Patents Examined by R. J. Charvat
  • Patent number: 4035937
    Abstract: A candle having on the periphery thereof circumferentially spaced, vertical ribs respectively provided therein with circumferentially spaced, vertical, opposed grooves which face each other circumferentially and which are respectively adapted to receive vertical edges of a card, or similar article.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: July 19, 1977
    Inventor: Arthur Rosenfeld
  • Patent number: 4036578
    Abstract: Eyelets are positioned through openings from one side of a circuit board so as to make electrical connections with circuit runs on the board, flash lamp lead-in wires are positioned through the eyelets, and shank portions of the eyelets extending from the other side of the board are bent over to hold the wires and secure the eyelets to the board. One or more of the eyelet shanks are bent so as to extend farther from the board than other eyelet shanks to make contact with a shield member and/or prevent the other eyelet shanks from contacting the shield member.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: July 19, 1977
    Assignee: General Electric Company
    Inventor: Richard M. Herman
  • Patent number: 4033505
    Abstract: A cyclonic, multiple vortex type fuel burner having a combustion chamber with a closed curved end, with the main fuel and auxiliary fuel and air being tangentially injected into the chamber adjacent to the curved end creating a circular oriented combustion of the fuel, with the air being injected at varying quantities along the length of the combustion chamber, all to provide a controlled temperature in the burner chamber that burns all the combustible materials in the fuel and turns the non-combustible materials into dry slag or wet slag without burning the refractory materials forming the combustion chamber. The burner feeds a volume of air and fuel through fixed openings into the combustion chamber to provide a preset fuel/air ratio disribution along the length of the combustion chamber. This fuel/air ratio is subject to change with changes in the amount or density of fuel fed to the burner.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: July 5, 1977
    Assignee: Energex Limited
    Inventors: Kenneth Vaughn Lutes, Leland Golde Desmon, Edward Dana Dodge
  • Patent number: 4029258
    Abstract: A metal collector plate with black paint on its face is mounted in a heat insulated space with a dual pane transparent member transmitting solar rays to the face of the plate. The front face of the plate is spaced from the transparent member providing a passage for free flow of air upwardly along the painted surface. The back side of the plate is divided transversely for exposure to two air chambers, the lower air chamber receiving incoming cool air which becomes pre-heated by contact with the back side and then flows through suitable passages through the lower edge of the plate into the free flow passage, and the upper air chamber receiving heated air from the free flow passage through slots at the upper edge of the plate and additionally providing for contact between the heated air and the back side of the plate. A differential thermostat control for flow of air through the collector unit is operated by heat sensor probes in the cold air intake and hot air chamber.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: June 14, 1977
    Assignee: Sun Unlimited Research Corporation
    Inventor: Glenn F. Groth
  • Patent number: 4009591
    Abstract: A single evaporator, single fan combination refrigerator includes a temperature control system which thermostatically maintains the fresh food compartment at a desired temperature by cycling the refrigerator system on and off as required, and which controls freezer compartment temperature by varying airflow through a duct conducting refrigerated air from the evaporator chamber to the fresh food compartment. Variable airflow control apparatus comprising a mechanical summer operating an air valve varies airflow through the duct as a function of the settings of both the fresh food control and the freezer control.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: March 1, 1977
    Assignee: General Electric Company
    Inventor: William F. Hester
  • Patent number: 4005968
    Abstract: An apparatus for reforming pipe ends by belling or the like. The apparatus includes a support structure which has a heater movably mounted thereon and is movable between a pipe end heating position and a second position remote from the heating position. A clamp is provided to hold the pipe in position during heating and forming. A forming mandrel is carried by power operated moving means which selectively moves the mandrel into forming engagement with an end portion of the pipe and after forming of the end portion the mandrel is retracted from engagement therewith. Cooling means are also provided to cool the formed pipe end portion.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: February 1, 1977
    Assignee: Phillips Petroleum Company
    Inventor: William V. Crawford
  • Patent number: 3999650
    Abstract: A plurality of chutes are spaced downstream of a supply of comminuted material. A first transport band displaces the material upwardly out of the supply and drops the material into the first chute. Some of the material dropped into the first chute is spread by a distributing brush at the bottom of the chute onto the transport band and the balance of the material is picked up by a second transport band extending upwardly out of the first chute and terminating above a second chute so as to drop this material into the second chute whence it is deposited by another distribution brush onto the belt on top of the material deposited from the first chute. Both of the transport bands are inclined at the same angle to the horizontal and are independently driven at different speeds.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: December 28, 1976
    Assignee: G. Siempelkamp & Co.
