Patent US3630228A successfully refreshed from Google Patents.
US3630228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water regulator and check valve for a jet engine
Assignee: RTX Corp
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Filing: 1969-12-31
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Granted: 1971-12-28
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Expires: 1989-12-31
Abstract
Abstract A water regulator and check valve for a jet engine water injection system which is of a simple and uncomplex construction. The water regulator and check valve construction is of an uncomplex construction in that there is substantially one moving part within the regulator.
Inventors
- 👤 Albert H Turner
- 👤 Charles R Kleza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:52
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/025; F16K15/026; F02; F02C; F02C7/00; F02C7/12; F02C7/14; F02C7/141; F02C7/143; F02C7/1435; F05; F05D; F05D2220/00; F05D2220/30; F05D2220/32; F05D2220/323; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7754; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7791; Y10T137/7793; Y10T137/7801; Y10T137/8593; Y10T137/87917; Y10T137/88038
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
167 words
A fluid regulator which provides a substantially constant flow rate independent of the pressures upstream and downstream of the regulator comprising; a housing having an inlet and outlet means; a throttle valve in the housing positioned downstream of the inlet means and in communication therewith; said throttle valve comprising one member fixed to said housing and a second member movable in relation thereto to provide a valving action; said housing having a piston member located downstream of said throttle valve; said piston member being mounted for axial slidable movement therein; means connecting the upstream end of said piston to the second movable member of said throttle valve; opening means in said piston for permitting a flow of fluid which has passed said throttle valve to pass to the other side of said piston and flow to said outlet means; a metering orifice in series with said opening means; and spring means for biasing said piston, metering orifice, opening means and second movable member in an upstream direction.
Claim 2
Dependent Claim
167 words
A fluid regulator which provides a substantially constant flow rate independent of the pressures upstream and downstream of the regulator comprising; a housing having an inlet and outlet means; a throttle valve in the housing positioned downstream of the inlet means and in communication therewith; said throttle valve comprising one member fixed to said housing and a second member movable in relation thereto to provide a valving action; said housing having a piston member located downstream of said throttle valve; said piston member being mounted for axial slidable movement therein; means connecting the upstream end of said piston to the second movable member of said throttle valve; opening means in said piston for permitting a flow of fluid which has passed said throttle valve to pass to the other side of said piston and flow to said outlet means; a metering orifice in series with said opening means; and spring means for biasing said piston, metering orifice, opening means and second movable member in an upstream direction.
Claim 3
Dependent Claim
44 words
A fluid regulator as set forth in claim 1 wherein: the one member fixed to said housing is an annular flange projecting inwardly from the housing; and the second member movable in relation thereto is connected to the forward end of said connecting means.
Claim 4
Dependent Claim
27 words
A fluid regulator as set forth in claim 2 wherein: the second member is an outwardly extending flange mounted on the forward end of said connecting means.
Claim 5
Dependent Claim
18 words
A fluid regulator as set forth in claim 1 wherein: said opening means extends through said connecting means.
Claim 6
Dependent Claim
36 words
A fluid regulator as set forth in claim 1 wherein: said metering orifice is formed in a separate washerlike member; said washerlike member being located between said spring means and the forward end of the piston.
Claim 7
Dependent Claim
86 words
A fluid regulator as set forth in claim 1 wherein: a short cylindrical section is connected to and projects upstream of the outwardly extending flange connected to the forward end of said connecting means; a cylindrical member being fixed in said housing upstream of said throttle valve, the upstream end of said cylindrical member being closed; said short cylindrical section being slidably mounted in said cylindrical member; and openings connecting the downstream side of said outwardly extending flange to the interior of said short cylindrical section.
Claim 8
Dependent Claim
44 words
A fluid regulator as set forth in claim 2 wherein: said connecting means has a surface thereon for contacting the upstream side of said annular flange projecting inwardly from the housing providing a check valve when no pressure drop exists across the metering orifice.
References Cited (Backward Citations)
US2865397A
Cited
US2890718A
Cited
US3103950A
Cited
US3168902A
Cited
US3333599A
Cited
US3344806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |