Patents by Inventor James P. Carlyle

James P. Carlyle 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).

  • Chain control apparatus
    Patent number: 5013285
    Abstract: Chain control apparatus is provided for a bicycle having a chain journaled around spaced apart gears so as to have an upper run and a lower run wherein the chain control apparatus limits movement of the lower run in directions away from the upper run when the bicycle is operated in rough terrain or is used in jumping operations and wherein the chain control apparatus is mounted for permitting pivotal movement thereof around a generally horizontal axis and around at least one generally vertical axis.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: May 7, 1991
    Inventor: James P. Carlyle
  • Chain control apparatus
    Patent number: 4919644
    Abstract: Chain control guide apparatus is provided for a bicycle having a chain journaled around spaced apart gears so as to have an upper run and a lower run wherein the chain control guide apparatus, such as an idler pulley, limits movement of the lower run in directions away from the upper run when the bicycle is operated in rough terrain or is used in jumping operations.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: April 24, 1990
    Inventor: James P. Carlyle