Patents by Inventor Lars T. Skogsberg

Lars T. Skogsberg 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).

  • Vibration insulated power tool handle
    Patent number: 5170532
    Abstract: A vibration insulated power tool handle, comprising a tubular grip portion (10), a mounting means (11) for rigid mounting on a tool housing, and an elastic vibration insulating leaf spring membrane (12) interconnecting the grip portion (10) and the mounting means (11). The spring membrane (12) is formed with a central opening (19) for receiving a screw (21) of the mounting means (11) and is connected by its periphery to a socket portion (16) on the grip portion (10).
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: December 15, 1992
    Assignee: Atlas-Copco Tools AB
    Inventors: Mats C. Holmin, Sten H. Olsson, Lars T. Skogsberg
  • Vibration damped hand held rotary grinding machine
    Patent number: 5125189
    Abstract: A vibration damped hand held rotary grinding machine comprising a housing (10) with at least one handle (17, 18), a rotation motor (11), an output shaft (13) drivingly coupled to the motor and having a mounting (14) for attachment of a grinding wheel (15), and a sector-shaped non-resilient safe guard (19) which is rigidly attached to the housing (10) and surrounding partially the grinding wheel (15) and which has an arc-shaped rim portion (20) encircling partially the grinding wheel circumference. A vibration damping inertia device (22; 22a, 22b) is rigidly associated with the safe guard (19) on or adjacent the rim portion (20), such that the center of gravity of substantially all axial plane cross sections through the inertia device (22 22a, 22b) is located at a radius (R.sub.1) of at least 90% of the rim portion (20) radius (R). Preferably, the safe guard (19) is semicircular and th einertia device (22; 22a, 22 b) extends from both ends of the safe guard rim portion (20).
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: June 30, 1992
    Assignee: Atlas Copco Tools AB
    Inventors: Mats C. Holmin, Sten H. Olsson, Lars T. Skogsberg
  • Rotary pneumatic tool with vibration absorbing means
    Patent number: 4140446
    Abstract: A rotary pneumatically powered tool comprising a housing, a motor assembly mounted in the housing and comprising a pneumatic motor for rotating an output shaft, and vibration absorbing mounting means for supporting and vibration insulating the motor assembly relative to the housing. The vibration absorbing means comprises a resilient connection piece for cramping the motor assembly axially in the housing and for interconnecting air passages in the motor assembly and the housing so as to enable communication of pressure air to and from the pneumatic motor of the motor assembly.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: February 20, 1979
    Assignee: Atlas Copco Aktiebolag
    Inventors: Harry G. Fernstrom, Bo R. Lindqvist, Knut C. Schoeps, Lars T. Skogsberg