Patents by Inventor Jarl J. Blomberg

Jarl J. 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: 4081038
    Abstract: A hand held impact device comprising a housing and an impact mechanism located therein. The housing is provided with an opening at its front end through which opening a working tool is introducable to receive impacts from the impact mechanism. A maneuver handle for direct, manual guidance of the working tool is freely displaceable along the working tool shank and is formed with a rear annular recess for being attachable to a cylindrical neck portion on the housing. The neck portion is coaxial with the working tool opening and forms a coupling means for the maneuver handle. The neck portion is provided with a groove with which spring biased balls on the maneuver handle are arranged to cooperate in order to releasably retain the maneuver handle in its supported position on the housing. The maneuver handle comprises a steel socket and a rubber sleeve which extends ahead of the steel socket to form a resilient, vibration insulating grip element.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: March 28, 1978
    Assignee: Atlas Copco Aktiebolag
    Inventors: Sture R. Andersson, Jarl J. Blomberg, Heino Elmessaar