Patents Assigned to William M. Betts, Jr.
  • Patent number: 3999776
    Abstract: A tightly coiled spring having high initial tension has one end thereof press-fitted over a hub member attached to the chassis and the other end thereof press-fitted over another hub member from which there extends a flap holder support arm.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: December 28, 1976
    Assignee: William M. Betts, Jr.
    Inventor: William M. Betts, Sr.