    Inventor: Klaus Gerhardt
  • Patent number: 3999930
    Abstract: A mold assembly, as much as 12 feet long, consists of a strip of material having a cavity extending from end to end, the cavity being smooth walled about its periphery and open at ends and on one side. Curable sheet composite elastomer material faced with a reinforcing sheet is folded around a mandrel leaving free flaps and slid endwise into the cavity. The flaps are then folded on each other over a filler and a cover strip forming a part of the mold is laid over them. This assembly is then loaded endwise into a container of similar length in which is an inflatable bag, the container being located in an oven. The bag is first inflated to press the cover strip against the exterior of the mold assembly and heat is applied to cure the elastomer material. Thereafter the bag is deflated, the mold assembly removed from the container, the elastomer material and mandrel removed endwise from the mold cavity and the mandrel removed from the cured elastomer material to free the cured finished product.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: December 28, 1976
    Inventor: Louis E. Telbizoff
  • Patent number: 3999915
    Abstract: There is disclosed a liner feeder assembly comprised of a liner supply assembly and a transfer assembly including a liner block having at least one cavity for receiving a preformed liner. The liner transfer assembly is provided with a pump and valve assembly in fluid communication with each such cavity for placing such cavity alternately in fluid communications with the suction side or the compression side of the pump for assisting in the removal of a liner from the liner supply assembly containing a supply of nestable liners and the subsequent positioning in such cavity, and for the placing of the liner on a core rod or pin.
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: December 28, 1976
    Assignee: National Can Corporation
    Inventor: Lawrence D. Stepenske
  • Patent number: 3998578
    Abstract: A mandril for shaping a bell end on a pipe of thermoplastic material, having an elastic shaping ring which is expanded radially in an operative position during the shaping of the bell end and which can be removed from the bell end by radial contraction. The mandril assembly comprises a plurality of parts which are profiled and slidable with respect to each other such that in the operative position the shaping ring is locked radially and axially, and in the removal position the shaping ring can retreat into a chamber formed between the slidable parts.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: December 21, 1976
    Assignee: Polva-Nederland B.V.
    Inventor: Petrus Marinus Acda
  • Patent number: 3998580
    Abstract: A press spar construction for heated panel presses producing composite chipboard panels and the like, in which the pressure plates, in order to avoid heat distortion, are insulated from the press spars by means of pressure-resistant, water-repellant insulating blocks of high dimensional stability, which insulating blocks are encased in metallic shrouds so as to avoid friction on the insulating material.
    Type: Grant
    Filed: July 8, 1974
    Date of Patent: December 21, 1976
    Assignee: Maschinenfabrik J. Dieffenbacher & Co.
    Inventor: Heinrich Pffiffer
  • Patent number: 3995982
    Abstract: A molding apparatus for forming articles and especially edible patties from such moldable materials as ground meat, fish and the like in which the apparatus includes a movable mold having a shaping portion therein, pressure means including a pressure chamber for applying pressure to the material therein for forcing the compressed material into the mold and pressure operated seal means communicating with the pressurized material for providing pressure operated seals that substantially prevent escape of the pressurized material from the pressure cavities of the apparatus.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: December 7, 1976
    Assignee: Hollymatic Corporation
    Inventor: Harry H. Holly
  • Patent number: 3994660
    Abstract: Carbon electrodes for the aluminum industry are shaped in a vibrating mold whose horizontal oscillations are restrained by tension members elongated in a horizontal direction and interposed between the vibrating mold and its stationary supporting structure to exert opposed forces on the mold in a common horizontal plane, thereby impeding horizontal vibration of the mold while permitting vibration in a vertical direction.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: November 30, 1976
    Assignee: Fives-Cail Babcock
    Inventor: Christian Ravet
  • Patent number: 3993427
    Abstract: A preform locator and blow air valve apparatus, for use in a stretch pin assembly in a blow molding machine that produces hollow thermoplastic articles, which functions as a positive blow air shut-off valve means in the absence of a preform in a mold assembly. A tubular valve body is mounted in a stretch pin assembly, with a longitudinally movable blow air nozzle means slidably mounted in the valve body for carrying the preform and locating and sealing the preform against a shoulder in a mold assembly on a blow molding machine. A stretch pin is slidably mounted longitudinally through the blow air nozzle means for stretching a preform mounted on the nozzle means. A blow air passage means is operatively formed through the tubular valve body and blow air nozzle means for admitting blow air under pressure into a preform located in the mold assembly, by said blow air nozzle means, for blowing the preform into a finished article.
