Patents by Inventor David D. Grohs

David D. Grohs 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 flow restrictor
    Patent number: 5592974
    Abstract: A restrictor for limiting the volume of fluid flowing from an automotive hose into a heat exchanging device in an automotive heating or air-conditioning system is disclosed. The restrictor includes a generally cylindrical, hollow body disposed in the hose and a flow limiting washer disposed in the body. The body includes an annular wall having a stepped region of reduced cross-sectional area which receives a hose clamp therein to prevent sliding and rotation of the restrictor within the hose.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: January 14, 1997
    Assignee: Ford Motor Company
    Inventors: David D. Grohs, Fred G. Schroeder, Pamela K. Blanco
  • Accumulator for air conditioning system
    Patent number: 5435699
    Abstract: An accumulator for an automotive air conditioning system having a mechanism for attenuating fluid pressure pulsations and resultant noise from the air conditioning compressor is disclosed. The fluid pressure pulsation attenuating mechanism includes a predetermined number of attenuating zones formed in the outlet tube of the accumulator, each zone having a cross-sectional area of different size than the cross-sectional area of the outlet tube generally.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: July 25, 1995
    Assignee: Ford Motor Company
    Inventors: Prakash T. Thawani, David D. Grohs, John J. Yarrish