Patent US3749356A successfully refreshed from Google Patents.
US3749356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adaptor coupling for fluid flow conduits
Assignee: Coleman Outdoor Products Inc
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Filing: 1972-04-24
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Granted: 1973-07-31
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Expires: 1992-04-24
Abstract
Abstract An adaptor coupling for fluid flow conduits includes a central hollow tube having a fluid flow passage therethrough, a first threaded coupler fitting secured to one end of the central tube, and a second threaded coupler fitting rotatably and slidably carried by the central tube. A hand wheel is secured to the second fitting to facilitate connection of the fitting to a fluid flow conduit, and the hand wheel is provided with lugs which extend toward the first fitting. The hand wheel and second fitting are slidable on the central tube between a first position in which the hand wheel can be freely rotated relative to the first fitting and a second position in which the lugs engage mating surfaces on the first fitting to cause the first fitting to rotate with the hand wheel.
Inventors
- 👤 J Conley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:05
CPC Classifications
F; F16; F16L; F16L29/00; F16L19/00; F16L19/02; F16L19/025; F24; F24C; F24C3/00; F24C3/02; F24C3/027; F24C3/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
328 words
An adaptor coupler for connecting a fuel tank having an internally threaded POL valve to a fuel flow conduit having a connector fitting comprising an elongated adaptor body having a pair of ends and a generally cylindrical central portion, the adaptor body being provided with a longitudinally extending fuel flow passage therethrough, one of the ends of the adaptor body being provided with a generally bullet-shaped nose extending radially outwardly from the central portion of the adaptor body and being adapted to be received by the POL valve, a first coupler fitting secured to the other end of the adaptor body and having threads adapted to be threadedly engaged with the connector fitting of the fuel flow conduit, a second externally threaded generally cylindrical male coupler fitting rotatably and slidably received on the central portion of the adaptor body and adapted to be threadedly engaged with the threads of the POL valve, knob means secured to the second coupler fitting and extending radially outwardly for rotating the second coupler fitting about the central portion of the adaptor body, at least a pair of lugs extending axially from the knob means toward the first coupler fitting, the first coupler fitting having at least a pair of lug-engaging surfaces which are engageable with the lugs to permit the first coupler fitting to be rotated by the hand wheel, the spacing between the first coupler fitting and the bullet-shaped nose being such that the second coupler fitting and the knob means are slidable axially between a first position in which the lugs engage the lug-engaging surfaces of the first coupler fitting whereby the first coupler fitting may be rotated by the knob means to threadedly engage the first coupler fitting to the fuel flow conduit and a second position in which the knob means may rotate without the lugs engaging the first fitting whereby the second fitting may be threadedly engaged with the POL valve without rotating the first coupler fitting.
Claim 2
Dependent Claim
328 words
An adaptor coupler for connecting a fuel tank having an internally threaded POL valve to a fuel flow conduit having a connector fitting comprising an elongated adaptor body having a pair of ends and a generally cylindrical central portion, the adaptor body being provided with a longitudinally extending fuel flow passage therethrough, one of the ends of the adaptor body being provided with a generally bullet-shaped nose extending radially outwardly from the central portion of the adaptor body and being adapted to be received by the POL valve, a first coupler fitting secured to the other end of the adaptor body and having threads adapted to be threadedly engaged with the connector fitting of the fuel flow conduit, a second externally threaded generally cylindrical male coupler fitting rotatably and slidably received on the central portion of the adaptor body and adapted to be threadedly engaged with the threads of the POL valve, knob means secured to the second coupler fitting and extending radially outwardly for rotating the second coupler fitting about the central portion of the adaptor body, at least a pair of lugs extending axially from the knob means toward the first coupler fitting, the first coupler fitting having at least a pair of lug-engaging surfaces which are engageable with the lugs to permit the first coupler fitting to be rotated by the hand wheel, the spacing between the first coupler fitting and the bullet-shaped nose being such that the second coupler fitting and the knob means are slidable axially between a first position in which the lugs engage the lug-engaging surfaces of the first coupler fitting whereby the first coupler fitting may be rotated by the knob means to threadedly engage the first coupler fitting to the fuel flow conduit and a second position in which the knob means may rotate without the lugs engaging the first fitting whereby the second fitting may be threadedly engaged with the POL valve without rotating the first coupler fitting.
Claim 3
Dependent Claim
25 words
The structure of claim 1 in which the bullet-shaped nose is provided with an annular recess and a compressible O-ring is received by the recess.
