Patents by Inventor Corbly LeRoy Holt

Corbly LeRoy Holt 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: 3981319
    Abstract: In an air pressurized hydraulic system, air is replenished in a storage tank for the liquid by an air control responsive to pressure differences in the system to supply air to the storage vessel if needed. During replenishment of liquid in the storage vessel, air may be added repetitively by periodically switching a valve to reverse the pressure across an air control chamber device for admission of air from atmosphere and discharge into the pressure vessel.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: September 21, 1976
    Assignee: Brady Air Controls, Inc.
    Inventor: Corbly LeRoy Holt