Patents by Inventor Mike Harfst

Mike Harfst 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).

  • Saw chain link with offset footprint
    Patent number: 8136436
    Abstract: In various embodiments, a saw chain is provided that includes a rail engaging link that has an offset footprint within the link itself and/or with respect to other links in the chain that are adapted to ride on the same rail. Saw chains as provided may be used in a variety of applications, including but not limited to wood cutting and aggregate cutting applications.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: March 20, 2012
    Assignee: Blount, Inc.
    Inventors: Ian Osborne, Mike Harfst, Christopher Seigneur
  • CHAIN LINK SHARPENING METHOD AND APPARATUS
    Publication number: 20100005666
    Abstract: Embodiments provide various components of a chain saw, including saw chain elements, sprockets, and other fixtures, that may facilitate sharpening of cutter links during operation. In various embodiments, the components may increase stability during sharpening, provide nose mounted sharpening fixtures, and/or facilitate the resizing and/or reshaping of a sharpening element.
    Type: Application
    Filed: June 25, 2009
    Publication date: January 14, 2010
    Applicant: BLOUNT, INC.
    Inventors: Chris Seigneur, Mike Goettel, Mike Harfst, Mike Patterson, Mark Schoening, Scot Pyle, Ian Osborne
  • SAW CHAIN LINK WITH OFFSET FOOTPRINT
    Publication number: 20080110317
    Abstract: In various embodiments, a saw chain is provided that includes a rail engaging link that has an offset footprint within the link itself and/or with respect to other links in the chain that are adapted to ride on the same rail. Saw chains as provided may be used in a variety of applications, including but not limited to wood cutting and aggregate cutting applications.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 15, 2008
    Applicant: BLOUNT, INC., A DELAWARE CORPORATION
    Inventors: Ian Osborne, Mike Harfst, Christopher Seigneur
  • SAW CHAIN CUTTING LINK WITH TAPER
    Publication number: 20080110316
    Abstract: Embodiments of the invention disclose a cutter link adapted to move in a cutting direction along a guide rail of a guide bar. The cutter link includes a cutting portion that tapers from a leading portion adjacent a sharpened edge to a trailing portion rearward of the leading.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 15, 2008
    Applicant: BLOUNT, INC., A DELAWARE CORPORATION
    Inventor: Mike Harfst
  • Low vibration saw chain
    Patent number: 7293491
    Abstract: A saw chain is provided that has a plurality of cutter links coupled to an opposing tie strap, where the cutter link has a portion that protrudes past the tie strap to enable pivotal movement of the cutter link toward a central longitudinal axis of a guide bar.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: November 13, 2007
    Assignee: Blount, Inc.
    Inventors: Mike Harfst, Arlan Way, Chris Seigneur, Sandra Caruthers, legal representative, George Carruthers, deceased
  • Low vibration saw chain
    Publication number: 20070089586
    Abstract: A saw chain is provided that has a plurality of cutter links coupled to an opposing tie strap, where the cutter link has a portion that protrudes past the tie strap to enable pivotal movement of the cutter link toward a central longitudinal axis of a guide bar.
    Type: Application
    Filed: October 21, 2005
    Publication date: April 26, 2007
    Inventors: Mike Harfst, Arlan Way, Chris Seigneur, George Carruthers