US3891291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing coupling incorporating bridging conductor
Assignee: E B Wiggins Inc
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Filing: 1974-02-05
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Granted: 1975-06-24
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Expires: 1994-02-05
Abstract
Abstract A coupling for two tubing ends which tubing ends are equipped with radial end flanges either in the form of radial beads in the tubing or in the form of radial flanges of ferrules that are swaged to the tubing ends. The coupling per se is of conventional construction wherein an annular retainer structure straddles the radial end flanges of the confronting tubing ends for the purpose of mechanically interconnecting the confronting tubing ends. The invention adds an elongated leaf spring conductor of undulating configuration which is enclosed by the annular retainer structure and serves as an electrical bridge between the two radial end flanges of the two tubing ends.
Inventors
- 👤 Clarence A Nadsady
- 👤 Clifford D Cannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:05
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/64; F; F16; F16L; F16L19/00; F16L19/02; F16L19/0206; F16L19/0212; F16L19/0218; F16L25/00; F16L25/01; F16L27/00; F16L27/12; F16L27/127; F16L27/1274; H01R4/60
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
90 words
In a coupling joining two tubing ends, each of which is equipped with a radial end flange, wherein the coupling includes Annular retainer structure straddling the radial end flanges with said flanges being in confronting spaced relation mechanically interconnecting the two tubing ends, an improvement electrically interconnecting the two tubing ends, comprising: electrically conductive means inside the annular retainer structure and of a width extending between and contacting said spaced apart radial end flanges of the two tubing ends and serving as a conductor bridge between the two tubing ends.
Claim 2
Dependent Claim
90 words
In a coupling joining two tubing ends, each of which is equipped with a radial end flange, wherein the coupling includes Annular retainer structure straddling the radial end flanges with said flanges being in confronting spaced relation mechanically interconnecting the two tubing ends, an improvement electrically interconnecting the two tubing ends, comprising: electrically conductive means inside the annular retainer structure and of a width extending between and contacting said spaced apart radial end flanges of the two tubing ends and serving as a conductor bridge between the two tubing ends.
Claim 3
Dependent Claim
28 words
An improvement as set forth in claim 1 in which the radial end flanges of the two tubing ends are flanges of ferrules swaged onto the tubing ends.
Claim 4
Dependent Claim
21 words
An improvement as set forth in claim 1 in which the electrically conductive means is attached to the annular retainer structure.
Claim 5
Dependent Claim
54 words
An improvement as set forth in claim 1 in which said electrically conductive means is leaf spring means of undulating configuration in longitudinal cross section with at least one outward undulation in contact with the annular retainer structure and with at least one inward undulation in contact with said two radial end flanges, respectively.
Claim 6
Dependent Claim
60 words
An improvement as set forth in claim 4 in which said annular retainer structure includes an annular retainer having a web and two inwardly extending side flanges straddling said radial end flanges; and in which said leaf spring means is a leaf spring formed with ears projecting from its opposite sides with said ears being wedged into the annular space.
Claim 7
Dependent Claim
74 words
An improvement as set forth in claim 4 in which said annular retainer structure includes an annular retainer having a web and two inwardly extending side flanges straddling said radial end flanges; in which the annular retainer is made in two sections positioned end-to-end; and in which said leaf spring is attached to at least one of the two sections to remain therewith when the section is separate from the rest of the coupling.
Claim 8
Dependent Claim
26 words
An improvement as set forth in claim 6 in which said leaf spring is wedged between the opposite inner side flanges of the annular retainer section.
Claim 9
Dependent Claim
20 words
An improvement as set forth in claim 6 in which the leaf spring is bonded to the annular retainer section.
Claim 10
Dependent Claim
21 words
An improvement as set forth in claim 8 in which the leaf spring is metallically bonded to the annular retainer section.
Claim 11
Dependent Claim
21 words
An improvement as set forth in claim 8 in which the leaf spring is adhesively bonded to the annular retainer section.
Claim 12
Dependent Claim
24 words
An improvement as set forth in claim 6 in which the leaf spring is metallically bonded to an insert in the annular retainer section.
Claim 13
Dependent Claim
30 words
An improvement as set forth in claim 6 in which a portion of the leaf spring extends through an aperture in the annular retainer section anchoring the leaf spring thereto.
Claim 14
Dependent Claim
37 words
An improvement as set forth in claim 6 in which the leaf spring is lanced forming a tongue, the tongue extending through an aperture in the annular retainer section and bent over anchoring the leaf spring thereto.
Claim 15
Dependent Claim
46 words
An improvement as set forth in claim 6 in which the leaf spring is lanced forming two tongues extending through an aperture in one of said annular retainer sections with the tongues bent over in opposite directions anchoring the leaf spring to the annular retainer section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |