Patent US4320252A successfully refreshed from Google Patents.
US4320252A
Expired / Lapsed
US
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Telecommunication cable closure
Assignee: AT&T Inc
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Filing: 1980-09-05
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Granted: 1982-03-16
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Expires: 2000-09-05
Abstract
Abstract A pressurizable closure is disclosed for a telecommunication cable. The closure has a metallic air valve extending through a closure to each end of which electrical couplers are secured for use in grounding the cable sheath.
Inventors
- 👤 James R. Holman
- 👤 Robert N. McIntyre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:05
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/64; H01R4/646; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/103; H02G15/105; H02G15/117
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A pressurizable closure for a telecommunication cable comprising, in combination, a hollow body adapted to be placed about and sealed to an end of at least one cable; a metallic valve extending through a wall of said hollow body through which valve a pressurizing fluid may be introduced into said body; first means for electrically coupling a portion of said metallic valve located inside said hollow body with an electrically conductive component of the cable housed within said hollow body; and second means for electrically coupling a portion of said metallic valve located outside said hollow body with an extrinsic electrical grounding element.
Claim 2
Dependent Claim
103 words
A pressurizable closure for a telecommunication cable comprising, in combination, a hollow body adapted to be placed about and sealed to an end of at least one cable; a metallic valve extending through a wall of said hollow body through which valve a pressurizing fluid may be introduced into said body; first means for electrically coupling a portion of said metallic valve located inside said hollow body with an electrically conductive component of the cable housed within said hollow body; and second means for electrically coupling a portion of said metallic valve located outside said hollow body with an extrinsic electrical grounding element.
Claim 3
Dependent Claim
87 words
A pressurizable closure in accordance with claim 1 wherein said valve has a threaded valve stem located inside said hollow body; and wherein said first coupling means comprises a bonding clamp adapted to be clamped to a cable jacket flush against a metallic cable sheath underlaying said jacket from which bonding clamp a threaded stud projects, a braided conductor extending between said threaded valve stem and said bonding clamp stud, and nut means for tightly holding said braided conductor to said valve stem and bonding clamp stud.
Claim 4
Dependent Claim
50 words
A pressurizable closure in accordance with claim 1 or 2 wherein said valve has a threaded valve stem located outside said hollow body, and wherein said second coupling means comprises a terminal lug mounted to said threaded valve stem outside said hollow body from which lug a grounding wire extends.
Claim 5
Dependent Claim
20 words
A pressurizable closure in accordance with claim 1 wherein said hollow body is formed of a electrically insulative plastic material.
Claim 6
Dependent Claim
33 words
A pressurizable cover in accordance with claim 1 wherein said hollow body is adapted to be placed about and hermetically sealed to an end of a cable and thereby provided an end seal.
References Cited (Backward Citations)
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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) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |