Patents Examined by Mark Thronson
  • Patent number: 4646796
    Abstract: An apparatus for detecting and maintaining the level of a liquid in a container filling machine having a rotatable filler bowl includes a float disposed within the liquid in the bowl and having a permanent magnet disposed within the float body. A liquid level indicating bar is mounted within the bowl and is formed from a magnetically responsive material so that vertical movement of the float results in a vertical movement of the liquid level indicating bar. An infrared photo detector is provided for detecting the position of the liquid level indicator and controls are provided for increasing or decreasing the rate of flow of liquid into the bowl depending on the detected level of the liquid.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: March 3, 1987
    Assignee: Marathon Engineers/Architects/Planners
    Inventor: Ronald O. Krause
  • Patent number: 4646816
    Abstract: Tube plugs in several embodiments are provided for plugging and sealing off a defective tube in a heat exchanger to effect a seal at a location within the tube, spaced away from the tube end. The tube plug includes a deformable cylindrical sleeve member which is placed into the tube end, and has a peripheral shoulder thereon which abuts against the tube end to position an interior tapered portion of the sleeve, adjacent to its other open end, at the desired location of the seal to be formed within the tube, and a hard plug member, having a comating tapered portion, which is either hammered into the sleeve or tightened and pulled outwardly depending upon the direction of the engaging tapered surfaces, to deform the sleeve and form the tube seal in the zone of the tapered surfaces.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: March 3, 1987
    Inventor: Samuel Rothstein
  • Patent number: 4644984
    Abstract: The filler neck gas cap of a vehicle owner is utilized as a prop for maintaining the lever of a gasoline pump dispensing nozzle in open position without the necessity of manual operation.Recesses are formed in the periphery or on the end surface of the gas cap for nesting an intermediate portion of the gasoline pump dispensing nozzle operating lever or its guard when the gas cap is interposed therebetween. Resilient padding material within the respective recess increases the coefficient of sliding friction between the gas cap and the dispensing nozzle components when operatively connected therewith to maintain the gas cap in a desired position.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: February 24, 1987
    Inventor: Samuel R. Abraham
  • Patent number: 4640312
    Abstract: Prefabricated insulated pipeline section having a one-piece cast cured and dried insulative liner formed of lightweight aggregate in a foamed portland cement paste binder bonded to the inner surface of a tubular outer casing. The liner composition may be cast, in place between the liner and the pipe, and wet cured at elevated temperature. Bonding between the pipe and the liner composition is avoided by employing a cement cure retarder on the outer surface of the pipe or by mechanically debonding the pipe from the liner during curing. After curing, the pipe is withdrawn to expose the inner surface of the liner to permit rapid drying at elevated temperature. The prefabricated insulated sections permit simplified pipeline construction at reduced cost as compared with traditional methods of applying half shells of insulation to the pipeline on site.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: February 3, 1987
    Assignee: Shaw Industries Ltd.
    Inventors: Farrokh A. Patell, Stephen E. McConkey
  • Patent number: 4637435
    Abstract: An accumulator tank for pressurizing and supplying liquid to a system comprises a pressure vessel having a wall defining a closed pressure chamber. The pressure vessel is provided with an internal flexible air cell which divides the pressure chamber into first and second variable volume compartments containing pressurized air and water, respectively. Perforated conduits are provided in the second compartment in fluid communication with a port, and extend between the wall of the pressure vessel and the flexible air cell. The perforated conduits provide fluid communication between the port and portions of the second compartment when the air cell seals against the wall to otherwise isolate those portions of the second compartment in fluid communication with the perforated conduits.
    Type: Grant
    Filed: August 8, 1985
    Date of Patent: January 20, 1987
    Assignee: Essef Corporation
    Inventor: Charles P. Chirdon
  • Patent number: 4637436
    Abstract: Annular tube-like driver for insertion into a tube insert which in turn is inserted into a tube. The driver is made of a shape-memory alloy which is capable of placing the tube insert in firm engagement with the inside of the tube.
    Type: Grant
    Filed: November 5, 1985
    Date of Patent: January 20, 1987
    Assignee: Raychem Corporation
    Inventors: John B. Stewart, Jr., Laszlo Szalvay, Bernard de Brunier, Jeffrey W. Simpson
  • Patent number: 4633910
    Abstract: In this pulsation absorbing device, a cylindrical resilient protective diaphragm and an inner cylinder formed with one or more communicating holes are disposed within a cylindrical pressure vessel being in concentrical with each other.Along the outer surface of the inner cylinder one or more arched resilient valve members and one or more leaf springs being laminated with each other are disposed capable of being raised or lowered depend upon the extent of the fluid pressure, thereby the arched valve member can be separated in its function of valve action and spring property, therefore the both members are strengthened by the lamination as well as their deformation and extent of fatigue can be kept minimum.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: January 6, 1987
    Inventor: Nobuyuki Sugimura
  • Patent number: 4633911
    Abstract: An orifice seal is shown of the type adapted to be inserted into an orifice meter tube for determining fluid velocity within the tube. The orifice seal includes a resilient seal ring which is adapted to be received about a circumferential region of the orifice plate. The seal ring has circumferential grooves formed on either side of an orifice plate channel. The grooves are formed between inner and outer resilient lips of the seal ring. The inner lips of each of the circumferential grooves is arranged to overlie the circumferential region of the orifice plate when the plate is in place to retain the orifice plate within the seal ring. A U-cup spring located within each of the circumferential grooves resists the deformation of the groove lips by pressure acting on the orifice plate to prevent cold flow of the seal material.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: January 6, 1987
    Assignee: Control Specialties Co., Inc.
    Inventor: Paul Lohn
  • Patent number: 4633913
    Abstract: A non-linear pipe segment, such as an elbow or the like, is disclosed having an inner liner (14) of a wear-resistant material. The outer shell of the segment is in two halves (10, 12) which are coated with a layer of bedding material (16) before being secured around the lines (14) by clamps (28).
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: January 6, 1987
    Assignee: Combustion Engineering, Inc.
    Inventors: Michael W. Carty, Guenther M. Kraus
  • Patent number: 4630647
    Abstract: A clamp which comprises a metal band adapted to be wrapped around a pipe over a suitable gasket. The longitudinal edges of the band are secured to lug bars, one having fingers secured to it and the other having threaded bolts secured to it. The free ends of the bolts are each provided with a nut and washer soldered together to form a nut/washer combination. Each finger is generally U-shaped including a base portion and two leg portions. The bottom edges of the legs adjacent their free ends are welded to a lug bar. The legs converge over a part of their length from a first spacing in the region of the base portion sufficient to accommodate a nut/washer to a second spacing in the region of the lug bar sufficient to accommodate a bolt but not a nut/washer. The top edges of the converging parts of the legs slope outwardly with respect to the bottom edges. The legs have flat ends to accommodate a nut/washer and tabs adjacent the top edges restrain the nut/washer against outward movement while the nut is tightened.
    Type: Grant
    Filed: November 27, 1985
    Date of Patent: December 23, 1986
    Assignee: Waltec Inc.
    Inventor: David G. Thomson
  • Patent number: 4629309
    Abstract: A developer supply system for a dry process electrophotographic copier supplies a single component or dual component type developer to a developing unit. After a used developer has been discharged from the developing unit, a fresh charge of carrier is supplied to the developing unit and, then, a fresh charge of toner to be mixed with the fresh carrier. A circuit is provided for controlling such a sequence. Independent cylindrical cartridges are allocated to the toner of the single composition developer and to the toner and carrier of the dual composition developer. Each of the cartridges is received in a cylindrical cartridge. The cartridge casing is mounted in a hopper casing associated with the developing unit and is driven for rotation therein.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: December 16, 1986
    Assignee: Ricoh Company, Ltd.
    Inventors: Moriyoshi Tsukano, Hisao Ishizu
  • Patent number: 4628965
    Abstract: An improved stab-type coupling of the type used for connecting an end portion of a smooth wall non-metallic pipe or tube to fittings or other pipes or tubes wherein the coupling body has a first end area including an internal recess adapted to receive the end portion of a smooth walled non-metallic pipe. An elongated hollow insert is disposed within the recess for receiving the pipe end portion axially thereover. At least a pipe gripping member is disposed within the recess in a radially spaced surrounding relationship with a portion of the insert to retainingly engage the pipe end portion as it is inserted axially therepast. The improvement comprises a closing structure associated with the body first end area for closing the recess and thereby protect the coupling interior. The closing structure accommodates selective removal of a portion thereof from the body to expose the recess prior to receipt of a pipe end portion thereinto.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: December 16, 1986
    Assignee: Perfection Corporation
    Inventor: David P. Passerell
  • Patent number: 4627469
    Abstract: A duct for wiring comprises a plastic body member of U-shaped cross section and a plastic cover adapted to be received at an open end of the body member. The sidewalls of the body member are equipped with metal or plastic casing elements. The casing elements are clipped, preferably with detenting action, on the sidewalls of the body member by means of grooves and tongues on the respective parts. Another casing element may be provided on the cover and is adapted to be clipped on the body member proximate the open end. The base wall of the body member normally has no casing element and may accommodate a fastener for securing the duct to a support. A so-called connecting casing element may be provided in place of a plain casing element in order to assemble or group together two or more such ducts. In this event the connecting casing element connects the body members of two or more ducts.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: December 9, 1986
    Assignee: Legrand
    Inventor: Yvon Buard
  • Patent number: 4627471
    Abstract: Joints and leaks in pipelines or mains are sealed by injecting into the joint or leak a sealant by means of an expandible tubular pig which is moved endwise through the pipeline or main. The sealant is in the form of an anaerobically curable monomer which cures in the relatively air free conditions in the joint or leak. The pig forms within the pipeline or main an air-free space which communicates with the joint or leak and which is isolated from the fluid in the main. Nevertheless the pig is hollow to permit the flow of fluid therethrough while the joint or leak is sealed. The sealant is injected into the joint or leak by way of the space so that the sealant cures in situ in the joint or leak.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: December 9, 1986
