Patents by Inventor Hubert Hogg

Hubert Hogg 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).

  • Fluid pressure proportioners
    Patent number: 4490978
    Abstract: Modular proportioners such as those of U.S. Pat. No. 4,213,655 are machined and separated into parts provided with appropriate O-ring seals so that the proportioners may be installed in an auxiliary bore of the master cylinder body. Threaded proportioner connections are eliminated. The proportioner parts are assembled by dropping them in place, in order, in the bore. They are retained in place by a retaining ring. This eliminates threaded connections and is adapted for automatic assembly.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: January 1, 1985
    Assignee: General Motors Corporation
    Inventor: Hubert Hogg
  • Pressure modified brake actuating pressure proportioner
    Patent number: 4433872
    Abstract: A load representative air shock absorber pressure system will add to the force exerted by the proportioner spring to increase the pressure point at which the proportioner begins proportioning operation in accordance with increase in vehicle load. Vents are provided to prevent the mixture of air and hydraulic brake fluid in the proportioner. The proportioner may be a part of the wheel cylinder assembly or may be installed in the master cylinder.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: February 28, 1984
    Assignee: General Motors Corporation
    Inventors: Donald L. Parker, Hubert Hogg