Patents by Inventor Kenneth Ehn

Kenneth Ehn 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).

  • Electro-mechanical power angle snow plow
    Patent number: 7419011
    Abstract: The present invention provides a small electrical motor, coupled to the snow plow of a UTV or ATV via a mechanism which allows the plow blade to move in response to unexpected spikes in load. In one embodiment, a braking system is used to absorb the load force. In a second embodiment, a set of pulleys is used in conjunction with a belt, such that the belt will slip in the presence of excessive force. In a third embodiment, a rack and pinion mechanism is used in combination with a spring element to absorb the excessive load.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: September 2, 2008
    Assignee: Curtis International, Inc.
    Inventors: Marc D. Curtis, Kenneth Ehn
  • Electro-mechanical power angle snow plow
    Publication number: 20060005433
    Abstract: The present invention provides a small electrical motor, coupled to the snow plow of a UTV or ATV via a mechanism which allows the plow blade to move in response to unexpected spikes in load. In one embodiment, a braking system is used to absorb the load force. In a second embodiment, a set of pulleys is used in conjunction with a belt, such that the belt will slip in the presence of excessive force. In a third embodiment, a rack and pinion mechanism is used in combination with a spring element to absorb the excessive load.
    Type: Application
    Filed: April 12, 2005
    Publication date: January 12, 2006
    Inventors: Marc Curtis, Kenneth Ehn