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US 4,789,045 AGranted
Swing rope
AssigneeBilly Pugh Co., Inc.
InventorBilly G. Pugh
Life of this patent
Estimating the term…
Abstract
Swing rope constructed of successive layers of polyurethane, fiberglass resin, polypropylene rope, a second fiberglass resin and an abrasive grit. The swing rope may be used to transport crew members of an offshore rig to or from a waiting boat. A second embodiment relates to a non-slip surface applied to a rescue sling.
Claims12
A swing rope comprising:
- a bitter end;
- a second end;
- a first knot located above said bitter end, a last knot located above said first knot and below said second end;
- a polyurethane coat about the entirety of said rope;
- a first fiberglass resin coat about the rope between said knots and about a section of said rope immediately above said last knot;
- a polypropylene rope spirally wound about said first fiberglass resin coat;
- a second fiberglass resin coat about said polypropylene rope and an abrasive grit on said second coat of fiberglass resin coat, said swing rope being adapted for use as an all-weather transporting device when said second end is suspended from a fixed structure.
4 more elements
A method of making a swing rope which comprises:
- forming a plurality of spaced knots in a rope having a bitter end and a second end so that a first knot is located above said bitter end, and a last knot is located above said first knot and below said second end;
- coating said knotted rope with a polyurethane solution;
- drying said rope;
- applying a first fiberglass resin coat about the rope between said knots, and about a section of said rope immediately above said last knot;
- spirally winding a polypropylene rope about said first fiberglass resin coat;
- applying a second fiberglass resin coat about said polypropylene rope;
- and
- applying a fine grit upon said second fiberglass resin coat while said second resin coat is wet and allowing said second resin coat to dry whereby said grit is adhered to said resin so that an all-weather, non-slip rope is formed.
5 more elements
A swing rope having a rope core, an eye splice secured to a first end of the rope core, a thimble in the eye splice, and a bitter end at a second end of the rope, further comprising,
- a first fiberglass resin coat about the rope core between said two ends;
- a spirally wound polypropylene rope about said first fiberglass resin coat;
- a second fiberglass resin coat about said spirally wound rope;
- and
- an abrasive grit applied about said second fiberglass resin coat.
2 more elements
Dependencies are inferred from the claim text.