Patents by Inventor Dallas J. Larson

Dallas J. Larson 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).

  • Rotary internal combustion engine
    Patent number: 4178900
    Abstract: A rotary internal combustion engine comprising a generally cylindrical stator member having two pairs of sockets located in the interior peripheral wall thereof, and a rotor member mounted to rotate within the stator member. Two pairs of opposing wedges are pivotally mounted at their vertices on the interior peripheral wall of the stator member to pivot in and out of respective ones of the sockets as the rotor member is caused to rotate within the stator member. The rotor member has an outermost periphery which, in cooperation with the peripheral wall of the stator member and the two pairs of pivotal wedges, define at selected paint in time and for brief a combustion cavity and a compression cavity therebetween. The instantaneous combustion cavity and compression cavity are disposed on opposite sides of the stator member adjacent the peripheral wall thereof.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: December 18, 1979
    Inventor: Dallas J. Larson
  • Rotary internal combustion engine
    Patent number: 4033300
    Abstract: A rotary internal combustion engine comprising a generally cylindrical stator member having two pairs of sockets located in the periphery thereof, and a rotor member mounted to rotate about the stator member. Two pairs of opposing wedges are pivotally mounted at their vertices on the periphery of the stator member to pivot in and out of respective ones of the sockets as the rotor member is caused to rotate about the stator member. The rotor member has side walls and an interior peripheral wall which, in cooperation with the periphery of the stator member and the two pairs of pivotal wedges, define a combustion cavity and a compression cavity there between. The combustion cavity and compression cavity are disposed on opposite sides of the stator member adjacent the periphery thereof.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: July 5, 1977
    Inventor: Dallas J. Larson
  • Rotary internal combustion engine
    Patent number: 3986483
    Abstract: A rotary internal combustion engine includes an annular stator member having two pairs of sockets located in the periphery thereof, and a rotor member mounted to rotate about the stator member. The rotor member has side walls and an interior peripheral wall which, in cooperation with the periphery of the stator member, define a combustion cavity and a compression cavity therebetween. The combustion cavity and compression cavity are disposed on opposite sides of the stator member adjacent the periphery thereof. Two pairs of wedge-shaped vanes are pivotally mounted at their vertices on the periphery of the stator member to pivot in and out of respective ones of the sockets as the rotor member is caused to rotate about the stator member. A cam track is defined in the side walls of the rotor member to guide cam followers extending from the sides of each vane such that the vanes are caused to pivot in and out of the sockets and to maintain sliding contact with the interior peripheral wall of the rotor member.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: October 19, 1976
    Inventor: Dallas J. Larson