Patents by Inventor Robert G. Booth

Robert G. Booth 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).

  • Pressure change responsive sensor and related vacuum operable switch assembly
    Patent number: 4219710
    Abstract: A pressure change responsive sensor and related vacuum operable switch assembly capable of operation from the manifold of an internal combustion engine to activate a signal in anticipation of the application of the brakes of an automobile. The vacuum operable switch assembly is an improvement on the applicant's U.S. Pat. No. 3,639,898 for Differential Pressure Control System And Switch Means Therefor, and is capable of adjustment to function with internal combustion engines having different manifold vacuum characteristics.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: August 26, 1980
    Assignee: Stop Alert Corporation
    Inventor: Robert G. Booth
  • Apparatus for filtering and cooling oil or other fluids
    Patent number: 4207187
    Abstract: A system for externally cooling and/or filtering oil involving an internally and externally finned housing enclosing a replaceable filter in flow alignment with the external cooling flow circuit of an automatic transmission or the like.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: June 10, 1980
    Inventor: Robert G. Booth
  • Protective helmet and face shield assembly therefor
    Patent number: 4047249
    Abstract: A protective helmet for use by race drivers, police riot squads...etc. incorporates a face shield assembly involving means for overcoming problems of breakage, glare and fogging by associating with a face shield of substantially unbreakable material, coatings or layers of polarized and/or light effecting material treated for fog prevention.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: September 13, 1977
    Inventor: Robert G. Booth