, a gap occurs corresponding to the measured charge to be check-weighed, and that charge is diverted to a scale and weighed while subsequent containers receive their charges uninterrupedly.
    Type: Grant
    Filed: August 22, 1985
    Date of Patent: December 29, 1987
    Assignee: Bemis Company, Inc.
    Inventor: Nicholas J. Perazzo
  • Patent number: 4709729
    Abstract: A pipe weld repair structure adapted to seal leaks or cracks at a weld circumferentially disposed in a pipe. Includes at least two pipe clamp segments disposed around the pipe and connected together to form complete clamp. Each clamp segment defines two inner surfaces adapted to be in contact with outer surface of pipe when clamps are connected together around pipe. Each clamp segment defines an inner grooved recess disposed between inner surfaces and adapted to enclose a weld circumferentially disposed around pipe when clamps are connected together around pipe. Clamp segments define an internal diameter when clamp segments are connected to form complete clamp. Internal diameter is conventional fit around pipe while clamp segments are at sufficiently high temperature to cause thermal expansion. Internal diameter is a shrink fit around the surfaces of pipe after clamp segments are connected together while at sufficiently high temperature and subsequently allowed to cool to same temperature as pipe.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: December 1, 1987
    Assignee: Team, Inc.
    Inventor: George W. Harrison
  • Patent number: 4709735
    Abstract: An automatic shut-off device for a fuel dispenser giving a set quantity of fuel into a tank or the like. The device can release a handle member by means of the returning force of a spring so as to shut off a valve in the fuel pipe.
    Type: Grant
    Filed: January 3, 1985
    Date of Patent: December 1, 1987
    Inventor: King-chang Chang
  • Patent number: 4705082
    Abstract: A pump (18) draws liquefied carbon-dioxide from a reservoir (4 or 6) and delivers it via a controllable heater (20) and a filling valve (14) to a cylinder (26) to be filled to any required density. This receiver cylinder (26) is controllably warmed by a heater (32) while sensors (22,24) are provided to indicate the pressure and temperature of its contents.For each required density a table of figures is provided relating pressures (above saturation pressure) to temperature, for that density.A temperature (which must be clear above the lowest temperature at which the receiver will be liquid-fill at the required density but which need not exceed the critical temperature) is selected, and the heaters (20 and 32) are controlled so that the receiver cylinder and its contents will converge at or near that temperature as filling is completed.During the final phase of filling the indicated temperature will rise slowly and the pressure (from the time the receiver is liquid-full) will rise relatively fast.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: November 10, 1987
    Inventors: Hew D. Fanshawe, John K. Conway
  • Patent number: 4705221
    Abstract: The invention relates to an apparatus and a method for the quantitative continuous feeding of iodine by inputting iodine into a hopper under sealed conditions, connecting the lower part of the hopper with a reactor under sealed conditions, having a valve to open and close the passage and installing a quantitative meter to determine the quantity of iodine and feed a constant quantity of iodine to the reactor.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: November 10, 1987
    Assignee: Ise Kagaku Kogyo Kabushiki Kaisha
    Inventors: Muneo Isayama, Shoichi Midorikawa
  • Patent number: 4704068
    Abstract: An adsorption agent is introduced in the insulation chamber of a vacuum insulated double walled vessel for the storage of low-boiling liquefied gases. Specifically the adsorption agent is installed in the chamber before producing the vacuum by housing the agent within a gas and water tight container which bursts in a vacuum.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: November 3, 1987
    Assignee: Messer Griesheim GmbH
    Inventors: Friedel TheiBen, Martin Kesten
  • Patent number: 4702386
    Abstract: A fuel filler pipe seal includes upper and lower portions and a sealing lip positioned at the juncture of the upper and lower portions to engage an outer surface of a fuel nozzle and prevent the escape into the atmosphere of fuel fumes during a fueling operation. The lip lies in a plane which intersects a groove formed in an outer surface of the seal to receive a seat formed on a mounting bracket mounted in an upper end of the filler pipe, and the upper portion of the seal has an umbrella valve formed integrally with it which covers a vent opening in the bracket and is preloaded to release at a predetermined pressure. By positioning the sealing lip adjacent the seat-receiving groove a better seal with a fuel nozzle is formed, premature release of the umbrella valve is avoided, and damage to the seal when the nozzle is thrust into the filler pipe is minimized.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: October 27, 1987
    Assignee: Vernay Laboratories, Inc.
    Inventors: Dennis A. Boehmer, Dale R. Piper
  • Patent number: 4700749
    Abstract: A swirl-generating helical agitator for tubular heat-exchangers comprises a strip of material twisted into a helix and has a cross-section including opposed double inflections. The double inflections have lateral portions inclined at an angle of inclination with respect to and on either side of a central portion.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: October 20, 1987
    Assignee: Societe Anonyme Francaise du Ferodo
    Inventor: Patrick Cadars
  • Patent number: 4700752
    Abstract: A crack arrestor for a pipe is in the form of a clock spring defined by a spiral band of high tensile strength material having an elasticity maintaining the band in contact with the pipe. A method for making the crack arrestor includes saturating high tensile strength filaments with a resin, winding the saturated filaments around a mandrel in a plurality of convolutions, and establishing an elastic set in the convolutions by curing the resin.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: October 20, 1987
    Inventor: Norman C. Fawley
  • Patent number: 4699078
    Abstract: A method for repairing a pipeline includes the steps of cleaning the pipeline (1) from deposits concurrently with laying therein a flexible line (4) which is used for drawing into the pipeline (1) a traction cable (5) and energy and mortar supply lines (6 and 7) connected to a coating application device (10). In an apparatus for carrying out the method, a flexible line supply device (8) is mounted on a cleaning device (3), behind the cutting tool (9) thereof, and includes a chamber (12) which is open at the end thereof, and houses a horizontally mounted reel with flexible line (4) and a rotatable member (14) for unwinding the flexible line (4) from the reel (13).
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: October 13, 1987
    Inventors: Viktor V. Shishkin, Boris I. Shlatgauer, Vladimir L. Medunitsa
  • Patent number: 4697623
    Abstract: An apparatus for continuously filling and preparing pots for receiving plants including an endless conveyor chain supporting a plurality of pot receiver elements and for continuously carrying pots from a pot loading station through a filling station for filling the pots with potting soil, and through a pot drilling station for drilling holes in the soil for receiving plants and a pot ejector station. The pots are loaded, filled, drilled, and ejected while the pots move continuously through the various stations. The pot drilling mechanism includes a rotary turret supporting a plurality of circumferentially spaced rotating drills which are adapted to reciprocate vertically as they revolve about the rotary axis of the turret, so that each drill will be lowered into a pot for drilling a hole in the soil while moving at the same speed and direction as the pot.
    Type: Grant
    Filed: August 21, 1986
    Date of Patent: October 6, 1987
    Assignee: Bouldin & Lawson, Inc.
    Inventors: Floyd E. Bouldin, Lloyd Bouldin, Dwight Bouldin, Jerry W. Pack
  • Patent number: 4694863
    Abstract: A protector for the end face of a fluid conduit member comprises an annular body portion and an end wall provided on one end of the annular body portion. The end wall extends radially and axially inwardly of the annular body portion and can have a substantially centrally disposed aperture therethrough. The aperture is positioned to open generally in alignment with a bore of an associated fluid conduit member on which the protector is positioned.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: September 22, 1987
    Assignee: Cajon Company
    Inventor: James L. Klopp
  • Patent number: 4690172
    Abstract: A nozzle dam for providing a fluid-tight seal across a primary fluid nozzle in the plenum of a nuclear steam generating vessel includes two fluid-impermeable seals, each comprising a circular three-section foldable seal plate covered with a flexible diaphragm and circumferentially encompassed by an inflatable seal member disposable in frictional sealing engagement with the inner surface of the nozzle. The center sections of the two seals are interconnected by tubular coupling means. The diaphragms are disposed on the high pressure sides of the seal plates, and the sections of each seal plate are hinged on the high pressure side. The center section of each seal plate carries two pairs of support tabs attached to the low pressure side thereof and respectively projecting from opposite ends thereof in cantilever fashion for supported engagement with a frustoconical portion of the inner surface of the nozzle.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: September 1, 1987
    Assignee: Westinghouse Electric Corp.
    Inventor: James W. Everett
  • Patent number: 4688603
    Abstract: A hose is formed as a spiral component hose of synthetic material, which is surrounded by a gas-tight corrugated hose of fiberglass weave coated with aluminum. The insulation for the hose consists of several sequential layers of synthetic material felts and synthetic material foils, preferably a total of three groups, each consisting of a polyester felt, an interior foil of polyethylene, and an exterior foil of polyethylene terephthalate. The outermost finish consists of a corrugated hose of synthetic material.
    Type: Grant
    Filed: January 22, 1986
    Date of Patent: August 25, 1987
    Assignee: Messer Griesheim GmbH
    Inventors: Andreas Donnerhack, Detlef Jankowski, Kurt Pfeil-Schneider, Klemens Thoma, Wolfgang Volker
  • Patent number: 4688604
    Abstract: A flexible hose suitable for the transportation of crude oil at elevated temperature and pressure comprises an assembly of a layer of polymeric material disposed between radially inner and radially outer support layers. The polymeric material is of a kind which normally would expand by at least 10% when exposed to the crude oil but which in the assembly is constrained against expansion by said inner and outer support layers.
    Type: Grant
    Filed: December 11, 1984
    Date of Patent: August 25, 1987
    Assignee: Dunlop Limited
    Inventor: Alan D. Griffiths
  • Patent number: 4688480
    Abstract: Improvements in apparatus for loading feed stock into agricultural bags. One aspect of the invention is the provision of a pusher plate between adjacent teeth on a rotor that propels the feed stock to enlarge the effective surface area for moving the feed stock. Another aspect of the invention is the provision of a brake disk on a shaft associated with spaced cable feeding drums that are yieldably braked to control the expansion of the bag. The disk is located between the drums and is associated with a coupling that interconnects the shaft when it is formed in other than one piece. A further aspect of the invention is the provision of a master cylinder to control the yieldable braking force on the cable carrying drums. A further aspect of the invention is the provision of a frame structure having associated hooks to guide winding of a line to form a backstop wall.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: August 25, 1987
    Assignee: Ryco Enterprises Incorporated
    Inventor: Kelly P. Ryan
  • Patent number: 4687026
    Abstract: Equipment for closing conduits comprising a closing lid (1) having two circular disks with a peripheral sealing ring of resilient material. A tightening device connect the two disks at the center thereof causing during tightening to compress the sealing ring radially outwardly. The tightening device is of very stable construction conferring to the disks a parallel movement without mutual rotation. The equipment moreover comprises a mounting device (30) having three parts which are mobile in relation to each other, an attachment yoke (31), a main clamp (39) and a support plate (43). With the aid of a cog gear (40) and racks (42, 44) rotary movements are transformed into either a clamping movement between the closing lid (1) and the support plate (43) or a pulling movement between the closing lid (1) and the main clamp (39).
    Type: Grant
    Filed: January 28, 1986
    Date of Patent: August 18, 1987
    Inventor: Stig Westman
  • Patent number: 4686354
    Abstract: A composite flexible delivery hose 1 for use with a medical humidifier comprises an inner tubular member 2 around which is spirally wound a heater cable 4. The heater cable 4 includes an outer body 6 of electrically insulating material in which is embedded an electrical resistance heater wire 8, a wire 10 interconnecting temperature sensors arranged one at each end of the hose and a thermoplastic support wire 12.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: August 11, 1987
    Assignee: The BOC Group plc
    Inventor: Ronald P. Makin
  • Patent number: 4685494
    Abstract: A filling device for sterile filling of containers. A flexible temporary storage container is placed in a dosage chamber and exposed to external over-pressure and under-pressure, respectively. The filling goods is sucked into the temporary storage container and pressed out to the final storage container. A device for fine adjustment of the volume of the chamber has the shape of an adjustable membrane. The temporary storage container can be made of two semi-spheres, of which one is rigid and the other flexible. The flexible part forms a membrane having an area equal to the inner area of the rigid semi-sphere. In order to promote natural rolling of the membrane on the inner surface of the rigid semi-sphere, the membrane has reduced wall thickness in a direction towards the margin thereof.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: August 11, 1987
    Assignee: Steridose Systems AB
    Inventors: Peter Lofgren, Nils Arthun