Patents by Inventor Jorgen A. R. Rodert

Jorgen A. R. Rodert 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).

  • Device in impact machines
    Patent number: 5005656
    Abstract: Device in impact machines. The device comprises a number of rods (6) provided with projections (51). The rods are journalled in a surrounding set of tubes (7) by means of elastic bushings (52,53) which are provided with grooves (57) through which said projections can be passed.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: April 9, 1991
    Assignee: Atlas Copco MCT AB
    Inventor: Jorgen A. R. Rodert
  • Device for efficient energy transfer and damping of impact drilling machines
    Patent number: 4993504
    Abstract: Device in impact machines. The device comprises a first chamber (5) which is connected to an accumlator (6) and the pressure of which is used to hold together a set of rods (2) forming part of the drill tool. Furthermore there is a second chamber (7) to damp the recoil from the set of rods.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: February 19, 1991
    Assignee: Atlas Copco MCT AB
    Inventors: Jorgen A. R. Rodert, Kurt H. Andersson