Patents Assigned to Thunderbolt Enterprises, Inc.
  • Patent number: 6012351
    Abstract: A method and apparatus for shifting gears in a multi-speed manual transmission. Shifting is accomplished through translation of a linear axial movement of a rotary channel cam indexer to an angular rotation of a rotary channel cam. The rotary channel cam has a cam groove supporting cam followers to translate angular rotation of the rotary channel cam to axial movement of a plurality of transmission shift shafts. The positioning of the plurality of transmission shift shafts places the multi-speed manual transmission into a desired gear.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: January 11, 2000
    Assignee: Thunderbolt Enterprises, Inc.
    Inventor: John A. Ysker
  • Patent number: 5984342
    Abstract: A towing apparatus for motorcycles and recreational vehicles having a single-wheel design. A storage box is supported by the single wheel through a swing arm and dampening assembly arrangement which dampens and absorbs shock and vibration from the ground surface. The swing arm provides movement of the single wheel along a plane parallel to the plane of rotation of the vehicle wheels. The towing apparatus couples to the trailer hitch of the motorcycle or recreational vehicle through a universal type mounting hitch which maintains the trailer in rotational alignment with the trailer hitch.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: November 16, 1999
    Assignee: Thunderbolt Enterprises, Inc.
    Inventor: John A. Ysker
  • Patent number: D378996
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: April 29, 1997
    Assignee: Thunderbolt Enterprises, Inc.
    Inventor: John A. Ysker