Patents by Inventor Melvin D. Oliver

Melvin D. Oliver 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: 4490586
    Abstract: A telephone ear piece lock is disclosed to prevent unauthorized use of a protected telephone instrument. The ear piece lock includes a rim mounting bracket that is permanently affixed near the receiver end of the telephone and has a flat arm radially outwardly extending therefrom. The arm is provided with a transverse slot for instrument locking purposes. A disc-like cover overfits the receiver end to function as a sound barrier when tightly held over the receiver end. A bent locking finger extends from the cover and is configured to insert through the bracket slot. The locking finger is provided with an opening to receive a portion of a portable lock therethrough, the lock serving to prevent removal of the cover from its shielding position over the telephone receiver end.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: December 25, 1984
    Inventor: Melvin D. Oliver
  • Patent number: 4226104
    Abstract: A removable protector for a locking mechanism, such as a door knob or window lock is disclosed. The protector comprises a magnetically attractive member, such as a circular base plate, surrounding the locking mechanism and a housing magnetically attached thereover to discourage access. The housing is dome shaped in configuration and has an aperture to receive a lever whereby the housing may be removed from the circular plate to allow full access to the lock.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: October 7, 1980
    Inventor: Melvin D. Oliver