US4007953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable captive coupling nut assembly
Assignee: International Telephone and Telegraph Corp
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Filing: 1975-09-10
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Granted: 1977-02-15
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Expires: 1995-09-10
Abstract
Abstract A coupling nut is rotatably mounted on a barrel and retained thereon by the means of a snap ring. The snap ring is formed with forwardly and rearwardly extending tabs at its free ends which cooperate with a slot formed in the outer surface of the barrel and a recess formed in the inner surface of the nut which allows the nut to be assembled onto the barrel and removed therefrom without the use of a tool.
Inventors
- 👤 Lloyd James Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:44
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/621; F; F16; F16L; F16L19/00; F16L19/02; F16L19/0231; F16L2201/00; F16L2201/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
207 words
A removable captive coupling nut assembly comprising: a coupling nut rotatably mounted on a barrel, said nut having a forward end; means for captivating said nut axially on said barrel; said captivating means including an annular groove in the outer surface of said barrel, an annular groove in the inner surface of said nut axially aligned with said barrel groove and a snap ring positioned in both said grooves; said captivating means further including: a recess in the inner surface of said nut intersecting said nut groove and opening at said forward end of said nut; a slot in the outer surface of said barrel extending rearwardly from said barrel groove; said snap ring being circular and having spaced free ends within the outer circumference of said circular snap ring; a rearwardly extending tab on one of said free ends engageable with said slot and a forwardly extending tab on the other free end engageable with said recess whereby the nut is rotated to contract the snap ring for assembly and disassembly of the coupling nut and the barrel, both of said tabs being positioned within said recess in the assembled position; and said captivating means being releasable to allow removal of said nut from said barrel.
Claim 2
Dependent Claim
207 words
A removable captive coupling nut assembly comprising: a coupling nut rotatably mounted on a barrel, said nut having a forward end; means for captivating said nut axially on said barrel; said captivating means including an annular groove in the outer surface of said barrel, an annular groove in the inner surface of said nut axially aligned with said barrel groove and a snap ring positioned in both said grooves; said captivating means further including: a recess in the inner surface of said nut intersecting said nut groove and opening at said forward end of said nut; a slot in the outer surface of said barrel extending rearwardly from said barrel groove; said snap ring being circular and having spaced free ends within the outer circumference of said circular snap ring; a rearwardly extending tab on one of said free ends engageable with said slot and a forwardly extending tab on the other free end engageable with said recess whereby the nut is rotated to contract the snap ring for assembly and disassembly of the coupling nut and the barrel, both of said tabs being positioned within said recess in the assembled position; and said captivating means being releasable to allow removal of said nut from said barrel.
Claim 3
Dependent Claim
40 words
A removable captive coupling nut assembly as set forth in claim 1 wherein: said barrel groove has a forward relatively shallow section and a rear relatively deep section, said snap ring being positioned in said forward section of said groove.
Claim 4
Dependent Claim
38 words
A removable captive coupling nut assembly as set forth in claim 1 wherein: said snap ring has an inner surface and an outer surface; said tabs being flush with said outer surface and spaced from said inner surface.
Claim 5
Dependent Claim
34 words
A removable captive coupling nut assembly as set forth in claim 2 wherein: the radial thickness of said snap ring is no greater than the depth of said rear section of said barrel groove.
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) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |