Patents by Inventor James S. Amtmann

James S. Amtmann 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).

  • Universal joint with rotating holder sleeve
    Patent number: 4936701
    Abstract: A universal joint for use with impact wrenches and the like comprising a coupling having a bore at one end for engaging the drive shaft of a wrench and a ball receiving cavity at its other end; a socket engaging part having a ball member disposed in the ball receiving cavity; and a guide sleeve concentrically and slidably mounted for free rotation to the coupling, the guide sleeve having a substantially smooth uninterrupted outer cylindrical surface which may be held between the fingers of an operator while the joint is rotating.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: June 26, 1990
    Assignee: Mac Tools, Inc.
    Inventors: Kenneth D. Allen, James S. Amtmann
  • Gate operator with persistant, audible warning signal
    Patent number: 4796011
    Abstract: An operator for a fence gate of the type which translates laterally on and in immediate parallel adjacent relationship to a section of stationary fence wherein the operator comprises an audible sounder for producing a warning signal in advance of and during the entirety of gate translation. A maximum run timer is also included for terminating gate motor drive and operation of the audible sounder.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: January 3, 1989
    Assignee: Stanley Automatic Openers
    Inventors: Rodger Lemirande, James S. Amtmann
  • Storage system
    Patent number: 4231626
    Abstract: A storage system for items such as screws, nuts, bolts and other hardware parts includes a cabinet and drawers in which the parts are packaged and sold. Cooperating keyways and keys on the cabinet and drawers and the lack of supporting horizontal partitions in the cabinet preclude the use of drawers that are not appropriately formed.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: November 4, 1980
    Assignee: The Stanley Works
    Inventors: James S. Amtmann, Louis G. Bobrowski