Patents by Inventor Maris Strautnieks

Maris Strautnieks 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: 6196343
    Abstract: The invention provides a mid-wheel drive wheelchair assembly (10) which includes a central base frame (11), a seat frame (12) removably attached to the base frame (11), a pair of transversely spaced leading pivot arms (13, 14) pivotally attached to opposite sides of the base frame respectively for pivotal movement about a common transverse pivot axis (17), a pair of ground engaging mid-drive wheels (19, 20) each mounted adjacent the trailing end of a respective side pivot arm (13, 14), a pair of ground engaging front castor wheels (21, 22) rotatably mounted at the leading ends of the pivot arms (13, 14), and a pair of ground engage rear castor wheels (23, 24) rotatably mounted at opposite ends of a rigid transverse port arm (25) which itself is pivotally mounted to the rear of the base frame (11) centrally thereof.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: March 6, 2001
    Assignee: Rollerchair Pty Ltd.
    Inventor: Maris Strautnieks
  • Patent number: 4592562
    Abstract: A transfer device for transferring a patient from a wheelchair to a motor vehicle seat, which comprises a pair of interlocking trays, one on a frame of the wheelchair and one on the motor vehicle seat, the trays having aligned tracks which are engaged by the wheelchair seat, which upon being released from the wheelchair frame, is movable from the wheelchair frame onto the tray on the motor vehicle seat.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: June 3, 1986
    Assignee: Friends of the Disabled Assn., Inc.
    Inventors: Maris Strautnieks, Maria A. Snel