Swing rope

• US 4,789,045 A
• Filed: 05/12/1987
• Issued: 12/06/1988
• Est. Priority Date: 05/12/1987
• Status: Expired due to Fees

• Current Assignee: Billy Pugh Company, Inc.
• Original Assignee: Billy Pugh Company, Inc.
• Inventors: Pugh, Billy G.
• Primary Examiner(s): CHERRY, JOHNNY DAN
• Application Number:
  US07/048,681
• Time in Patent Office: 574 Days
• Field of Search: 57/207, 57/211, 57/217, 57/221, 57/223, 57/230, 57/232, 57/234, 57/242, 87/1, 87/5-7, 87/13, 114/362, 182/100, 182/190, 182/196-198, 272/85, 294/74, 294/77, 294/140, 428/246, 428/252, 428/260, 428/261, 428/361, 428/364, 428/372, 428/375, 428/377, 428/403, 428/407, 441/80, 441/83, 441/84, 441/136
• US Class Current: 182/190
• CPC Class Codes: A62B 1/20 by making use of sliding-ropes, sliding-poles or chutes, e.g. hoses, pipes, sliding-grooves, sliding-sheets
• CPC Class Codes: D07B 1/02 Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
• CPC Class Codes: D07B 1/145 comprising elements for indicating or detecting the rope or cable status
• CPC Class Codes: D07B 1/148 comprising marks or luminous elements
• CPC Class Codes: D07B 1/162 characterised by a plastic or rubber enveloping sheathing
• CPC Class Codes: D07B 1/18 Grommets slings B66C1/12
• CPC Class Codes: D07B 2201/104 twisted
• CPC Class Codes: D07B 2205/2039 Polyesters
• CPC Class Codes: D07B 2501/2092 Evacuation lines or lifelines
• CPC Class Codes: D07B 2801/10 Smallest filamentary entity of a rope or strand, i.e. wire, filament, fiber or yarn
• CPC Class Codes: D07B 5/005 characterised by their outer shape or surface properties

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.

Claims

1. 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.

2. The swing rope of claim 1, wherein said second end includes an eye splice and thimble.

3. The swing rope of claim 2, wherein said bitter end is secured by sewing said end with nylon thread.

4. The swing rope of claim 1, wherein said bitter end is secured by sewing said end with nylon thread.

5. The swing rope of claim 1, wherein said rope is comprised of strands of polyester and each strand has a colored polypropylene tracer.

6. The swing rope of claim 1, wherein said grit is fine steel slag.

7. The swing rope of claim 1, further comprising one or more knots positioned between said first and last knots.

8. 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.

9. 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.

10. The swing rope according to claim 9, wherein said rope core comprises three strands of polyester.

11. The swing rope according to claim 10, wherein the polyester strands have a tracer core.

12. The swing rope according to claim 9, wherein the spirally wound rope is polypropylene rope and said polypropylene rope has a diameter of about 5/16 of an inch, and said rope core has a diameter of about 3/4 of an inch.