Patents by Inventor Thore Johnsen

Thore Johnsen 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: 5236169
    Abstract: A shock absorbing bicycle seat mounting post assembly is mounted in a hollow tubular socket member, by means of a binder clamp, in the frame of a bicycle. The shock absorber includes a compression spring which will effectively absorb shocks which are carried through the frame when the wheels encounter obstacles and holes when traveling along the ground. The bicycle seat mounting post assembly includes a number of shims which will adapt the post assembly to varying sizes of bicycle frames. A bellows is provided to keep dirt and dust out of the spring area and protect skin and fingers from being pinched. Stabilization is enhanced by the provision of a piston at the lower end of the movable shaft upon which the seat is attached. A variable volume reducing device may be positioned below the seat mounting post to adjust the volume of air trapped below the piston.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: August 17, 1993
    Assignee: T.J.S.W. Inc.
    Inventor: Thore Johnsen
  • Patent number: 5236170
    Abstract: A shock absorbing bicycle seat mounting post assembly is mounted in a hollow tubular socket member, by means of a binder clamp, in the frame of a bicycle. The shock absorber includes a compression spring which will effectively absorb shocks which are carried through the frame when the wheels encounter obstacles and holes when traveling along the ground. The bicycle seat mounting post assembly includes a number of shims which will adapt the post assembly to varying sizes of bicycle frames. A bellows is provided to keep dirt and dust out of the spring area and protect skin and fingers from being pinched. Stabilization is enhanced by the provision of a piston at the lower end of the movable shaft upon which the seat is attached. A variable volume reducing device may be positioned below the seat mounting post to adjust the volume of air trapped below the piston.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: August 17, 1993
    Assignee: T.J.S.W. Inc.
    Inventor: Thore Johnsen
  • Patent number: 5060493
    Abstract: A pin lock device which can be permanently attached to the frame of a sliding curtain shutter type door. The pin lock device has a rigid body with a bore which may be attached to the frame of the shutter type door. A bolt located in the bore is movable between first and second positions in the bore, but cannot be completely withdrawn. The bolt can be immobilized in the locked position in the rigid body, thereby allowing the sliding shutter door to be locked, and is restrained from being fully withdrawn in the unlocked position to allow the bolt to be safe from loss or tampering when the sliding shutter door is opened.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: October 29, 1991
    Inventor: Thore Johnsen
  • Patent number: 5030029
    Abstract: An improved road barrier for channelizing traffic is provided and consists of a hollow pyramidal structure having a frustrum top. A base is formed on the bottom for stabilizing the pyramidal structure on a flat surface. A plurality of spaced apart bands are formed on the pyramidal structure for dividing it into a plurality of tiers with each tier having a plurality of panel faces so as to add strength to the pyramidal structure. At least one rib is formed on the frustrum top for mounting a warning light thereto.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: July 9, 1991
    Inventor: Thore Johnsen
  • Patent number: 4997232
    Abstract: A shock absorbing bicycle seat mounting post is provided and is mounted upon a hollow tubular socket member havng a binder clamp of a frame of a bicycle. The shock absorber will effectively absorb shocks which are carried through the frame when the wheels encounter obstacles and holes when traveling along the ground. In a modification the shock absorbing bicycle seat mounting post will also allow the bicycle seat assembly to rotate thereabout for additional adjustment.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: March 5, 1991
    Inventor: Thore Johnsen
  • Patent number: 4931708
    Abstract: A power assist device for raising and lowering an independent band spring door is disclosed. The present invention includes a prime mover, an operator controlling the prime mover, a band spring cage, and a roller chain gear set mechanically connecting the operator to the band spring cage so that there is no back lash in the gear set.
    Type: Grant
    Filed: October 5, 1989
    Date of Patent: June 5, 1990
    Inventor: Thore Johnsen