Patents by Inventor Arthur H. Wigell

Arthur H. Wigell 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: 4710693
    Abstract: A front loading facility for continuously charging rechargeable batteries in headphones or other device, comprises an enclosure containing a slidable drawer in which rests the device to be charged. The device to be charged has contacts which bear against spring contacts when the drawer is closed, but a spring ejects the drawer upon energizing of a solenoid of actuated latch. A voltage and current regulated power supply continuously charges the batteries through a light emitting diode, which has a secondary function of preventing inadvertent battery discharge.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: December 1, 1987
    Inventor: Arthur H. Wigell