Patents by Inventor Ray F. Hamilton

Ray F. Hamilton 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).

  • Transfer case bushing
    Patent number: 6983673
    Abstract: A transfer case for AWD/4WD vehicle that employs a bushing positioned within a transfer case housing. The bushing is formed to the housing when the housing is cast. The bushing includes one or more axial notches formed in an outer surface of the bushing that fill with the housing metal during the casting process that prevents the bushing from rotating in response to a load from a slip yoke. A helical groove is formed in the inner surface of the bushing and a slot is formed through a housing wall along the bushing that allows lubricant from within the housing to flow through the bushing.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: January 10, 2006
    Assignee: BorgWarner Inc.
    Inventors: Peter J. Bellich, Bryan D. McIntyre, Ray F. Hamilton, John H. Price, David R. Weilant, Ivan C. Poor, Jim Sells
  • Transfer case bushing
    Publication number: 20040168845
    Abstract: A transfer case for AWD/4WD vehicle that employs a bushing positioned within a transfer case housing. The bushing is formed to the housing when the housing is cast. The bushing includes one or more axial notches formed in an outer surface of the bushing that fill with the housing metal during the casting process that prevents the bushing from rotating in response to a load from a slip yoke. A helical groove is formed in the inner surface of the bushing and a slot is formed through a housing wall along the bushing that allows lubricant from within the housing to flow through the bushing.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Inventors: Peter J. Bellich, Bryan D. Mclntyre, Ray F. Hamilton, John H. Price, David R. Weilant, Ivan C. Poor, Jim Sells
  • Transfer case for four wheel drive vehicles
    Patent number: 5520590
    Abstract: A transfer case for a part-time four wheel drive vehicle includes a planetary gear speed reduction assembly driven by the transfer case input shaft for providing high and low speed range outputs. The planetary gear assembly is disposed between and is selectively engaged by primary and secondary clutch collars, the primary clutch driving the rear (primary) output shaft in either the high or low speed ranges. The secondary clutch drives the front (secondary) output shaft through a chain drive in the low range. The clutch collars are controlled by a single (common) clutch operator. An electromagnetic clutch assembly driven by the input shaft selectively drives the front output shaft chain drive. The electromagnetic clutch functions both as a synchronizer and torque delivery device. The transfer case may be combined with a control which facilitates direct selection of vehicle drive mode.
    Type: Grant
    Filed: April 13, 1995
    Date of Patent: May 28, 1996
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Dan J. Showalter, Mark A. Lindsey, Ray F. Hamilton, Ronald A. Schoenbach
  • Transfer case for four wheel drive vehicles
    Patent number: 5409429
    Abstract: A transfer case for a part-time four wheel drive vehicle includes a planetary gear speed reduction assembly driven by the transfer case input shaft for providing high and low speed range outputs. The planetary gear assembly is disposed between and is selectively engaged by primary and secondary clutch collars, the primary clutch driving the rear (primary) output shaft in either the high or low speed ranges. The secondary clutch drives the front (secondary) output shaft through a chain drive in the low range. The clutch collars are controlled by a single (common) clutch operator. An electromagnetic clutch assembly driven by the input shaft selectively drives the front output shaft chain drive. The electromagnetic clutch functions both as a synchronizer and torque delivery device. The transfer case may be combined with a control which facilitates direct selection of vehicle drive mode.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: April 25, 1995
    Assignee: Borg-Warner Automotive, Inc.
    Inventors: Dan J. Showalter, Mark A. Lindsey, Ray F. Hamilton, Ronald A. Schoenbach