Patents by Inventor Dagfinn O. Amdal

Dagfinn O. Amdal 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: 4148454
    Abstract: An improved shelf bracket assembly has identical bracket members. Each bracket member is L-shaped and has a mounting portion forming one leg of the L and a flange portion forming the other portion. The mounting portion has a central raised section with an opening for receipt of a flange portion of the other bracket member. Each flange also includes a dimple and a cantilever finger. The dimple cooperates with the central raised section to maintain the bracket members in an intermediate prelocked condition. The cantilever finger cooperates with the central raised section to maintain the bracket members in a final locked condition.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: April 10, 1979
    Assignee: Keystone Consolidated Industries, Inc.
    Inventors: Reuben E. Carlson, Dagfinn O. Amdal
  • Patent number: 4109950
    Abstract: An improved door opener and latch device particularly useful for cabinets in recreational vehicles includes a bolt attached to a cabinet door and engageable either with a strike housing attached to the frame for the door or with a control plunger member attached to the frame. A hidden control plunger in the frame releases the bolt from the strike.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: August 29, 1978
    Assignee: Keystone Consolidated Industries, Inc.
    Inventor: Dagfinn O. Amdal
  • Patent number: 4087883
    Abstract: A door support bracket includes a slide member telescopically inserted in a housing bracket member. The housing bracket member is attached to a horizontal hung door by means of a swivel bracket. The free end of the slide member is pivotally attached to the frame for the door. The housing bracket member is formed from an elastic material and cooperates with cam members on the slide member to hold the door in an open position.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: May 9, 1978
    Assignee: Keystone Consolidated Industries, Inc.
    Inventor: Dagfinn O. Amdal