Patents by Inventor Roger Sherrill Sexton

Roger Sherrill Sexton 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).

  • Tandem vacuum booster assembly including sleeve for air transfer between high pressure chambers
    Patent number: 6755117
    Abstract: A tandem vacuum booster includes a rear housing mounted to the vehicle, and a front housing mounted to the rear housing to define an interior chamber. A divider, disposed between the housings, partitions the interior chamber into primary and secondary chambers. A primary diaphragm, disposed between the rear housing and the divider, partitions the primary chamber into a primary high pressure chamber and a vacuum chamber. A secondary diaphragm, disposed between the divider and the front housing, partitions the secondary chamber into a secondary high pressure chamber and a vacuum chamber. A tie rod extends between the housings and through the chambers. A sleeve is disposed about the tie rod and extends between the high pressure chambers and is spaced from the tie rod. This sleeve defines a passage between the tie rod and itself such that air can be transferred between the high pressure chambers.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: June 29, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Michel Jean Vermoesen, Roger Sherrill Sexton
  • Tandem vacuum booster assembly including sleeve for air transfer between high pressure chambers
    Publication number: 20030089224
    Abstract: A tandem vacuum booster includes a rear housing mounted to the vehicle, and a front housing mounted to the rear housing to define an interior chamber. A divider, disposed between the housings, partitions the interior chamber into primary and secondary chambers. A primary diaphragm, disposed between the rear housing and the divider, partitions the primary chamber into a primary high pressure chamber and a vacuum chamber. A secondary diaphragm, disposed between the divider and the front housing, partitions the secondary chamber into a secondary high pressure chamber and a vacuum chamber. A tie rod extends between the housings and through the chambers. A sleeve is disposed about the tie rod and extends between the high pressure chambers and is spaced from the tie rod. This sleeve defines a passage between the tie rod and itself such that air can be transferred between the high pressure chambers.
    Type: Application
    Filed: September 9, 2002
    Publication date: May 15, 2003
    Inventors: Michel Jean Vermoesen, Roger Sherrill Sexton