FOUR STRAND BLACKENED WIRE ROPE
First Claim
1. A wire rope used for theatrical productions comprising:
- a plurality of strands having a closed spiral arrangement with each other and being compacted, wherein each said strand includes a center wire spirally surrounded by a plurality of inner wires spirally surrounded by a plurality of outer wires, wherein said outer wires completely encompass said inner wires, wherein said center wire and said inner wires are made from a galvanized material and coated with a lubricant, wherein said outer wires are made from non-coated steel, and wherein each said strand is compacted so said outer wires create a tight mechanical seal that protects said inner wires; and
a blackened finish.
7 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed to a wire rope having a blackened finish designed for theatrical productions. The wire rope includes a plurality of strands that have a closed spiral arrangement with each other and are compacted. Each strand includes a center wire spirally surrounded by a plurality of inner wires that are spirally surrounded by a plurality of outer wires so that the outer wires completely encompass the inner wires. The center wire and the inner wires are made from a galvanized material and coated with a lubricant. The outer wires are made from a non-coated steel material. Each strand is compacted so the outer wires create a tight mechanical seal to protect the inner wires. The blackened finish on the wire rope is due to a black oxide coating treatment and provides for low visibility of the wire rope during theatrical performances.
-
Citations
20 Claims
-
1. A wire rope used for theatrical productions comprising:
-
a plurality of strands having a closed spiral arrangement with each other and being compacted, wherein each said strand includes a center wire spirally surrounded by a plurality of inner wires spirally surrounded by a plurality of outer wires, wherein said outer wires completely encompass said inner wires, wherein said center wire and said inner wires are made from a galvanized material and coated with a lubricant, wherein said outer wires are made from non-coated steel, and wherein each said strand is compacted so said outer wires create a tight mechanical seal that protects said inner wires; and a blackened finish. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A wire rope used for theatrical productions comprising:
-
four strands having a closed spiral arrangement with each other and being compacted, wherein each said strand includes a center wire spirally surrounded by eighteen inner wires spirally surrounded by twelve outer wires, wherein said outer wires completely encompass said inner wires, wherein said center wire and said inner wires are made from a galvanized material and coated with a lubricant, wherein said outer wires are made from non-coated steel, and wherein each said strand is compacted so said outer wires create a tight mechanical seal that protects said inner wires from a black oxide coating treatment; and a blackened finish, wherein said finish is due to said wire rope undergoing said coating treatment. - View Dependent Claims (12, 13)
-
-
14. A method of producing a blackened wire rope for theatrical productions comprising the steps of:
-
producing a galvanized center wire; producing a plurality of galvanized inner wires that surround said center wire; applying a lubricant to said center wires and said inner wires; producing a plurality of non-coated steel outer wires that completely surround said inner wires; producing a strand by spirally arranging said inner and outer wires around said center wire; compacting said strand using an in-line compaction method thereby creating a mechanical seal between said outer wires; closing a plurality of said strands to produce said wire rope; compacting said wire rope; and applying a black finish to said wire rope. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification