Patents by Inventor Timothy O. Armstrong

Timothy O. Armstrong 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: 4838543
    Abstract: An exercise apparatus having a unique support frame including a base, a first upwardly extending member having a handgrip mounted on its upper end, and a second buttress member extending from the base to a point between the ends of the first member. A pair of foot beams pivotally mounted on one of the upwardly extending members. A rope interconnecting the foot beams and extending over a pully mounted on the support frame above the foot beams, a pair of shock absorbers pivotally connected to the foot beams at one end and connected to the support frame at a point above the foot beams at their other end.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: June 13, 1989
    Assignee: Precor Incorporated
    Inventors: Timothy O. Armstrong, John W. Bull
  • Patent number: 4770411
    Abstract: An ergometer (28) is employed on an exercise cycle (10) having a flywheel (20) rotated by pedals (16). A selectively tensionable endless belt (26) extends around the perimeter of flywheel (20) and a separate strap (160) is attached to the endless belt (26) to extend tangentially from the flywheel (20). The opposite end of strap (160) is connected to one end of an indicator plate (162) with the other end of the indicator plate attached to one end of an extension spring (164). The extension spring (164) imparts a tensile load on strap (160) equal to the opposing tensile load on the strap (160) imposed by the frictional force acting between endless belt (26) and the flywheel (20). This force level is sensed by the movement of the indicator plate (162) which coincides with the extension of spring (164), which plate movement corresponds to the workout level being achieved.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: September 13, 1988
    Assignee: Precor Incorporated
    Inventors: Timothy O. Armstrong, Larry J. Graf, William W. Potts
  • Patent number: D296225
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: June 14, 1988
    Assignee: Venture International Products, Inc.
    Inventor: Timothy O. Armstrong
  • Patent number: D296774
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: July 19, 1988
    Assignee: Venture International Products, Inc.
    Inventor: Timothy O. Armstrong
  • Patent number: D296809
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: July 19, 1988
    Assignee: Venture International Products, Inc.
    Inventor: Timothy O. Armstrong
  • Patent number: D300046
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: February 28, 1989
    Assignee: Precor Incorporated
    Inventors: Timothy O. Armstrong, David B. Smith, Randolph F. Miller
  • Patent number: D303414
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: September 12, 1989
    Assignee: Precor Incorporated
    Inventors: Timothy O. Armstrong, Gary M. Bang, Kenneth G. Real