Patents by Inventor Derek Thomas Landschoot

Derek Thomas Landschoot 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).

  • Friction spring for leak detection poppet
    Patent number: 7971853
    Abstract: A pressure management apparatus including a housing (30) defining a fluid communication passage between first and second fluid ports (46, 48). A poppet (40) is disposed in the housing and is movable between first and second positions. The first position prevents fluid communication between the first and second fluid ports, and the second position permits fluid communication between the first and second fluid ports. The poppet includes a portion (75) translatable along an axis relative to the housing. A member (78) is fixed with respect to the housing and is associated with the portion of the poppet. Spring structure (72) is associated with the portion of the poppet. The spring structure is constructed and arranged to engage and bias the portion of the poppet to frictionally engage a portion of the member to create a dashpot damping of resonance of the poppet in the second position.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: July 5, 2011
    Assignee: Continental Automotive Systems US, Inc.
    Inventors: Paul Douglas Perry, Derek Thomas Landschoot
  • Friction spring for leak detection poppet
    Publication number: 20080173269
    Abstract: A pressure management apparatus including a housing (30) defining a fluid communication passage between first and second fluid ports (46, 48). A poppet (40) is disposed in the housing and is movable between first and second positions. The first position prevents fluid communication between the first and second fluid ports, and the second position permits fluid communication between the first and second fluid ports. The poppet includes a portion (75) translatable along an axis relative to the housing. A member (78) is fixed with respect to the housing and is associated with the portion of the poppet. Spring structure (72) is associated with the portion of the poppet. The spring structure is constructed and arranged to engage and bias the portion of the poppet to frictionally engage a portion of the member to create a dashpot damping of resonance of the poppet in the second position.
    Type: Application
    Filed: January 9, 2008
    Publication date: July 24, 2008
    Applicant: Siemens VDO automotive Canada Inc.
    Inventors: Paul Douglas Perry, Derek Thomas Landschoot