Patents by Inventor Ingvar M. Blomberg

Ingvar M. Blomberg 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: 4886405
    Abstract: A device for bolting an article to a wall board, using a pre-drilled hole in the wall, is disclosed. The device comprises a volt, and an anchoring portion threadedly mounted to the bolt. This anchoring portion is resiliently deformable in one direction which allows it to pass one way through the hole and has a normal configuration wherein it grasps the inside surface of the wall board to hold the attached bolt against removal from the hole. The anchoring portion comprises a resilient, ribbon-like strip spirally wound into a cone-like configuration and resiliently held therein with inner and outer edge portions of the strip overlapping and in close mutual proximity. A nut for receiving the bolt is affixed to a first, inner end of the spirally wound strip and is held with its bore aligned with the central axis of the conical configuration. The anchor may be uncoiled when the turns of the spiraling strip are urged apart in one direction axially.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: December 12, 1989
    Inventor: Ingvar M. Blomberg