Patents by Inventor John Ralph

John Ralph has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5746083
    Abstract: A hemming machine adapted to externally and internally hem a sheet metal fabrication comprising an anvil which itself is apertured so as to register with an aperture in the metal fabrication which is to be internally hemmed, wherein additional hemming apparatus is provided mounted at the upper end of a drive, and support means is located below and protruding up through the opening in the anvil so as to protrude the opening in the fabrication, further comprising a hemming tool displaceable vertically and horizontally having a chamfered lower leading edge, a slidable block carrying the tool at one end, drive means for positioning the slide vertically, and further drive means for positioning the block within the slide for positioning the tool horizontally, a second anvil resiliently displaceable and engaging the underside of the tool or normally raise the latter relative to its lowermost position, and wherein the upper surface of the block is adapted to withstand an impact force and transmit same to the tool to
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: May 5, 1998
    Assignee: Western Atlas U.K. Limited
    Inventors: Josef Kovarovic, John Ralph Kowalewsky
  • Patent number: 5740691
    Abstract: A press is described for prehemming and final hemming the internal periphery of an aperture in sheet material received on an anvil (10) on which the sheet material (12) is held down so that the upturned edge (14) of the aperture which is to be hemmed is substantially in alignment with the edge of the opening in the anvil (10). A composite hemming tool (40, 42) is provided adapted to perform prehemming and final hemming and carried b a tool carrier (36, 38). Drive means (24, 26) protrudes up from the press through the opening in the anvil so that a lower inclined leading edge (44, 46) of the tool substantially registers with the upturned edge (14) to be hemmed. The drive means operates so as to force the tool first of all towards the edge so as to bend the upturned edge over until it is bent through substantially 90 degrees from its upstanding position and thereafter to move in a generally downward direction so as to compress the downturned ege. A method of hemming is also described based on this machine.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: April 21, 1998
    Assignee: Western Atlas U.K. Limited
    Inventors: Josef Kovarovic, John Ralph Kowalewsky, Gerrit Wesley Sloat
  • Patent number: 5736249
    Abstract: Articles of manufacture are provided with a low surface energy, permanently non-stick, non-fouling and ice-phobic surface by a system of coating comprising applying a primary coating having a surface energy of 22-28 dynes/cm.sup.2 comprising a novel polymeric material having non-stick and hardness properties and then applying a top coating having lower surface energy of from about 18-21 dynes/cm.sup.2 comprising a siliconic polymer and interdigitating means to make the top coating permanent, the means preferably comprising a bi- or polyfunctional organic compound adapted to wet the surface of the primary coating and chemically or physically bond thereto and to couple to the siliconic polymeric substance in the top coating. The coated substrates are resistant to marking by graffiti, to adherence by marine fouling organisms, and frozen ice on the surface is easily removed.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: April 7, 1998
    Assignee: Decora, Incorporated
    Inventors: John Ralph Smith, Nissim N. Garti
  • Patent number: 5707472
    Abstract: A transfer composite for in-mold decoration of molded plastic or rubber articles comprising a casting substrate having a controlled release surface, and a thin discontinuously printed pressure sensitive adhesive tape-strippable pattern deposited on the casting substrate, whereby the transfer composite is suitable for inserting into a mold and adapted to resist print-distorting movement during flow of plastics or rubbers in the mold, yet capable of permanently bonding to the molded article without the use of adhesives. After removal from the mold the casting substrate and the controlled release surface are stripped from the decorated article.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: January 13, 1998
    Assignee: Decora Incorporated
    Inventor: John Ralph Smith
  • Patent number: 4034975
    Abstract: A processing machine, particularly a reader, for punched document cards including a hopper for a deck of the document cards, pick rolls disposed beneath the hopper in such position as to feed the document cards transversely thereof from the bottom of the hopper, a vertically movable hopper bed for moving the deck onto and off of the pick rolls to make them effective or ineffective, a deck lifter positioned beneath the card deck in the hopper for supporting one side of the card deck after the bottommost card has been moved transversely thereof partially out from underneath the other cards in the deck, driving rolls for moving the bottommost card longitudinally after it has been partially so moved from underneath the rest of the deck and means operative for reading punched holes in the document card on continued longitudinal movement of the card.
    Type: Grant
    Filed: May 24, 1974
    Date of Patent: July 12, 1977
    Assignee: International Business Machines Corporation
    Inventors: Mark Charles Agnew, John Ralph Reidenbach, James Michael Rigotti
  • Patent number: 3945116
    Abstract: A portable hand-held shear for cutting grass and the like comprising a housing enclosing an electric motor and forming a handle. The motor includes an output rotary shaft which, through a gear train, drives a rotary blade. A stationary bed knife assembly connected to the housing cooperates with the rotary blade in scissor-like fashion to cut grass.An improved cutting assembly is described in which the rotary cutting blade member, of particular design and positioned in a floating relationship above the stationary bed knife assembly, is inclined into engagement with the cutting teeth projecting from the stationary bed knife assembly, also of particular design, in such a manner to improve the performance of the shear. The improved cutting assembly further includes a rotary hub drive member which cooperates with the shear housing and the bed knife to eliminate clogging and partially overlaps the bed knife assembly's cutting teeth to further improve the performance of the shear.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: March 23, 1976
    Inventor: John Ralph Hardin, Jr.
  • Patent number: 3939010
    Abstract: Improved cathodes for use in acid Leclanche cells, particularly of the reserve type where sulphuric acid is added to activate the cell prior to use, are constructed using an anodized lead current collector which possesses advantages over other materials in being less bulky than carbon, cheaper than platinum and giving a steadier output voltage than un-anodized lead, while still being resistant to corrosion.
    Type: Grant
    Filed: September 25, 1973
    Date of Patent: February 17, 1976
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence
    Inventors: John Ralph Coleman, Torstein Valand