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US4509877A
Expired / Lapsed
US
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Tapered torque strain relief coupling
Assignee: Individual
•
Filing: 1983-11-09
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Granted: 1985-04-09
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Expires: 2003-11-09
Abstract
Abstract A strain relief for the point of attachment of a flexible member to a rigid member, comprising a plurality of woven braided strands. The weaving is close or narrow at the point of attachment and progressively more open or wide along the flexible member as the distance from the point of attachment increases, distributing stress along the length of the flexible member.
Inventors
- 👤 Sidney S. Sobin
- 👤 Daniel J. Netto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:12
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/26; F16C1/262; A; A61; A61M; A61M25/00; A61M25/01; A61M25/02; D; D04; D04C; D04C1/00; D04C1/06; A61M2025/024; A61M2025/0266; A61M2025/028; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3998
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
77 words
Reinforcing means adapted for reinforcing a flexible member extending from a rigid member, said reinforcing means comprising a plurality of strands braided in the shape of a hollow tube adapted to be disposed around the flexible member, said strands being closedly braided adjacent to the rigid member and progressively more openly braided around the flexible member as the distance along the flexible member from the point of attachment between the flexible member and the rigid member increases.
Claim 2
Dependent Claim
77 words
Reinforcing means adapted for reinforcing a flexible member extending from a rigid member, said reinforcing means comprising a plurality of strands braided in the shape of a hollow tube adapted to be disposed around the flexible member, said strands being closedly braided adjacent to the rigid member and progressively more openly braided around the flexible member as the distance along the flexible member from the point of attachment between the flexible member and the rigid member increases.
Claim 3
Dependent Claim
21 words
Reinforcing means according to claim 1 in which the open end of the braided strands is secured by a clamping means.
Claim 4
Dependent Claim
42 words
Reinforcing means according to claim 1 in which the spacing between adjacent strands at a given point is proportional to the square root of the distance between that point and the point of attachment of the flexible member to the rigid member.
Claim 5
Dependent Claim
39 words
Reinforcing means according to claim 1 in which the spacing between adjacent strands at a given point is directly proportional to the distance between that point and the point of attachment of the flexible member to the rigid member.
Claim 6
Dependent Claim
17 words
Reinforcing means according to claim 1 in which the strands are embedded within a flexible sheathing means.
Claim 7
Dependent Claim
166 words
Reinforcing means adapted for reinforcing an elongated flexible member extending from a rigid member, said reinforcing means comprising: a plurality of strands of flexible material braided to define an elongated hollow tube having a proximal extremity and a distal extremity and adapted to be disposed about the flexible member for location of said proximal extremity at a first point on said flexible member located adjacent said rigid member, and location of said distal extremity at a second point on said flexible member located remote from said rigid member, said strands being closely spaced adjacent said proximal extremity and progressively more greatly spaced apart as said strands proceed from said proximal extremity to said distal extremity whereby upon disposition of said reinforcing means upon said flexible member, said flexible member is resistant to flexure at said first point and progressively more subject to flexure toward said second point; and means for constraining said proximal extremity of said braided material against longitudinal movement relative to said flexible member.
Claim 8
Dependent Claim
166 words
Reinforcing means adapted for reinforcing an elongated flexible member extending from a rigid member, said reinforcing means comprising: a plurality of strands of flexible material braided to define an elongated hollow tube having a proximal extremity and a distal extremity and adapted to be disposed about the flexible member for location of said proximal extremity at a first point on said flexible member located adjacent said rigid member, and location of said distal extremity at a second point on said flexible member located remote from said rigid member, said strands being closely spaced adjacent said proximal extremity and progressively more greatly spaced apart as said strands proceed from said proximal extremity to said distal extremity whereby upon disposition of said reinforcing means upon said flexible member, said flexible member is resistant to flexure at said first point and progressively more subject to flexure toward said second point; and means for constraining said proximal extremity of said braided material against longitudinal movement relative to said flexible member.
Claim 9
Dependent Claim
21 words
Reinforcing means according to claim 6 in which said distal extremity of the braided strands is secured by a clamping means.
Claim 10
Dependent Claim
33 words
Reinforcing means according to claim 6 in which the spacing between adjacent strands at a given point is proportional to the square root of the distance between that point and said proximal extremity.
Claim 11
Dependent Claim
30 words
Reinforcing means according to claim 6 in which the spacing between adjacent strands at a given point is directly proportional to the distance between that point and said proximal extremity.
Claim 12
Dependent Claim
17 words
Reinforcing means according to claim 6 in which the strands are embedded within a flexible sheathing means.
Claim 13
Dependent Claim
177 words
In combination, a rigid member, an elongated flexible member connected to and extending from said rigid member, and reinforcing means adapted for reinforcing said flexible member, said reinforcing means comprising: a plurality of strands of flexible material braided to define an elongated hollow tube having a proximal extremity and a distal extremity and adapted to be disposed about said flexible member for location of said proximal extremity at a first point on said flexible member located adjacent said rigid member, and location of said distal extremity at a second point on said flexible member located remote from said rigid member, said strands being closely spaced adjacent said proximal extremity and progressively more greatly spaced apart as said strands proceed from said proximal to said distal extremity whereby upon disposition of said reinforcing means upon said flexible member, said flexible member is resistant to flexure at said first point and progressively more subject to flexure toward said second point; and means for constraining said proximal extremity of said braided material against longitudinal movement relative to said flexible member.
Claim 14
Dependent Claim
177 words
In combination, a rigid member, an elongated flexible member connected to and extending from said rigid member, and reinforcing means adapted for reinforcing said flexible member, said reinforcing means comprising: a plurality of strands of flexible material braided to define an elongated hollow tube having a proximal extremity and a distal extremity and adapted to be disposed about said flexible member for location of said proximal extremity at a first point on said flexible member located adjacent said rigid member, and location of said distal extremity at a second point on said flexible member located remote from said rigid member, said strands being closely spaced adjacent said proximal extremity and progressively more greatly spaced apart as said strands proceed from said proximal to said distal extremity whereby upon disposition of said reinforcing means upon said flexible member, said flexible member is resistant to flexure at said first point and progressively more subject to flexure toward said second point; and means for constraining said proximal extremity of said braided material against longitudinal movement relative to said flexible member.
Claim 15
Dependent Claim
21 words
Reinforcing means according to claim 11 in which said distal extremity of the braided strands is secured by a clamping means.
Claim 16
Dependent Claim
33 words
Reinforcing means according to claim 11 in which the spacing between adjacent strands at a given point is proportional to the square root of the distance between that point and said proximal extremity.
Claim 17
Dependent Claim
30 words
Reinforcing means according to claim 11 in which the spacing between adjacent strands at a given point is directly proportional to the distance between that point and said proximal extremity.
Claim 18
Dependent Claim
17 words
Reinforcing means according to claim 11 in which the strands are embedded within a flexible sheathing means.
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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) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |