Patents by Inventor Clas Abrahamsson

Clas Abrahamsson 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: 6135021
    Abstract: A nutcracker comprising an anvil, an impact member, the anvil and the impact member being arranged to receive a nut therebetween for cracking, a striking member, and a guiding device for guiding the impact member in a movement towards and away from said anvil and for guiding the striking member in a movement towards and away from said impact member, wherein the striking member is arranged to be forced by its own weight against the impact member under the attraction of gravity so as to impart a cracking force to the shell of a nut received between said impact member and said anvil.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: October 24, 2000
    Inventor: Clas Abrahamsson
  • Patent number: 5704374
    Abstract: The present invention relates to a hand-operated wood-splitter with striking weight (1) movable along a rod (2) connected at its lower end to an axe or splitting wedge (5). The invention is characterized in that the rod (2) for the striking weight (1) is provided at its upper end with a stop nut or other stop means (12). The axe, etc. is secured to a swinging arm (8) movable along a second rod (7) and rotatable around this. This latter rod is secured to a stamp (10) or a stand. At the lower end of the rod for the striking weight is a nut or ring which is movable to a limited extent in vertical direction in order to reduce the stresses.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: January 6, 1998
    Inventor: Clas Abrahamsson