Patents by Inventor Zainal A. M. Yahya

Zainal A. M. Yahya 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).

  • Charging contact for use with a battery powered electronic device
    Patent number: 5457609
    Abstract: A battery powered device (100) utilizing a rechargeable battery (135) comprises a ball bearing (300) having a first diameter for receiving a current and a housing (200) having an opening (405) formed therethrough in which the ball bearing (300) is situated, wherein the opening (405) has a second diameter of less than the first diameter. The battery powered device (100) further comprises a spring (305) situated in the opening (405) in contact with the ball bearing (300) and a spring cap (310) fastened to the housing (200) for forcibly holding the spring (305) in contact with the ball bearing (300). A conductive element is coupled between the spring and the rechargeable battery such that the current received by the ball bearing (300) is supplied to the rechargeable battery (135) via the spring (310).
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: October 10, 1995
    Assignee: Motorola, Inc.
    Inventors: Vivek Bhanot, Zainal A. M. Yahya, Tai C. Thiam