Back to results
US 12,103,124 B2Granted
Mining shield base lift wear pad
OwnerChristopher Scott Larewinventor
Life of this patent
Estimating the term…
Abstract
A wear pad for a longwall mining shield base lift. The wear pad includes at least one spanner hole for rotating the wear pad with a lever, at least one threaded retaining hole, and a retaining bolt threaded through the retaining hole until it contacts a cylinder rod to which the wear pad is to be attached.
Claims16
A wear pad for a mining shield base lift, comprising:
- a wear member having an axial wall extending from the wear member;
- a thread formed on the axial wall, the wear member thread to mate with a mining shield base lift cylinder rod thread;
- a threaded retaining bolt hole extending through the axial wall of the wear member to receive a retaining bolt;
- and
- a spanner hole extending through the axial wall of the wear pad.
2 more elements
A wear pad for a mining shield base lift, comprising:
- a wear member having an axial wall extending from a perimeter of the wear member;
- a thread formed on the inside of the axial wall, the wear member thread to mate with a mining shield base lift cylinder rod thread;
- a plurality of threaded retaining bolt holes extending through the axial wall of the wear member to receive a plurality of retaining bolts;
- and
- a plurality of spanner holes extending into an exterior surface of the axial wall of the wear pad;
- wherein the wear pad is formed of a grade of steel that is softer than the grade of steel of the cylinder rod to which the wear pad is to be attached.
3 more elements
A wear pad for a mining shield base lift, comprising:
- a wear member having an axial wall extending from the wear member;
- a square toothed thread formed on the axial wall extending from the wear member, the wear member thread to mate with a mining shield base lift cylinder rod thread;
- a threaded retaining bolt hole extending through the axial wall of the wear member to receive a retaining bolt;
- and
- a plurality of spanner holes extending through the axial wall.
2 more elements
Dependencies are inferred from the claim text.