Patents by Inventor Stefan Pietas

Stefan Pietas 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: 8109574
    Abstract: An adjustable hinge mountings has a first hinge arm, a second hinge arm, a toothed quadrant centered on a hinge axis and connected to the first hinge arm, a detent part which has a toothed surface feature cooperating with the toothed quadrant and a control part associated with the detent part. The hinge arms can be pivoted between an active angular range in which the detent part is allowed to engage the toothed quadrant and a passive angular range in which the detent part is not located opposite the toothed quadrant so that the detent part is not allowed to engage the toothed quadrant. In the passive angular range, the detent part is retained by the control part in a passive position in which it is not in the range of movement of the toothed quadrant. In the active angular range, the detent part adopts an active position in which the detent part can be brought into engagement with the toothed quadrant.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: February 7, 2012
    Assignee: C. Rob. Hammerstein GmbH & Co., KG
    Inventors: Burckhard Becker, Stefan Pietas, Robert Houston, Jozef Potecin
  • Patent number: 7971843
    Abstract: A longitudinal guide for motor vehicle seats having a bottom rail and a seat rail that are displaceable with respect to each other in one longitudinal direction. The motor vehicle seats are adjustable in a longitudinal direction and are also removable from the longitudinal guide. Detents are formed in the bottom rail. The seat rail comprises a base part and a supporting part. The base part has at least one front and at least one rear transverse bolt, which cooperate with the detents. The base part is adjustable with respect to the supporting part between a lower position, in which the transverse bolts are not engaged with the detents, and an upper position, in which the transverse bolts engage detents. Only in the lower position is the seat rail displaceable with respect to the bottom rail.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: July 5, 2011
    Assignee: C. Rob. Hammerstein GmbH & Co. KG
    Inventors: Burckhard Becker, Robert Houston, Stefan Pietas
  • Publication number: 20090224130
    Abstract: A longitudinal guide for motor vehicle seats having a bottom rail and a seat rail that are displaceable with respect to each other in one longitudinal direction. The motor vehicle seats are adjustable in a longitudinal direction and are also removable from the longitudinal guide. Detents are formed in the bottom rail. The seat rail comprises a base part and a supporting part. The base part has at least one front and at least one rear transverse bolt, which cooperate with the detents. The base part is adjustable with respect to the supporting part between a lower position, in which the transverse bolts are not engaged with the detents, and an upper position, in which the transverse bolts engage detents. Only in the lower position is the seat rail displaceable with respect to the bottom rail.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 10, 2009
    Inventors: Burckhard Becker, Robert Houston, Stefan Pietas
  • Publication number: 20090108657
    Abstract: An adjustable hinge mountings has a first hinge arm, a second hinge arm, a toothed quadrant centered on a hinge axis and connected to the first hinge arm, a detent part which has a toothed surface feature cooperating with the toothed quadrant and a control part associated with the detent part. The hinge arms can be pivoted between an active angular range in which the detent part is allowed to engage the toothed quadrant and a passive angular range in which the detent part is not located opposite the toothed quadrant so that the detent part is not allowed to engage the toothed quadrant. In the passive angular range, the detent part is retained by the control part in a passive position, while in the active angular range, the detent part adopts an active position in which the detent part can be brought into engagement with the toothed quadrant.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 30, 2009
    Applicant: C. ROB. HAMMERSTEIN GMBH & CO. KG
    Inventors: Burckhard Becker, Stefan Pietas, Robert Houston, Jozef Potecin
  • Publication number: 20090108656
    Abstract: An adjustable hinge mountings has a first hinge arm, a second hinge arm, a toothed quadrant centered on a hinge axis and connected to the first hinge arm, a detent part which has a toothed surface feature cooperating with the toothed quadrant and a control part associated with the detent part. The hinge arms can be pivoted between an active angular range in which the detent part is allowed to engage the toothed quadrant and a passive angular range in which the detent part is not located opposite the toothed quadrant so that the detent part is not allowed to engage the toothed quadrant. In the passive angular range, the detent part is retained by the control part in a passive position in which it is not in the range of movement of the toothed quadrant. In the active angular range, the detent part adopts an active position in which the detent part can be brought into engagement with the toothed quadrant.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 30, 2009
    Applicant: C. ROB. HAMMERSTEIN GMBH & CO. KG
    Inventors: Burckhard Becker, Stefan Pietas, Robert Houston, Jozef Potecin