    Assignee: British Gas Corporation
    Inventors: Adrian S. Parkes, Gordon J. Corbett, Peter S. Clough, Colin N. H. Barker
  • Patent number: 4625118
    Abstract: For the radiation-proof elution and metering of a radioactive nuclide from a nuclide generator into a stock ampoule, the generator located in a radiation-proof housing is connected, on the one hand, to a stock of liquid nuclide solvent and, on the other hand, to an aspiration and metering device, connected to a filling mechanism, for the eluate.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: November 25, 1986
    Assignee: Bender + Co. Gesellschaft mbH
    Inventors: Gert Kriwetz, Karl Gartner
  • Patent number: 4621666
    Abstract: A loading apparatus for loading feed stock into agricultural bags wherein the loading apparatus has a housing with a hopper, a passageway communicating with the hopper and a tunnel communicating with the passageway. The tunnel supports the open mouth of an agricultural bag to be filled. A rotor is drivingly located in the passageway. The rotor and passageway have widths approximately two thirds the width of the tunnel. The tunnel has an expanding chamber, a forming chamber and a guide member. The expanding chamber has a rear wall extending substantially vertically and has side walls diverging outwardly all with the view to accommodating the mass of feed stock received from the rotor in the passageway. The rotor has flanges on the ends within the passageway and mount plural pairs of teeth spaced about the circumference thereof.
    Type: Grant
    Filed: October 9, 1985
    Date of Patent: November 11, 1986
    Assignee: Kelly Ryan Equipment Co.
    Inventor: Kelly P. Ryan
  • Patent number: 4619290
    Abstract: A connector 10 for a fluid-flow line comprising a pair of truncated spheres, the inner 14 nesting within the outer 12, with the truncated ends facing in opposite directions. The non-truncated ends of the spheres are each connected to a different circular disc with a grid structure, called an end member 22, 22'. An adjustable tension wire 24 is stretched between the end members 22, 22' and holds the spheres 12, 14 together. A fluid-bearing seal 16 is affixed to the outer surface of the inner sphere 14 and is in contact with the inner surface of the outer sphere 12. A second seal 18 is attached between the spheres 12, 14 but spaced from the fluid-bearing seal 16 to form a seepage space 30 therebetween. The fluid-bearing seal 16 is formed with internal tubes 32 which permit a small leakage flow from the main flow into the seepage space 30 between the upper surface 34 of the seal 16 and the inner surface of the outer sphere 12 so as to reduce friction between these surfaces.
    Type: Grant
    Filed: January 7, 1985
    Date of Patent: October 28, 1986
    Assignee: Rockwell International Corporation
    Inventor: Ellis Katz
  • Patent number: 4619291
    Abstract: A duct for carrying cable comprising a tubular member having a barrel portion and a larger diameter bell portion, the duct further comprising a member disposed in the barrel portion for segmenting the barrel portion into compartments, the segmenting member have a first section and a second section, the second section extending into the bell portion and being adapted to interfit with the first section.
    Type: Grant
    Filed: October 23, 1984
    Date of Patent: October 28, 1986
    Assignee: Nynex Corporation
    Inventor: Said Shirian
  • Patent number: 4619297
    Abstract: A refillable pressure spray container comprises a container having a filling and dispensing nozzle extending outwardly from a cap secured thereon, the nozzle being received in a quick disconnect coupling attached to a motor-driven pump. The quick disconnect coupling has a valve actuating member to raise a valve plunger in the nozzle when inserted into the coupling to establish communication between the pump and the interior of the container. The motor pumps air or gas under pressure into the container. At a predetermined container pressure, a relief valve deactivates the pump. When the container nozzle is removed from the coupling, the plunger closes communication between the container and the pump to pressure seal the contents within the container. A conventional spray nozzle is attached to the plunger for using the refillable container as a conventional aerosol container.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: October 28, 1986
    Inventor: Kenneth E. Kocher
  • Patent number: 4617974
    Abstract: To increase the efficiency of a packaging machine for tobacco portions (10) without adversely affecting the tobacco, two or more tobacco portions (10) are supplied to a packaging turret (11) at the same time. The tobacco portions (10) supplied individually, for example by a bucket chain (13), are collected in cells of a collector formed of two star feeders (32, 33), until the number of tobacco portions corresponding to the simultaneous packaging requirement is available. A distributor (22) with portion receiving chambers is located in front of the collector to sequentially receive tobacco portions.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: October 21, 1986
    Assignee: Focke & Co., (GmbH & Co.)
    Inventors: Heinz Focke, Oskar Balmer