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US 10,294,788 B2Granted
Slotted tubular anchor
AssigneeFCI Holdings Delaware, Inc.
InventorsJohn C. Stankus, Dakota Faulkner, David Rager
Life of this patent
Estimating the term…
Abstract
A mine bolt includes an elongated body having a first end and a second end positioned opposite the first end, and an anchor comprising a tube defining a central opening and a slot extending at least a portion of the length of the tube. The anchor is secured to the elongated body. The anchor is configured to compress upon installation of the mine bolt to anchor the elongated body within a bore hole.
Claims10
A mine bolt comprising:
- an elongated body having a first end and a second end positioned opposite the first end;
- and
- an anchor comprising a tube defining a central opening and a slot extending at least a portion of a length of the tube, the anchor is secured to the elongated body, wherein:
- the anchor is configured to compress upon installation of the mine bolt to anchor the elongated body within a bore hole;
- the anchor comprises a nut with an outer diameter, the nut is welded to the tube and positioned within the central opening, the elongated body having a threaded portion configured to be received by the nut;
- and
- the outer diameter of the nut being smaller than a diameter of the central opening of the anchor.
4 more elements
A mine bolt comprising:
- an elongated body having a first end and a second end positioned opposite the first end;
- and
- an anchor comprising a tube defining a central opening and a slot extending at least a portion of a length of the tube, the anchor is secured to the elongated body, wherein:
- the anchor is configured to compress upon installation of the mine bolt to anchor the elongated body within a bore hole;
- the anchor comprises a nut with an outer diameter, the nut is secured to the tube and positioned within the central opening, the elongated body having a threaded portion configured to be received by the nut;
- the outer diameter of the nut being smaller than a diameter of the central opening of the anchor;
- the anchor includes a tapered first end and a second end positioned opposite the tapered first end;
- and
- the second end of the anchor defines a plurality of slits configured to engage a bore hole wall when the mine bolt is installed and placed under loading.
6 more elements
A mine bolt comprising:
- an elongated body having a first end and a second end positioned opposite the first end;
- and
- an anchor comprising a tube defining a central opening and a slot extending at least a portion of a length of the tube, the anchor is secured to the elongated body, wherein:
- the anchor is configured to compress upon installation of the mine bolt to anchor the elongated body within a bore hole;
- the anchor comprises a nut with an outer diameter, the nut is secured to the tube and positioned within the central opening, the elongated body having a threaded portion configured to be received by the nut;
- the outer diameter of the nut being smaller than a diameter of the central opening of the anchor;
- and
- 40-50% of an outer circumference of the nut is welded to the tube.
5 more elements
Dependencies are inferred from the claim text.