Patent US3137210A successfully refreshed from Google Patents.
US3137210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure ratio bleed control
Assignee: RTX Corp
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Filing: 1960-07-21
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Granted: 1964-06-16
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Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 John C Gavin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:18
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0207; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617; Y10T137/7722; Y10T137/7758; Y10T137/7762
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A PRESSURE RATIO CONTROL INCLUDING A CASING, PASSAGE MEANS WITHIN SAID CASING FOR THE FLOW OF A GASEOUS FLUID THERETHROUGH, AN ORIFICE IN SAID PASSAGE MEANS, MEANS FOR MANUALLY ESTABLISHING THE AREA OF SAID ORIFICE, A PAIR OF VENTURIS IN SAID PASSAGE MEANS DOWNSTREAM OF SAID ORIFICE AND CONNECTED TO OPERATE IN PARALLEL, MEANS FOR CONTROLLING GASEOUS FLUID FLOW THROUGH ONE OF SAID VENTURIS, CHAMBER MEANS WITHIN SAID CASING HAVING PRESSURE RESPONSIVE MEANS THEREIN, A PASSAGE CONNECTING THE OTHER OF SAID VENTURIS AND SAID CHAMBER MEANS TO ADMIT GASEOUS FLUID TO SAID CHAMBER MEANS TO MOVE SAID PRESSURE RESPONSIVE MEANS IN ONE DIRECTION, A PASSAGE CONNECTING SAID PASSAGE MEANS DOWNSTREAM OF SAID ORIFICE AND SAID CHAMBER MEANS TO ADMIT GASEOUS FLUID TO SAID CHAMBER MEANS TO MOVE SAID PRESSURE RESPONSIVE MEANS IN THE OPPOSITE DIRECTION, MEANS OPERATIVELY CONNECTED WITH SAID PRESSURE RESPONSIVE MEANS TO RECEIVE AN OUTPUT INDICATIVE OF THE DISPLACEMENT OF SAID PRESSURE RESPONSIVE MEANS, AND MEANS FOR ACTUATING SAID GASEOUS FLUID FLOW CONTROLLING MEANS IN RESPONSE TO SAID OUTPUT.
Claim 2
Dependent Claim
171 words
A PRESSURE RATIO CONTROL INCLUDING A CASING, PASSAGE MEANS WITHIN SAID CASING FOR THE FLOW OF A GASEOUS FLUID THERETHROUGH, AN ORIFICE IN SAID PASSAGE MEANS, MEANS FOR MANUALLY ESTABLISHING THE AREA OF SAID ORIFICE, A PAIR OF VENTURIS IN SAID PASSAGE MEANS DOWNSTREAM OF SAID ORIFICE AND CONNECTED TO OPERATE IN PARALLEL, MEANS FOR CONTROLLING GASEOUS FLUID FLOW THROUGH ONE OF SAID VENTURIS, CHAMBER MEANS WITHIN SAID CASING HAVING PRESSURE RESPONSIVE MEANS THEREIN, A PASSAGE CONNECTING THE OTHER OF SAID VENTURIS AND SAID CHAMBER MEANS TO ADMIT GASEOUS FLUID TO SAID CHAMBER MEANS TO MOVE SAID PRESSURE RESPONSIVE MEANS IN ONE DIRECTION, A PASSAGE CONNECTING SAID PASSAGE MEANS DOWNSTREAM OF SAID ORIFICE AND SAID CHAMBER MEANS TO ADMIT GASEOUS FLUID TO SAID CHAMBER MEANS TO MOVE SAID PRESSURE RESPONSIVE MEANS IN THE OPPOSITE DIRECTION, MEANS OPERATIVELY CONNECTED WITH SAID PRESSURE RESPONSIVE MEANS TO RECEIVE AN OUTPUT INDICATIVE OF THE DISPLACEMENT OF SAID PRESSURE RESPONSIVE MEANS, AND MEANS FOR ACTUATING SAID GASEOUS FLUID FLOW CONTROLLING MEANS IN RESPONSE TO SAID OUTPUT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |