Patents by Inventor Hal R. Bradstreet

Hal R. Bradstreet 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: 4688557
    Abstract: A therapeutic traction chair for extending the middle and lower back including a seat receiving the patient and a backrest. The seat and backrest comprise a subframe pivotally mounted to a supporting frame wherein the angle of the backrest to the vertical may be adjusted. Arm supports extend from the backrest under the armpits of a seated patient, and the seat is vertically adjustable relative to the backrest to drop the seat away from the backrest transferring the patient's weight to the arm supports placing the spine and back under traction and extension. The adjustment of the subframe and seat position is through an electric-powered actuator, and the arm supports may be positioned to an inactive storage condition.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: August 25, 1987
    Assignee: Bradstreet Manufacturing Services, Inc.
    Inventor: Hal R. Bradstreet