    Type: Grant
    Filed: October 11, 1974
    Date of Patent: November 23, 1976
    Assignee: Monsanto Company
    Inventors: Ivan L. Kauffman, Barry C. Owen
  • Patent number: 3991971
    Abstract: A device for regulating the flow of moldable material from a mold which has two mold parts which are separable along a parting plane or surface with a vent passage defined along the plane which extends from the interior of the mold to atmosphere or to a venting apparatus such as a venting pump. One of the mold parts is provided with a recess adjacent the mold separating plane which includes a block having a vent continuation passage which communicates with the vent passage. The vent continuation passage includes a first elongated vent continuation passage portion which communicates with the lower end of a piston bore for a regulating piston which is displaceable in the bore against biasing means by an outflow of the moldable material.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: November 16, 1976
    Assignee: Gebrueder Buehler AG
    Inventor: Johannes Drake
  • Patent number: 3990825
    Abstract: Apparatus for removing partially exposed, upstanding, plug-like, cured scrap from sprues of a mold is disclosed. The scrap is integral with and separable from cured elastomeric product formed in respective mold cavities of the mold at corresponding sprue constriction regions of minimum cross-section. The apparatus comprises a wiping assembly engageable with the exposed portions of the scrap, and a system for moving the mold and wiping assembly relative to one another to effect engagement of the scrap with the wiping assembly and thereby tear the scrap free from each cured elastomeric product at the sprue constriction regions of minimum cross-section.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: November 9, 1976
    Assignee: Uniroyal, A.G.
    Inventors: Lambert M. Pasch, Heinz Wagemann, Hubert Breuer
  • Patent number: 3990824
    Abstract: Apparatus for regulating the flow of refurbishing gas or air internally to tubular film produced by the blown film process, comprising a pair of opposed arm means or arms adapted to physically contact and sense growth or diminishment in the size of the film, as determined by the spacing between the arms, the arms being independently pivotable preferably about a common axis, or alternately parallel axis closely spaced to approximate a common arc of movement, a gas flow regulating valve comprising a pressurized gas line carried by one arm, at which vicinity it is interrupted to define a gap across which the gas stream flows prior to entering the film, a flow blockage valving means comprising preferably a valve plate fixed to the opposite arm, and having changing position in said gap responsive to relative movement between the arms, the valve plate defining an opening of tapered or variable width, which depending on alignment, partially hindered alignment, or non-alignment with the gas stream, increases or lesse
    Type: Grant
    Filed: April 25, 1975
    Date of Patent: November 9, 1976
    Assignee: The Dow Chemical Company
    Inventor: R. Douglas Behr
  • Patent number: 3989439
    Abstract: A device for forming a tube of plastic material with a socket having an annular corrugation has a tube supporting core and a plurality of radially movable segments provided adjacently with contacting wedge surfaces, the segments in outwardly shifted position defining a circumferentially beaded portion for forming the annular corrugation on the supported tube.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: November 2, 1976
    Assignee: Inteco Establishment
    Inventor: Franz Schmitzberger
  • Patent number: 3989440
    Abstract: The present invention relates to a device for shaping a bell end to a tube of a thermoplastic material, the bell end comprising at least one inner surface (widening) having a larger diameter than that of its opening, the latter extending downward to the outer surface of the tube or of the spigot end to be introduced, said device being provided with a cylindrical mandrel, having an outer profile being almost like the inner profile of the bell end to be shaped, said mandrel having from its insert or front end an outer surface with stepwise varying diameter, the transition between adjacent mandrel surfaces of different outer diameter gradually merging under an angle less than with respect to the axis, the front end of said mandrel having an edge portion inclining forwardly and downwardly, the smallest inner diameter of which being smaller than the inner diameter of the tube.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: November 2, 1976
    Assignee: Polva-Nederland N.V.
    Inventor: Petrus Marinus Acda
  • Patent number: 3988100
    Abstract: An injection blow moulding apparatus and method, in which a preform (or "parison") is formed on a blow tube in a preform mould, the preform mould is opened, the blow tube and preform are moved clear of the opened preform mould, a blow mould is closed around the blow tube and preform, and a hollow body is blown in the blow mould and then released, the blow mould parts being continuously around the blow tube and being moved together and apart to close and open the blow mould.
    Type: Grant
    Filed: December 27, 1974
    Date of Patent: October 26, 1976
    Assignee: Albert Aly Kaufman
    Inventor: Philippe Julien