Back to results
US 12,741,853 B2Granted
Modular pulley block
AssigneeROPE Savers LLC
InventorsMatthew Lippmann, David O'Neill, Daniel Garcia Munoz
Life of this patent
Estimating the term…
Abstract
A modular block incorporates an endless rope loop that forms a first loop extension and second loop extension configured to be retained by a hook or other support. The endless rope loop extends through the sheave axle and may be made of ultrahigh molecular weight polyethylene (UHMWPE). The sheave wheel spins over the sheave axle on bearings and a pair of opposing side plates extend around the sheave wheel to prevent a rope from jumping off of the sheave wheel. The endless rope loop may be an endless braided rope that forms a continuous ring or loop.
Claims19
A block comprising:
- a) a sheave axle having a sheave axle conduit;
- b) a sheave bearing configured around the sheave axle;
- c) a sheave wheel that extends around the sheave axle and sheave bearing and rotates about an axial axis of the sheave axle;
- d) a first side plate on a first side of the sheave axle;
- e) a second side plate on a second side of the sheave axle;
- and
- f) an endless rope loop that extends through the sheave axle conduit and comprises:
- i) a first loop extension comprising a first loop portion and second loop portion that extend from the first side to form a first loop end;
- ii) a second loop extension comprising a first loop portion and second loop portion that extend from the second side to form a second loop end;
- and
- iii) a coupling extension extending between the first loop extension and the second loop extension;
- wherein the coupling extension extends through the sheave axle conduit;
- and
- wherein the block is modular and configured to be disassembled by removal of the endless rope loop, the endless rope loop securing the first side plate, the second side plate, the sheave axle, and the sheave wheel in place, and the block requiring no bolts or fasteners extending from the first side to the second side;
- and wherein the endless rope loop has no tie, weld, adhesive, or joint around its perimeter.
12 more elements
A block comprising:
- a) a sheave axle having a sheave axle conduit;
- b) a sheave bearing configured around the sheave axle;
- c) a sheave wheel that extends around the sheave axle and sheave bearing and rotates about an axial axis of the sheave axle;
- d) a first side plate on a first side of the sheave axle;
- e) a second side plate on a second side of the sheave axle;
- and
- f) an endless rope loop that extends through the sheave axle conduit and comprises:
- i) a first loop extension comprising a first loop portion and second loop portion that extend from the first side to form a first loop end;
- ii) a second loop extension comprising a first loop portion and second loop portion that extend from the second side to form a second loop end;
- and
- iii) a coupling extension extending between the first loop extension and the second loop extension;
- wherein the coupling extension extends through the sheave axle conduit;
- and
- wherein the block is modular and configured to be disassembled by removal of the endless rope loop, the endless rope loop securing the first side plate, the second side plate, the sheave axle, and the sheave wheel in place, and the block requiring no bolts or fasteners extending from the first side to the second side;
- wherein the endless rope loop comprises a braided rope comprising a plurality of strands that are braided together;
- wherein each of the strands comprises a plurality of polymeric fibers;
- wherein the polymeric fibers are ultrahigh molecular weight polyethylene;
- and
- wherein the endless rope loop has no tie, weld, adhesive, or joint around its perimeter.
16 more elements
Dependencies are inferred from the claim text.