Patents by Inventor Alvin Joel Fisher

Alvin Joel Fisher 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).

  • System and method for recovering energy from an air compressor
    Patent number: 6360535
    Abstract: A system and method for recovering energy from compressed air. The system and method a microprocessor based control module to monitor compressor discharge pressure and determine the need to bypass gas. Excess compressed air is bypassed to an energy recovery system that converts the potential energy of the compressed air into electrical or mechanical energy. Generated electrical power may be returned to the main power grid or used to power auxiliary equipment, such as the compressor's oil pump.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: March 26, 2002
    Assignee: Ingersoll-Rand Company
    Inventor: Alvin Joel Fisher
  • Front control panel for a microprocessor
    Patent number: D385871
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: November 4, 1997
    Assignee: Ingersoll-Rand Company
    Inventors: Alvin Joel Fisher, John M. Olszewski, Daniel W. Clark, Eric K. Bradley
  • User interface for a front control panel for microprocessor
    Patent number: D399197
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: October 6, 1998
    Assignee: Ingersoll-Rand Company
    Inventors: Daniel W. Clark, Meng Jeng Kann, Alvin Joel Fisher, Troy Smoot, Curtis Bryan Warren, James Edward Scelzi