Patents by Inventor Roger Owen Durham

Roger Owen Durham 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).

  • Audible enrichment bleed warning device for fuel-injected engines
    Patent number: 4051829
    Abstract: An audible enrichment bleed warning device, for fuel-injected engines having an enrichment bleed, emits an audible warning that the enrichment bleed is open and extra fuel is being delivered to the engine, reminding the operator to close it after the engine has warmed. The warning device may be a horn or a whistle.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: October 4, 1977
    Inventor: Roger Owen Durham
  • Rim strip for bicycle wheels
    Patent number: 4043373
    Abstract: A flexible bicycle rim strip has two free ends and a securing hole near each end. The free ends insert through a rectangular valve stem hole in the rim, and are secured to adjacent spoke nipples.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: August 23, 1977
    Inventor: Roger Owen Durham
  • Two-position pedal for bicycles
    Patent number: 4004468
    Abstract: A two-position bicycle pedal having heel stops at different distances from the spindle, such that either the arch or ball of the foot is positioned over the spindle. A heel step is provided, for support of the heel, when the arch of the foot is over the spindle.
    Type: Grant
    Filed: December 30, 1974
    Date of Patent: January 25, 1977
    Inventor: Roger Owen Durham