Claim 4
Dependent Claim
39 words
The structure of claim 1 including valve means positioned within the fluid passage of the adaptor body for closing the fluid passage therethrough when the first fitting is not engaged with the connector fitting of the fuel flow conduit.
Claim 5
Dependent Claim
67 words
The structurE of claim 3 in which the first coupler fitting is provided with a central passage axially aligned with the passage through the adaptor body, the valve means being adapted to be opened by a probe carried by the fuel flow conduit and having a central passage therein, and an O-ring positioned within the central passage of the first coupler fitting for sealingly engaging the probe.
Claim 6
Dependent Claim
14 words
The structure of claim 1 in which the knob means comprises a hand wheel.
Claim 7
Dependent Claim
253 words
An adaptor coupler for connecting a pair of internally threaded female fittings comprising an elongated adaptor body having a pair of ends and a fluid flow passage therethrough, one of the ends of the adaptor body being adapted to sealingly engage one of the female fittings, externally threaded male coupling means on the other end of the adaptor body and being adapted to threadedly engage the other female fitting, an externally threaded generally cylindrical male coupler fitting rotatably and slidably mounted on the adaptor body and adapted to threadedly engage said one female fitting, knob means on the male coupler fitting for rotating the coupler fitting about the adaptor body, abutment means on the male coupler fitting and abutment means on the adaptor body, the spacing between the abutment means on the adaptor body and said one end of the adaptor body being such that the male coupler fitting is slidable axially between a first position in which the abutment means on the male coupler fitting engage the abutment means on the adaptor body whereby the adaptor body may be rotated by rotating the male coupler fitting to threadedly engage the male coupling means on the adaptor body with said other female fitting and a second position in which the male coupler fitting may rotate without the abutment means thereon engaging the abutment means on the adaptor body whereby the male coupler fitting may be threadedly engaged with said one female fitting without rotating the adaptor body and the male coupling means thereon.
Claim 8
Dependent Claim
253 words
An adaptor coupler for connecting a pair of internally threaded female fittings comprising an elongated adaptor body having a pair of ends and a fluid flow passage therethrough, one of the ends of the adaptor body being adapted to sealingly engage one of the female fittings, externally threaded male coupling means on the other end of the adaptor body and being adapted to threadedly engage the other female fitting, an externally threaded generally cylindrical male coupler fitting rotatably and slidably mounted on the adaptor body and adapted to threadedly engage said one female fitting, knob means on the male coupler fitting for rotating the coupler fitting about the adaptor body, abutment means on the male coupler fitting and abutment means on the adaptor body, the spacing between the abutment means on the adaptor body and said one end of the adaptor body being such that the male coupler fitting is slidable axially between a first position in which the abutment means on the male coupler fitting engage the abutment means on the adaptor body whereby the adaptor body may be rotated by rotating the male coupler fitting to threadedly engage the male coupling means on the adaptor body with said other female fitting and a second position in which the male coupler fitting may rotate without the abutment means thereon engaging the abutment means on the adaptor body whereby the male coupler fitting may be threadedly engaged with said one female fitting without rotating the adaptor body and the male coupling means thereon.
Claim 9
Dependent Claim
31 words
The structure of claim 6 in which the male coupling means on the adaptor body comprises an externally threaded male coupler fitting secured to the other end of the adaptor body.
Claim 10
Dependent Claim
59 words
The structure of claim 6 in which the male coupling means on the adaptor body comprises an externally threaded male coupler fitting secured to the other end of the adaptor body and the abutment means on the adaptor body comprises a plurality of flat surfaces on the male coupler fitting secured to the other end of the adaptor body.
Claim 11
Dependent Claim
20 words
The structure of claim 6 in which the knob means comprises a hand wheel secured to the male coupler fitting.
Claim 12
Dependent Claim
144 words
The structure of claim 6 in which the male coupling means on the adaptor body comprises an externally threaded male coupler fitting secured to the other end of the adaptor body, the knob means comprising a hand wheel secured to the male coupler fitting which is rotatably and slidably mounted on the adaptor body, the abutment means on the adaptor body comprising a plurality of flat surfaces on the male coupler fitting which is secured to the other end of the adaptor body, the abutment means on the male coupler fitting which is rotatably mounted on the adaptor body comprising lug means on the hand wheel extending axially toward said other end of the adaptor body, the lug means being spaced slightly radially outwardly from the flat surfaces on the male coupler fitting which is secured to said other end of the adaptor body.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |