US3871404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-tight and separable coupling, liquid-filling devices for reservoirs
Assignee: Zenith Aviation SA
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Filing: 1974-01-15
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Granted: 1975-03-18
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Expires: 1994-01-15
Abstract
Abstract The device comprises an element fixed to a reservoir and an element mounted at the end of a delivery pipe, the two elements being normally rendered fluid-tight by valves cooperating with seats. The bringing together of the elements causes the opening of the valves. A spring-urged pusher is mounted on one element so as to cause separation of the latter when the operator ceases to thrust on handles carrying these elements. The invention is particularly applicable to the filling of fuel tanks of racing cars.
Inventors
- 👤 Jacques Courant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:02
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/28; F16L37/30; F16L37/32; F16L37/34; B; B60; B60S; B60S5/00; B60S5/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
370 words
Fluid-tight and separable coupling, liquid filling device for reservoirs, constituted by two elements suitable for adaptation respectively to an orifice of the reservoir and to the end of an inlet pipe for the liquid, the first element comprising a rigid nozzle provided with a fixed annular seat and with a transverse support surface and a central movable valve member guided axially on this nozzle and capable of being pushed, against the effect of first elastic means, away from said seat and towards the inside of the reservoir, and the second element comprising a rigid tubular body carrying a fixed valve member rigidly fixed, arranged to push the movable valve member of the first element on coupling of the two elements and on which is coaxially guided a movable annular seat, cooperating with the fixed valve member of the second element and urged by second elastic means which tend to thrust against this fixed valve member by outward movement, the movable annular seat being guided on the body with the interposition of sealing means and possessing other sealing means adapted to cooperate with the transverse surface of the rigid nozzle, and arranged to cooperate by abutment with said transverse surface, said device comprising an annular pusher provided in the second element, third elastic means guiding said annular pusher coaxially to the seat and urging it outwardly, said annular pusher being alsO adapted to cooperate by abutment with said transverse surface, so that, when an operator brings the second element axially towards the first by exerting sufficient thrust to overcome the force of the third elastic means, it causes successively, by direct contact of said transverse surface of the rigid nozzle with the annular pusher, the withdrawal of the latter then, by an additional movement, the withdrawal of the movable annular seat (opening of the inlet pipe) accompanied by the driving-in of the movable valve member (opening of the reservoir) by contact with the fixed valve member, the interruption of said thrust causing automatically movements in the reverse direction under the effect of the assembly of above-mentioned elastic means, that is to say the closing of the two seats by their respective valve members and the enforced separation of the two elements.
Claim 2
Dependent Claim
370 words
Fluid-tight and separable coupling, liquid filling device for reservoirs, constituted by two elements suitable for adaptation respectively to an orifice of the reservoir and to the end of an inlet pipe for the liquid, the first element comprising a rigid nozzle provided with a fixed annular seat and with a transverse support surface and a central movable valve member guided axially on this nozzle and capable of being pushed, against the effect of first elastic means, away from said seat and towards the inside of the reservoir, and the second element comprising a rigid tubular body carrying a fixed valve member rigidly fixed, arranged to push the movable valve member of the first element on coupling of the two elements and on which is coaxially guided a movable annular seat, cooperating with the fixed valve member of the second element and urged by second elastic means which tend to thrust against this fixed valve member by outward movement, the movable annular seat being guided on the body with the interposition of sealing means and possessing other sealing means adapted to cooperate with the transverse surface of the rigid nozzle, and arranged to cooperate by abutment with said transverse surface, said device comprising an annular pusher provided in the second element, third elastic means guiding said annular pusher coaxially to the seat and urging it outwardly, said annular pusher being alsO adapted to cooperate by abutment with said transverse surface, so that, when an operator brings the second element axially towards the first by exerting sufficient thrust to overcome the force of the third elastic means, it causes successively, by direct contact of said transverse surface of the rigid nozzle with the annular pusher, the withdrawal of the latter then, by an additional movement, the withdrawal of the movable annular seat (opening of the inlet pipe) accompanied by the driving-in of the movable valve member (opening of the reservoir) by contact with the fixed valve member, the interruption of said thrust causing automatically movements in the reverse direction under the effect of the assembly of above-mentioned elastic means, that is to say the closing of the two seats by their respective valve members and the enforced separation of the two elements.
Claim 3
Dependent Claim
56 words
Device according to claim 1, wherein the body of the second element has two coaxial cylindrical skirts, namely an inner skirt which defines, by its inner wall, an inlet pipe for liquid and whose outer wall serves to guide the seat, and an outer skirt which possesses an inner cylindrical wall serving to guide the pusher.
Claim 4
Dependent Claim
51 words
Device according to claim 2, wherein the elastic means acting respectively on the movable seat and on the pusher are coaxial helicoidal springs which, on one side, are both supported on the body and which on the other side, act respectively on shoulders of the movable seat and of the pusher.
Claim 5
Dependent Claim
38 words
Device according to claim 3, wherein the two shoulders are situated and arranged so that once the movable seat is stopped by the fixed valve member, they come into contact to limit the outward movement of the pusher.
Claim 6
Dependent Claim
48 words
Device according to claim 2, wherein the outer skirt bears internally, at its free end, a ring whose shape and inner dimensions are adapted to those of the nozzle of the first element, so as to facilitate the precentering and sliding of the second element on the first.
Claim 7
Dependent Claim
53 words
Device according to claim 2, wherein the outer skirt bears, at its free end, rollers or other rolling elements arranged in radial planes and intended to roll on the outer surface of the nozzle of the first element so as to facilitate the precentering and sliding of the second element on the first.
Claim 8
Dependent Claim
46 words
Device according to claim 2, wherein the pusher possesses, at its free end, an inner housing whose diameter corresponds to the outer diameter of the nozzle of the first element so as to facilitate the precentering and the sliding of the second element on the first.
Claim 9
Dependent Claim
68 words
Device according to claim 1, wherein the sealing means, which are provided on the movable seat to cooperate with the transverse surface of the nozzle of the first element, are mounted on this seat with, with respect to this seat and hence to the first element, a freedom which enables sealing on coupling of the two elements to be ensured, even though the latter are not strictly coaxial.
References Cited (Backward Citations)
US2457251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |