US3866957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug assembly
Assignee: Hansen Manufacturing Co Inc
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Filing: 1973-08-17
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Granted: 1975-02-18
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Expires: 1993-08-17
Abstract
Abstract An improved plug assembly includes a hard metal ring which is engaged by locking balls of a socket assembly. The hard metal ring has a circular cross sectional configuration and is disposed in an annular groove in the relatively soft metal of the plug body. When the plug body is inserted into the socket assembly, the locking balls engage the hard metal ring rather than the plug body. Due to the hardness of the ring, the plug assembly has a relatively long service life.
Inventors
- 👤 James F Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:31
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/23
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
129 words
In a coupling for interconnecting fluid conduits and including a plug having a body and a socket assembly for receiving at least a portion of said plug body and having locking elements for engaging said plug to hold it against axial movement relative to said socket assembly, the improvement comprising ring means disposed on said plug body for abutting engagement with said locking elements, said ring means including an annular metal ring disposed in abutting engagement with said plug body and formed of a metal which is harder than the material forming said plug body, said ring having a circular cross sectional configuration in a radially extending plane and an outer surface which is engaged by said locking elements when said plug body is received in said socket assembly.
Claim 2
Dependent Claim
129 words
In a coupling for interconnecting fluid conduits and including a plug having a body and a socket assembly for receiving at least a portion of said plug body and having locking elements for engaging said plug to hold it against axial movement relative to said socket assembly, the improvement comprising ring means disposed on said plug body for abutting engagement with said locking elements, said ring means including an annular metal ring disposed in abutting engagement with said plug body and formed of a metal which is harder than the material forming said plug body, said ring having a circular cross sectional configuration in a radially extending plane and an outer surface which is engaged by said locking elements when said plug body is received in said socket assembly.
Claim 3
Dependent Claim
149 words
A plug assembly adapted to be associated with a socket having a plurality of locking elements for engaging said plug assembly to hold it against axial movement, said plug assembly comprising a plug body at least a portion of which is adapted to be received in said socket, said plug body being formed of a first material and having an internal surface defining a fluid passage, said plug body including external surface means for defining a generally circular groove circumscribing said plug body, and ring means for engaging the locking elements when said plug body is received in said socket, said ring means including an annular ring disposed in said circular groove in abutting engagement with said external surface means, said annular ring being formed of a second material which is substantially harder than said first material and having a circular cross sectional configuration in a radially extending plane.
Claim 4
Dependent Claim
149 words
A plug assembly adapted to be associated with a socket having a plurality of locking elements for engaging said plug assembly to hold it against axial movement, said plug assembly comprising a plug body at least a portion of which is adapted to be received in said socket, said plug body being formed of a first material and having an internal surface defining a fluid passage, said plug body including external surface means for defining a generally circular groove circumscribing said plug body, and ring means for engaging the locking elements when said plug body is received in said socket, said ring means including an annular ring disposed in said circular groove in abutting engagement with said external surface means, said annular ring being formed of a second material which is substantially harder than said first material and having a circular cross sectional configuration in a radially extending plane.
Claim 5
Dependent Claim
29 words
A plug assembly as set forth in claim 2 wherein said second material is stainless steel and said first material is a metal which is softer than stainless steel.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |