Patents by Inventor Bernard C. Perkins

Bernard C. Perkins 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: 4953237
    Abstract: A globular flapper valve for use in combination with a conventional toilet tank. The flapper valve consist primarily of a normally submerged lever-actuated plunger valve having connection with two separate but interconnected air chambers. A first and upper air chamber is formed in a pneumatically sealable globular container, the upper chamber having open drain access to a lower chamber which has access to a reservoir drain. The first air chamber is operatively connected to the plunger valve and the entire unit is controlled by an attached lever which may be selectively actuated to obtain a partial and alternatively a full flush.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: September 4, 1990
    Inventor: Bernard C. Perkins