US3863958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal hose coupling
Assignee: Individual
•
Filing: 1973-05-02
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Granted: 1975-02-04
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Expires: 1993-05-02
Abstract
Abstract A universal hose coupling which is adapted to be sealably connected to dissimilar externally threaded male fittings. The hose coupling includes a nipple having a tubular bore which includes a conical portion intermediate the ends thereof, and an entry end portion at the outer end thereof. The conical portion is adapted to sealably mate with a male ''''flare'''' fitting having a conically tapered forward end conforming to the taper of the conical portion, and the entry end portion is adapted to sealably engage the O-ring of a male ''''straight thread O-ring boss'''' fitting.
Inventors
- 👤 William H Todd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:46
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/006; F16L15/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
214 words
A hose coupling adapted to be fixedly connected to one end of a hydraulic hose or the like and characterized By the ability to sealably receive dissimilar externally threaded male fittings for connecting the coupling and associated hose to various external components, said hose coupling comprising a nipple comprising a cylindrical stem portion adapted to be inserted into the end of the hose, an integral head portion, and a tubular bore extending coaxially through said stem portion and said head portion, said tubular bore including a first portion extending substantially through said stem portion, a second internally threaded portion of a diameter larger than said first portion and extending substantially through said head portion, a frusto-conical portion interconnecting said first portion and said second portion to define a first outwardly facing sealing surface, and an entry end portion communicating with said second portion and defining a second outwardly facing sealing surface, and means for securing an end of the hose coaxially about said stem portion, whereby either an externally threaded male fitting having a conically tapered forward end conforming to the taper of said first sealing surface, or an externally threaded male fitting having an external O-ring which is adapted to sealably engage said second sealing surface, may be sealably received in said coupling.
Claim 2
Dependent Claim
214 words
A hose coupling adapted to be fixedly connected to one end of a hydraulic hose or the like and characterized By the ability to sealably receive dissimilar externally threaded male fittings for connecting the coupling and associated hose to various external components, said hose coupling comprising a nipple comprising a cylindrical stem portion adapted to be inserted into the end of the hose, an integral head portion, and a tubular bore extending coaxially through said stem portion and said head portion, said tubular bore including a first portion extending substantially through said stem portion, a second internally threaded portion of a diameter larger than said first portion and extending substantially through said head portion, a frusto-conical portion interconnecting said first portion and said second portion to define a first outwardly facing sealing surface, and an entry end portion communicating with said second portion and defining a second outwardly facing sealing surface, and means for securing an end of the hose coaxially about said stem portion, whereby either an externally threaded male fitting having a conically tapered forward end conforming to the taper of said first sealing surface, or an externally threaded male fitting having an external O-ring which is adapted to sealably engage said second sealing surface, may be sealably received in said coupling.
Claim 3
Dependent Claim
60 words
The hose coupling as defined in claim 1 wherein said securing means comprises a tubular ferrule positioned coaxially about said cylindrical stem portion and defining an annular orifice between said stem portion and ferrule for receiving the end of the hose, means for connecting said ferrule to said stem portion, and means for locking the hose in said annular orifice.
Claim 4
Dependent Claim
83 words
The hose coupling as defined in claim 2 wherein said tubular ferrule includes an internal passageway comprising a first cylindrical portion, and a second cylindrical portion coaxial with and having a diameter greater than said first cylindrical portion, and said means for connecting said ferrule to said stem portion comprises a male thread positioned on said stem portion adjacent said head portion, and a female thread positioned on said first cylindrical portion of said ferrule and adapted to operatively engage said male thread.
Claim 5
Dependent Claim
57 words
The hose coupling as defined in claim 3 wherein said means for locking the hose in said annular orifice comprises a second female thread positioned on said second cylindrical portion of said internal passageway of said tubular ferrule, said second female thread being adapted to threadedly engage the end of the hose positioned in said annular orifice.
Claim 6
Dependent Claim
33 words
The hose coupling as defined in claim 4 wherein said ferrule further includes a peripheral surface defining a hexagon in cross section and which is adapted to be engaged by a conventional wrench.
Claim 7
Dependent Claim
27 words
The hose coupling as defined in claim 1 wherein said frusto-conical portion of said tubular bore is inclined at an angle of between about 37* and 45*.
Claim 8
Dependent Claim
46 words
The hose coupling as defined in claim 6 wherein said frusto-conical portion of said tubular bore has an axial depth equal to at least about one half the diameter of said first portion of said tubular bore such that the first sealing surface is relatively broad.
Claim 9
Dependent Claim
17 words
The hose coupling as defined in claim 7 wherein said second outwardly facing sealing surface is frusto-conical.
Claim 10
Dependent Claim
38 words
The hose coupling as defined in claim 8 wherein said second outwardly facing sealing surface has an axial depth and maximum diameter sufficient to permit an external O-ring on a mating male fitting to be substantially received therewithin.
Claim 11
Dependent Claim
36 words
The hose coupling as defined in claim 1 wherein said head portion of said nipple includes a peripheral surface defining a hexagon in cross section and which is adapted to be engaged by a conventional wrench.
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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |