Patents by Inventor Dean M. Bigelow

Dean M. Bigelow 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: 11346438
    Abstract: Greasable idler pulleys and related kits and methods are disclosed. The greasable idler pulley has a rotating body, a bearing, to enable the rotating body to rotate with respect to a shaft, and grease fitting defined through the rotating body. The rotating body may have a bearing seal cap having an orifice and a rotator. The grease fitting may be in fluid communication with the bearing through the orifice in the bearing seal cap. Kits are also contemplated, such as a kit for retrofitting a non-regreasable idler pulley including a rotator to a regreasable idler pulley. Methods may include methods of producing a regreasable idler pulley from a non-regreasable idler pulley.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: May 31, 2022
    Assignee: F.P. BOURGAULT TILLAGE TOOLS LTD.
    Inventors: Joseph L. Bourgault, Frank Nagy, Roberto P. Soriano, Dean M. Bigelow, Dylan Chadwick Noble Theis
  • Publication number: 20190257409
    Abstract: Greasable idler pulleys and related kits and methods are disclosed. The greasable idler pulley has a rotating body, a bearing, to enable the rotating body to rotate with respect to a shaft, and grease fitting defined through the rotating body. The rotating body may have a bearing seal cap having an orifice and a rotator. The grease fitting may be in fluid communication with the bearing through the orifice in the bearing seal cap. Kits are also contemplated, such as a kit for retrofitting a non-regreasable idler pulley including a rotator to a regreasable idler pulley. Methods may include methods of producing a regreasable idler pulley from a non-regreasable idler pulley.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 22, 2019
    Inventors: Joseph L. BOURGAULT, Frank NAGY, Roberto P. SORIANO, Dean M. BIGELOW, Dylan Chadwick Noble THEIS
  • Patent number: 6966270
    Abstract: A seeding tool for depositing seeds and fertilizer within a furrow including a knife opener having a liquid wing projecting from the side thereof for providing and maintaining spacing between the seeds and fertilizer. Preferably, the liquid wing is a tungsten carbide insert secured to the side of the knife opener, and has a wing shaped structure which is shaped and sized to space the fertilizer apart from the seeds, to protect the end of the tube from which fertilizer is dispensed, and to present a small leading surface which displaces the soil easily and presents minimal resistance. Preferably, the largest, side surface of the liquid wing insert is inclined toward the side of the knife opener from a widest lower, rear member adjacent the end of the fertilizer tube to a narrower top, front member near a leading end of the knife opener.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: November 22, 2005
    Assignees: Kennametal Inc., F. P. Bourgault Tillage Tools Ltd.
    Inventors: Don C. Rowlett, Linus I. Yeager, Dean M. Bigelow