Patent DE812906C successfully refreshed from Google Patents.
US3207422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow regulating means in aircraft air conditioning and pressurizing system
Assignee: RTX Corp
•
Filing: 1962-09-13
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Granted: 1965-09-21
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley G