USRE29537E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque balanced rope
Assignee: Amsted Industries Inc
•
Filing: 1976-08-24
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Granted: 1978-02-14
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Expires: 1996-08-24
Abstract
Abstract .Iadd.A torque balanced regular lay wire rope having from three to six strands spiraled together such that the angle of lay of the outer wires in each strand is at least two times greater than the angle of lay of the strands in the rope and said rope is in a stress relieved condition..Iaddend.
Inventors
- 👤 William E. Adams
- 👤 Wilbert A. Lucht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:06
CPC Classifications
D; D07; D07B; D07B1/00; D07B1/06; D07B1/0673; D07B1/068; D07B2201/00; D07B2201/10; D07B2201/104; D07B2201/1064; D07B2401/00; D07B2401/20; D07B2401/2015
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
A torque balanced regular lay .Iadd.wire .Iaddend.rope comprising between three and six strands spiraled together, the angle of lay of the outer wires in each strand being at least . .13/4.!. .Iadd.2 .Iaddend.times that of the angle of lay of the strands in the rope, .Iadd.said rope being in the stress relieved condition, .Iaddend.the torque exerted by the rope being approximately equal to the torque exerted by the strands.
Claim 2
Dependent Claim
69 words
A torque balanced regular lay .Iadd.wire .Iaddend.rope comprising between three and six strands spiraled together, the angle of lay of the outer wires in each strand being at least . .13/4.!. .Iadd.2 .Iaddend.times that of the angle of lay of the strands in the rope, .Iadd.said rope being in the stress relieved condition, .Iaddend.the torque exerted by the rope being approximately equal to the torque exerted by the strands.
Claim 3
Dependent Claim
29 words
A torque balanced regular lay rope according to claim 1 in which the rope will rotate within 3° per ft. of length up to 75% of the breaking strength.
Claim 4
Dependent Claim
26 words
A torque balanced regular lay rope according to claim 1 in which the rope is stress relieved at a temperature of between 600° and 1150° F.
Claim 5
Dependent Claim
29 words
A torque balanced regular lay rope according to claim 3 in which the rope will rotate within 3° per ft. of length up to 75% of the breaking strength.
Claim 6
Dependent Claim
18 words
A torque balanced regular lay rope according to claim 1 in which consists of three strands spiraled together.
Claim 7
Dependent Claim
29 words
A torque balanced regular lay rope according to claim 5 in which the rope will rotate within 3° per ft. of length up to 75% of the breaking strength.
Claim 8
Dependent Claim
26 words
A torque balanced regular lay rope according to claim 6 in which the rope is stress relieved at a temperature of between 600° and 1150° F.
Claim 9
Dependent Claim
45 words
A torque balanced regular lay rope according to claim 1 which consists of six strands spiraled together, the angle of lay of the outer wires in each strand being at least two times that of the angle of lay of the strands in the rope.
Claim 10
Dependent Claim
29 words
A torque balanced regular lay rope according to claim 8 in which the rope will rotate within 3° per ft. of length up to 75% of the breaking strength.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |