Patents by Inventor Calvin W. Montgomery

Calvin W. Montgomery 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: 5226868
    Abstract: An exercise device including a push-up board and two push-up handles. The two C-shaped push-up handles are mounted along various positions of the push-up board. Only one end of the C-shaped handles is located within symmetrically-spaced holes of the push-up board. Since only one end of the C-shaped handle is secured within the board and with the shape of the inserted handle end being round, the C-shaped handles are rotatable about the anchored end to provide a vast array of movement and varied exercise routines. A position most comfortable for the user is obtainable by rotation of the handle about the one end located in the push-up board. Numerous pre-set positions are available for doing push-ups to obtain a maximum health benefit from basic push-ups. Further, an adjustment is provided for maximum strength development and wrist comfort when doing difficult push-ups through a series of wide to narrow hand separation positions.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: July 13, 1993
    Inventor: Calvin W. Montgomery
  • Patent number: 5105766
    Abstract: A container which may be hung or suspended dispenses feed through an aperture therein upon contact by an animal with a feeder rod extending below the container. The flow of feed from the container is regulated by a flow adjustment means which controls the dispensation of the feed from the container by means of an interaction with the feeder rod.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: April 21, 1992
    Inventor: Calvin W. Montgomery
  • Patent number: 4923194
    Abstract: A pull-up or push-up exercise device includes two bars having parallel inclined portions. A transverse cross bar is secured between the two bars and slidably mounted to vary the height of the cross bar on the inclined portion of the two bars. Two platforms hold the cross bar on the exercise bars. The cross bar is in a "W" configuration to provide slanted gripping portions for a natural hold without wrist strain throughout pull-up and push-up exercise.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: May 8, 1990
    Inventor: Calvin W. Montgomery
  • Patent number: 4749188
    Abstract: A weight bar assembly in which weight supporting elements at each of a main bar support a variable number of weights. The weights have a center of gravity which is laterally displaced to one side of the main bar. The main bar of the assembly is supported at a distance vertically above the ground at all times, either by a vertical connection bar or by the weights themselves. The weight bar assembly further includes handles connected to the main bar and including gripping portions which are laterally displaced to the same side of the main bar as the center of gravity of the weights.
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: June 7, 1988
    Inventor: Calvin W. Montgomery
  • Patent number: 4707920
    Abstract: The retractable point protector of the present invention is used in combination with a knife blade. The knife blade is either made of a single piece of stainless steel with its handle or is of a folding knife type which folds into its handle. The retractable point protector is journalled in the handle to pivot from a rest position to an extended position about an axis extending perpendicular to the longitudinal axis of the knife and its handle.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: November 24, 1987
    Inventor: Calvin W. Montgomery
  • Patent number: 4607432
    Abstract: The present invention discloses a hunting knife which includes a hunting knife blade and a retractable gut hook. When the gut hook is in its retracted position, the hunting knife blade is fully operational for normal usage. When the gut hook is in its fully extended position, the point of the hunting knife blade is protected from cutting the entrails of an animal being field dressed and the skin of the animal is elevated for cutting by the hunting knife blade.
    Type: Grant
    Filed: January 24, 1985
    Date of Patent: August 26, 1986
    Inventor: Calvin W. Montgomery