Patent ID: 7802943
Filing Date: 2010-09-28
Classification: E21D

Abstract:
1. A low-profile mine roof support device, comprising: a plate comprising a bore, a first surface portion immediately surrounding the bore, a second surface portion immediately surrounding the bore, and a seating surface disposed between the second surface portion and the bore, the first surface portion entirely disposed within a first plane, the second surface portion entirely disposed within a second plane that is parallel to the first plane, the first surface portion adapted to be abutted against a mine roof; a barrel comprising a first end and a second end; a tapered bore extending from the first end of the barrel toward the second end of the barrel for receiving a cable; at least one wedge adapted to be received within the tapered bore of the barrel to anchor the cable to the barrel; a cylindrical body disposed at the second end of the barrel; and a head disposed at the first end of the barrel, the head comprising a shoulder portion that is spaced from the first end of the barrel, the shoulder portion having a convex external surface in contact with the seating surface of the plate such that a portion of the head extends from the second surface portion of the plate, completely through the bore, and beyond the first surface portion of the plate.