Patents by Inventor Ric Boyd

Ric Boyd 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).

  • Mining machine with multiple cutter heads
    Patent number: 10876399
    Abstract: A mining machine includes a frame, a boom supported for pivoting movement relative to the frame, and a cutter head pivotably coupled to the boom. The cutter head includes a housing, a cutter shaft coupled to the housing, a cutting disc, and an excitation mechanism. A second portion of the cutter shaft extends parallel to a cutter axis. The cutting disc is coupled to the second portion of the cutter shaft and is supported for free rotation relative to the cutter shaft about the cutter axis. The cutting disc includes a plurality of cutting bits defining a cutting edge. The excitation mechanism includes an exciter shaft and a mass eccentrically coupled to the cutter shaft. The excitation mechanism is coupled to the first portion of the cutter shaft. Rotation of the exciter shaft induces oscillating movement of the second portion of the cutter shaft and the cutting disc.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: December 29, 2020
    Assignee: Joy Global Underground Mining LLC
    Inventors: Peter A. Lugg, Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd
  • MINING MACHINE WITH MULTIPLE CUTTER HEADS
    Publication number: 20200011173
    Abstract: A mining machine includes a frame, a boom supported for pivoting movement relative to the frame, and a cutter head pivotably coupled to the boom. The cutter head includes a housing, a cutter shaft coupled to the housing, a cutting disc, and an excitation mechanism. A second portion of the cutter shaft extends parallel to a cutter axis. The cutting disc is coupled to the second portion of the cutter shaft and is supported for free rotation relative to the cutter shaft about the cutter axis. The cutting disc includes a plurality of cutting bits defining a cutting edge. The excitation mechanism includes an exciter shaft and a mass eccentrically coupled to the cutter shaft. The excitation mechanism is coupled to the first portion of the cutter shaft. Rotation of the exciter shaft induces oscillating movement of the second portion of the cutter shaft and the cutting disc.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Inventors: Peter A. Lugg, Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd
  • Mining machine with multiple cutter heads
    Patent number: 10415384
    Abstract: A mining machine includes a frame, a boom supported for pivoting movement relative to the frame, and a cutter head pivotably coupled to the boom. The cutter head includes a housing, a cutter shaft coupled to the housing, a cutting disc, and an excitation mechanism. A second portion of the cutter shaft extends parallel to a cutter axis. The cutting disc is coupled to the second portion of the cutter shaft and is supported for free rotation relative to the cutter shaft about the cutter axis. The cutting disc includes a plurality of cutting bits defining a cutting edge. The excitation mechanism includes an exciter shaft and a mass eccentrically coupled to the cutter shaft. The excitation mechanism is coupled to the first portion of the cutter shaft. Rotation of the exciter shaft induces oscillating movement of the second portion of the cutter shaft and the cutting disc.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 17, 2019
    Assignee: Joy Global Underground Mining LLC
    Inventors: Peter A. Lugg, Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd
  • MINING MACHINE WITH MULTIPLE CUTTER HEADS
    Publication number: 20170211383
    Abstract: A mining machine includes a frame, a boom supported for pivoting movement relative to the frame, and a cutter head pivotably coupled to the boom. The cutter head includes a housing, a cutter shaft coupled to the housing, a cutting disc, and an excitation mechanism. A second portion of the cutter shaft extends parallel to a cutter axis. The cutting disc is coupled to the second portion of the cutter shaft and is supported for free rotation relative to the cutter shaft about the cutter axis. The cutting disc includes a plurality of cutting bits defining a cutting edge. The excitation mechanism includes an exciter shaft and a mass eccentrically coupled to the cutter shaft. The excitation mechanism is coupled to the first portion of the cutter shaft. Rotation of the exciter shaft induces oscillating movement of the second portion of the cutter shaft and the cutting disc.
    Type: Application
    Filed: January 27, 2017
    Publication date: July 27, 2017
    Inventors: Peter A. Lugg, Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd