Patents by Inventor David L. Helterbrand

David L. Helterbrand 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: 5232270
    Abstract: There is provided a metallic wheel having multiple planes of wire-like spokes and a rim for mounting a tire, and a method for fabricating the spoked wheel members entirely from flat sheet metal. The wheel comprises a pair of inner wheel members, a pair of outer wheel members, an externally threaded shaft, and a spacer. The inner and outer wheel members each have a peripheral rim, a central hub, and a plurality of spokes extending generally inward from the peripheral rim to the central hub. The inner wheel members have a plurality of pins projecting from their peripheral rims which mate with correspondingly arranged holes in the peripheral rims of the outer wheel members. The externally threaded shaft threadably mates with internally threaded orifices in the hubs of the outer members.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: August 3, 1993
    Inventor: David L. Helterbrand
  • Patent number: 4805817
    Abstract: A locking bar adapted for use with a spare tire carrier having a tire carriage slideable in respective tracks of a pair of side members between a storage and a retracted position. The side members are attached on the underside of the vehicle. A transverse locking bar is rotatable within a carriage cylindrical part, with ends lockably engaged to the side members. A user can grasp the locking bar and move the carriage between a retracted or extended position, as well as rotate the locking bar to effect the locking or unlocking of the carriage with respect to the side members.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: February 21, 1989
    Inventor: David L. Helterbrand
  • Patent number: 4765051
    Abstract: Disclosed is a spare tire carrier adapted for supporting a spare tire on an underside of a vehicle. The carrier comprises a pair of fixed track members attached to the vehicle underside for pivotably and slidably mounting a carriage adapted to receive the spare tire. Each of the tracks members has an inclined guide slot for receiving rollers and guide pins of the carriage. The rollers and guide pins are disposed in the guide slots and secured to the carriage approximately intermediate the front end and rear end of the carriage. The carriage is movable relative to the track members in the guide slots between a retracted elevated position and a projected lowered position enabling convenient access to the tire. An improved locking mechanism is disclosed comprising a rotatable carriage locking bar.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: August 23, 1988
    Inventor: David L. Helterbrand
  • Patent number: 4711382
    Abstract: Disclosed is a spare tire carrier adapted for supporting a spare tire on an underside of a vehicle. The carrier comprises a pair of fixed track members attached to the vehicle underside for pivotably and slidably mounting a carriage adapted to receive the spare tire. Each of the tracks members has an inclined guide slot for receiving rollers and guide pins of the carriage. The rollers and guide pins are disposed in the guide slots and secured to the carriage approximately intermediate the front end and rear end of the carriage. The carriage is movable relative to the track members in the guide slots between a retracted elevated position and a projected lowered position enabling convenient access to the tire. An improved locking mechanism is disclosed comprising a rotatable carriage locking bar.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: December 8, 1987
    Inventor: David L. Helterbrand