Patents Assigned to Excel Mining Systems LLC
  • Low Profile Cable Bolt Heads
    Publication number: 20120251245
    Abstract: A cable bolt assembly incorporating a head that distributes loads and minimizes the risk of potential failure caused by cable bolt head protrusion through the load bearing plate due to plate deformation. A flush seat cable bolt head includes a tapered nose portion, a flush seating portion that acts to distribute loads and a head portion of any geometrical consideration, either external or internal that is used to drive the head.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 4, 2012
    Applicant: Excel Mining Systems LLC
    Inventor: Anthony John Spencer SPEARING
  • LOW PROFILE CABLE BOLT HEADERS
    Publication number: 20110311319
    Abstract: Improved roof cable bolts with reduced protrusion from a mine roof. Particularly, a roof cable bolt head can preferably be dimensioned such that most of its length fits inside a drilled hole in the mine roof.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 22, 2011
    Applicant: EXCEL MINING SYSTEMS LLC
    Inventor: Anthony John Spencer Spearing
  • Low profile cable bolt headers
    Patent number: 8007206
    Abstract: Improved roof cable bolts with reduced protrusion from a mine roof. Particularly, a roof cable bolt head can preferably be dimensioned such that most of its length fits inside a drilled hole in the mine roof.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: August 30, 2011
    Assignee: Excel Mining Systems LLC
    Inventor: Anthony John Spencer Spearing