Patents by Inventor Victor A. Dushku

Victor A. Dushku 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: 4243205
    Abstract: A manually operated device for use in tree falling comprises an elongated manually operable lever having a first pressure plate at one end and a second pressure plate hinged to the first pressure plate. A pressure member is connected in spaced relation to the pressure plates by two links pivotally interconnected directly with the pressure member at one of their respective ends. The other ends of the links are connected to the pressure plates. Raising the lever causes the first pressure plate to pivot in relation to the second pressure plate and the links to raise the pressure member which bears against the tree sawcut, consequently felling the tree.
    Type: Grant
    Filed: September 12, 1979
    Date of Patent: January 6, 1981
    Inventor: Victor A. Dushku
  • Patent number: 4030700
    Abstract: A manually operated log breaking device with a longitudinally extending lever member having a first pressure plate attached at one end portion and a second pressure plate attached to the first pressure plate in a hinged relationship, two sets of lever members extending from the first and second pressure plates in a hinged relationship to same and at the free end portions joined in a hinged relationship to a third set of lever members, having a third pressure plate attached in a hinged relationship at the free end portion of the third set of lever members, the pressure plates and lever members coacting as a link or gear system for increasing the resulting power of a manual force applied to the free end portion of the longitudinally extending lever member.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: June 21, 1977
    Inventor: Victor A. Dushku
  • Patent number: 3945065
    Abstract: The present invention provides a strong, but lightweight, multi-function, portable lumbering tool which can be easily carried by an individual lumberjack operating alone in the forest. The tool combines a number of functions which permit an individual lumberjack to fell even large trees in a desired direction including a breaking iron for tipping a tree, a wedge for preventing a saw from binding in a partially cut tree, a hook for dragging and rolling felled logs or for freeing a partially felled tree caught on another tree. The tool may also be used as a spade for clearing around the trunk of a tree or for general purpose digging.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: March 23, 1976
    Inventor: Victor A. Dushku
  • Patent number: RE30316
    Abstract: The present invention provides a strong, but lightweight, multi-function, portable lumbering tool which can be easily carried by an individual lumberjack operating alone in the forest. The tool combines a number of functions which permit an individual lumberjack to fell even large trees in a desired direction including a breaking iron for tipping a tree, a wedge for preventing a saw from binding in a partially cut tree, a hook for dragging and rolling felled logs or for freeing a partially felled tree caught on another tree. The tool may also be used as a spade for clearing around the trunk of a tree or for general purpose digging.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: July 1, 1980
    Inventor: Victor A. Dushku
  • Patent number: RE30533
    Abstract: A manually operated log breaking device with a longitudinally extending lever member having a first pressure plate attached at one end portion and a second pressure plate attached to the first pressure plate in a hinged relationship, two sets of lever members extending from the first and second pressure plates in a hinged relationship to same and at the free end portions joined in a hinged relationship to a third set of lever members, having a third pressure plate attached in a hinged relationship at the free end portion of the third set of lever members, the pressure plates and lever members coacting as a link or gear system for increasing the resulting power of a manual force applied to the free end portion of the longitudinally extending lever member.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: March 3, 1981
    Inventor: Victor A. Dushku