Patents by Inventor Allan Andersson

Allan Andersson 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).

  • Arrangement in slipforms
    Patent number: 4312492
    Abstract: In a slipform arrangement comprising a plurality of oblong, substantially rectangular mold plates arranged sequentially in a manner such that their end portions overlap each other there is provided an elongate post-like mold plate support means adjacent a short edge of an associated mold plate such as to support said plate in spaced relationship therewith, thereby to leave a gap for accommodating an end portion of a sequential mold plate, and tensioning means for creating in the region of said short edge a tensioning force directed substantially in the long direction of the post-like mold support. That part of the mold plate located nearest said short edge can be slightly angled towards the mold plate support means.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: January 26, 1982
    Assignee: Interform Brodrene Pedersen AB
    Inventor: Allan Andersson
  • Tubular drill tool
    Patent number: 4212569
    Abstract: The drill tool of the present invention comprises a profiled tubular drill shank with a drill head, which consists of the free part of the drill shank with guide strips and cutting element fastened to it, characterized in that the cutting element (3) is fixed in a position pressed or forged into the drill shank (1).
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: July 15, 1980
    Assignee: Sandvik Aktiebolag
    Inventors: Allan Andersson, Bert Bergstrom
  • Planing tool
    Patent number: 4088165
    Abstract: Planing tool comprising a front part movably connected to a rear part and having surfaces which face each other and are movable towards and away from each other, said surfaces being inclined in the direction of forward push of the tool and having means for fixing a bit therebetween, said surfaces and consequently said parts of the tool relative to each other, and means for mutually pressing together said surfaces and locking said parts of the tool together with the bit clamped and fixed with respect to its position between said surfaces.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: May 9, 1978
    Inventor: Allan Andersson
  • Combination tool
    Patent number: 4003418
    Abstract: A combination tool comprising a ball-shaped handle member and at least three substantially straight work-engaging members projecting substantially radially from said ball-shaped handle member, the tips of said work-engaging members defining a plane spaced from the surface of said handle member. At least three orientation rings are provided, each extending along the intersection of the surface of the handle member with a plane extending through the handle member center at right angles to one of the work-engaging members.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: January 18, 1977
    Inventor: Allan Andersson