Patents by Inventor David Grapes

David Grapes 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).

  • Marine Winch with Winch-Line Engaging Roller
    Publication number: 20080061277
    Abstract: A manual marine barge winch includes a housing, a winch-line holding drum mounted for rotation on the housing, a winch-line coupled to the drum and adapted to be wound onto and off of the holding drum to tension and pay out the winch, a drum drive for rotating the drum to tension and to pay out the winch line, and at least one winch-line engaging roller adapted to engage the winch line at least during tensioning of the winch. Preferably at least one of the winch line engaging rollers is a powered or driven roller for driving the winch line.
    Type: Application
    Filed: March 21, 2007
    Publication date: March 13, 2008
    Applicant: W. W. PATTERSON COMPANY
    Inventors: David Grapes, Russell Mayhew
  • Single Stack Manual Marine Winch
    Publication number: 20080048162
    Abstract: A manual marine winch includes a winch line including a wire rope, a pair of spaced side plates, a rotating spool assembly supported between the side plates and including a drum, wherein the drum defines a wire rope stacking space on the drum for storing a single stack of wire rope, and a manually actuated control for spooling and un-spooling the wire rope in the wire rope stacking space on the drum.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 28, 2008
    Applicant: W. W. PATTERSON COMPANY
    Inventors: David Grapes, Russell Mayhew, Eric Konvolinka, Erik Arlet
  • Manual marine winch internal gearing
    Publication number: 20050133772
    Abstract: A manual swivel winch of the present invention includes internal drum gearing. The winch has a pair of spaced side plates, a rotating drum supported between the side plates, an internal drum gear coaxially mounted with the rotating drum, and a pinion drive gear engaging and rotating the drum gear.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 23, 2005
    Applicant: W. W. Patterson Company
    Inventors: Justin Dow, Erik Arlet, David Grapes, Richard Topping, Eric Konvolinka