Patents by Inventor Helmut K. Amthor

Helmut K. Amthor 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).

  • Battery assembly
    Patent number: 4959280
    Abstract: The invention relates to a battery comprising a rectangular housing containing two series connected cylindrical cell stacks disposed within the housing in parallel relationship and arranged such that the longitudinal axis of each cell stack is parallel to the width dimension of the housing and wherein the cells of the two cell stacks are connected in series to terminals on the exterior of the housing.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: September 25, 1990
    Assignee: Eveready Battery Company, Inc.
    Inventor: Helmut K. Amthor
  • Squeezable flashlight
    Patent number: 4731712
    Abstract: A flashlight includes a flexible housing of mating halves. A lamp and two batteries are arranged such that the lamp terminals are in contact with the battery terminals. The lamp is operated by squeezing the housing which in turn bends a switch member that completes the circuit between the batteries and the lamp.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: March 15, 1988
    Assignee: Eveready Battery Company
    Inventor: Helmut K. Amthor