Patents by Inventor Jonathan K. Hammond

Jonathan K. Hammond 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).

  • Patent number: 7025187
    Abstract: An electromagnetic clutch assembly of the leaf spring type has leaf springs the inner ends of which are fixed to a drive plate by conventional rivets, and the outer ends of which are fixed to the armature plate by special rivets having enlarged diameter shanks that extend through clearance holes in overlaying portions of the drive plate. Rubber damper rings are trapped beneath an enlarged head of the rivet, against the outer surface of the driver plate, without intruding into the radial clearance. The clearance holes allow the rubber rings to compress freely as the leaf springs flex when the clutch is activated. During operation, the transmission of torsional vibrations back through the drive plate and springs to the armature plate is dampened by the compressed rubber rings.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: April 11, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Jonathan K. Hammond, Stephen M Covert, James C Wright
  • Publication number: 20040231949
    Abstract: The subject invention improves the electrical connection in a clutch assembly for engaging a compressor in a vehicle air conditioning system. In accordance with the subject invention, a tab extends from the mounting plate and the second end of the ground lead is frictionally retained between the tab and the core winding housing. This is accomplished by turning a tab out of the plane of a mounting plate, placing the second end of the ground lead under the tab and bending the tab downwardly to clamp the second end of the ground lead between the tab and the core winding housing to frictionally retain the second end of the ground lead between the tab and the core winding housing.
    Type: Application
    Filed: May 20, 2003
    Publication date: November 25, 2004
    Inventors: Anh Le, Jonathan K. Hammond
  • Patent number: 6817459
    Abstract: The subject invention improves the electrical connection in a clutch assembly for engaging a compressor in a vehicle air conditioning system. In accordance with the subject invention, a tab extends from the mounting plate and the second end of the ground lead is frictionally retained between the tab and the core winding housing. This is accomplished by turning a tab out of the plane of a mounting plate, placing the second end of the ground lead under the tab and bending the tab downwardly to clamp the second end of the ground lead between the tab and the core winding housing to frictionally retain the second end of the ground lead between the tab and the core winding housing.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: November 16, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Anh Le, Jonathan K. Hammond