Patents by Inventor Bruce S. Schaeffer

Bruce S. Schaeffer 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).

  • Refrigeration system condenser heat recovery at higher temperature than normal condensing temperature
    Patent number: 4402189
    Abstract: Heat is recovered in a medium at higher than normal condensing temperature of a refrigeration system by using two cascade connected refrigeration systems and heating the medium in isolated stages by refrigerant subcooling and refrigerant condensing stages of the higher temperature system.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: September 6, 1983
    Assignee: Frick Company
    Inventor: Bruce S. Schaeffer
  • Refrigeration system condenser heat recovery at higher temperature than normal condensing temperature
    Patent number: 4325226
    Abstract: Heat is recovered in a medium at higher than normal condensing temperature of a refrigeration system by using two cascade connected refrigeration systems and heating the medium in isolated stages by refrigerant subcooling and refrigerant condensing stages of the higher temperature system.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: April 20, 1982
    Assignee: Frick Company
    Inventor: Bruce S. Schaeffer