Patents by Inventor Arthur Luther

Arthur Luther 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).

  • Mold unscrewing mechanism for making threaded articles
    Patent number: 6599115
    Abstract: An unscrewing mechanism for forming threaded components includes at least one rotatable elongate mold core having a threaded portion at one end for molding a threaded component, a stripper plate that is separable from a stationary plate and underlying a cavity plate in which is integrated a mating mold cavity, and a drive gear with a jack screw at one end and with gear teeth that mesh with mating gear teeth on the mold core for rotating the mold core such that a movement of the stripper plate away from the stationary plate for ejecting a formed threaded component is at the same rate as the unscrewing of the mold core. The jack screw is threaded such that a riser component pushes the stripper plate at the same rate that the mold core is unscrewing.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: July 29, 2003
    Assignee: Precise Technology, Inc.
    Inventors: Albert Chalcraft, Charles Doerner, Gerald Seidelman, Arthur Luther, Kent A. Louviere
  • Mold unscrewing mechanism for making threaded articles
    Publication number: 20020164393
    Abstract: An unscrewing mechanism for forming threaded components includes at least one rotatable elongate mold core having a threaded portion at one end for molding a threaded component, a stripper plate that is separable from a stationary plate and underlying a cavity plate in which is integrated a mating mold cavity, and a drive gear with a jack screw at one end and with gear teeth that mesh with mating gear teeth on the mold core for rotating the mold core such that a movement of the stripper plate away from the stationary plate for ejecting a formed threaded component is at the same rate as the unscrewing of the mold core. The jack screw is threaded such that a riser component pushes the stripper plate at the same rate that the mold core is unscrewing.
    Type: Application
    Filed: May 7, 2001
    Publication date: November 7, 2002
    Applicant: Precise Technology, Inc.
    Inventors: Albert Chalcraft, Charles Doerner, Gerald Seidelman, Arthur Luther