Patents by Inventor Edward K. Chee

Edward K. Chee 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: 5137333
    Abstract: A seat cushion includes a rigid base and at least one internal rear wedge disposed on or formed on the upper surface of the base and having a first upper face that slants downward toward the front of the base. It also includes at least one internal front wedge formed on the upper surface of the base and having a second upper face that slants downward toward the rear of the base. It further includes an external cushion, the internal wedges and base being fixed within the external cushion. The cushion has a rocker on the lower surface of the base to allow its angle of tilt to be adjusted by the user.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: August 11, 1992
    Assignee: Rolliture Corporation
    Inventor: Edward K. Chee
  • Patent number: 5086762
    Abstract: Typing brace apparatus includes a rigid yoke having an upper pair of yoke arms, each yoke arm having a forward end; a leg of the yoke depending downwardly from an intersection of the yoke arms; padding affixed to an inner surface of the yoke; and a pair of straps depending downwardly from the forward end of each yoke arm. A first step of each of the two strap pairs is an elbow strap having an elbow cup at a distal end of the elbow strap and a second strap is a wrist strap having a first human wrist engaging-loop at a distal end of the wrist strap. Buckle for adjusting the length of the straps are included. In one preferred embodiment a waist band for encircling a human waist is operably connected to the yoke leg for stabilizing the yoke leg with respect to the two pairs of straps and the trunk or waist of the typist's body. In a second preferred embodiment, a bracket for attaching the yoke leg to a chair is connected to the yoke leg, again for stabilizing the yoke leg with respect to the two pairs of straps.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: February 11, 1992
    Inventor: Edward K. Chee
  • Patent number: D334318
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: March 30, 1993
    Assignee: Rolliture Corporation
    Inventor: Edward K. Chee