Patents Assigned to Hultafors AB
  • Shock absorbing hammer
    Patent number: 5992270
    Abstract: A shock absorbing hammer, comprising an elongated shaft (2) and a hammer head (1). An end portion (2a) of the shaft is obliquely oriented in a somewhat wider recess (6) in the hammer head (1) so as to permit a limited pivotal movement in one angular direction, the movement being damped by a shock absorbing material in said recess.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: November 30, 1999
    Assignee: Hultafors AB
    Inventors: Joakim Hedelin, Hans Brok
  • Hammer with recoil dampening mechanism and counterweight
    Patent number: 5916338
    Abstract: A hammer, preferably a workshop hammer including a head and an adjoining handle. The head is provided with at least one impact surface and a cavity which is at least partly filled with particulate material so as to dampen the recoil of the hammer. The hammer reduces recoil, rotation, and vibration of the hammer whereby an ergonomic hammer is obtained. The hammer is provided with a rigid longitudinally extending element in the handle and a counterweight at a free end thereof.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: June 29, 1999
    Assignee: Hultafors AB
    Inventors: H.ang.kan Bergkvist, Olle Bobjer, Bo Lindovist
  • Hammer
    Patent number: D605922
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: December 15, 2009
    Assignee: Hultafors AB
    Inventor: Pär Reinius
  • Hammer
    Patent number: D384564
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: October 7, 1997
    Assignee: Hultafors AB
    Inventors: Maria Bengtsson, John Grieves, Olle Torgny