Patents by Inventor Allen R. Siekman

Allen R. Siekman 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).

  • Publication number: 20070294831
    Abstract: A seat cushion for use in a wheel chair includes a foam pad contoured to the anatomy of a user positioned thereon and has an indentation in the middle thereof, which receives and drains incontinence fluid from the user. The foam pad encloses an air channel between the indentation and at least one side of the foam pad. A fan housed inside the pad pushes air through the air channel, into the indentation and onto the user. Alternatively, the seat cushion may house an air conditioner to circulate cooled air to the skin of the user.
    Type: Application
    Filed: November 14, 2006
    Publication date: December 27, 2007
    Applicant: AireRx Healthcare, LLC
    Inventors: Allen R. Siekman, Ballard Hillyer Pritchett, Dan McVicker, Richard Keith Ford
  • Patent number: 5442823
    Abstract: A polyurethane foam wheelchair cushion comprises first, second, third and fourth elements. The first element extends across the front portion of the cushion and is made of a relatively stiff foam. The second element is centered near the back portion of the cushion and is made of a foam with a lower stiffness than the first element. Third and fourth elements are on either side of the second element and are made of a foam having an intermediate stiffness between the first element and the second element. Transition surfaces between the second and third and fourth elements are angled relative to a vertical plane. Such an angled transition surface provides a gradual change in stiffness in the vertical direction between materials of different stiffnesses. The top surface of the first element is oriented relative to the second element so that the user's ischial tuberosities will be located approximately 1.5 inches lower than the back surface of the user's thighs when the user is sitting in the wheelchair cushion.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: August 22, 1995
    Assignee: Invacare Corporation
    Inventors: Allen R. Siekman, Julius E. Nachod, III
  • Patent number: 5378045
    Abstract: A seat cushion for use in a wheelchair comprises a shaped tray and a filled envelope. The envelope is filled with a fluid like material which is flowably displaceable under the weight of a user. The shaped tray comprises a recess for receiving the buttocks region of the user as well as a front edge over which the legs of the user extend. A back wedge is mounted along a back edge of the tray and keeps the filled envelope from sliding over the back edge of the tray. Further, side wings located at the sides of the shaped tray near its front edge help constrain the legs of the wheelchair user in a generally forward direction within the width of the wheelchair seat. Side wedges mounted on the underside of the seat are selectively removable to accommodate the presence of a cross brace mechanism, as is commonly used in drop seat wheelchairs.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: January 3, 1995
    Assignee: Invacare Corporation
    Inventors: Allen R. Siekman, Julius E. Nachod, III