Patents by Inventor Craig H. Edwards

Craig H. Edwards 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: 6116114
    Abstract: A light-weight, strong and rigid rotatable spindle assembly utilizing a two-piece spindle suitable for employment in a variety of spindle applications, and in particular in a bicycle crankshaft assembly. Each spindle piece is integrally joined to a crank arm, and this joint, as well as the joint of the crank arm and the pedal tube, is reinforced with gussets. The two spindle pieces themselves are connected by means of a simple allen bolt within the interior of the bottom bracket shell, and this connection is thereby protected from the elements. As the two spindle pieces are pulled together by the allen bolt, they exert opposing forces on the inner race of a cartridge bearing, thereby fixing the lateral location of the spindle within the bottom bracket without exerting pre-load on the bearings. Proper alignment is easily accomplished by means of one or more spacers placed on either side of this inner race of the cartridge bearing.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: September 12, 2000
    Inventor: Craig H. Edwards
  • Patent number: 5865069
    Abstract: A bicycle handlebar stem assembly, including a laterally displaceable fork tube, a handlebar stem with a hollow portion which fits around the fork tube, and an expanding device capable of displacing the fork tube perpendicularly to its axis tightly against the handlebar stem hollow portion; thus securely fixing the handlebar stem to the fork tube.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: February 2, 1999
    Inventor: Craig H. Edwards
  • Patent number: 5766106
    Abstract: A crankset assembly employing a steel spider construction without adding excessive weight, and accommodating virtually unlimited combinations of bolt circle diameters and types of chain rings that include the crankset assembly. The crankset assembly may include a crank arm, a spindle piece attached to the crank arm, a radially extending spider fixed to the crankset assembly, at least two chain rings supported on the crankset assembly by the spider, and a plurality of connector elements attached to the spider at a corresponding plurality of spaced positions about the spider central axis. At least one of the chain rings is mounted to, and solely supported by, the plurality of connector elements.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: June 16, 1998
    Inventor: Craig H. Edwards
  • Patent number: 5493937
    Abstract: A light-weight, strong and rigid bicycle crankshaft assembly utilizing a two-piece spindle. Each spindle piece is integrally joined to a crank arm, and this joint, as well as the joint of the crank arm and the pedal tube, is reinforced with gussets. The two spindle pieces themselves are connected by means of a simple allen bolt within the interior of the bottom bracket shell, and this connection is thereby protected from the elements. As the two spindle pieces are pulled together by the allen bolt, they exert opposing forces on the inner race of a cartridge bearing, thereby fixing the lateral location of the spindle within the bottom bracket without exerting pre-load on the bearings. Proper alignment is easily accomplished by means of one or more spacers placed on either side of this inner race of the cartridge bearing.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: February 27, 1996
    Inventor: Craig H. Edwards
  • Patent number: 5251494
    Abstract: A simple, direct stem fixing device of minimal weight and material. The stem fixing device utilizes an expansion nut and a fixing bolt which connects the expansion unit to the stem. The fixing bolt connects to the stem by a mount set within the lower portion of the vertical tube, thereby minimizing the necessary length and weight of the fixing bolt. Alternate embodiments of this invention also allow the upper end of the vertical tube to be permanently closed, and provide a separating bolt to free the expansion nuts from its tightened position.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: October 12, 1993
    Inventor: Craig H. Edwards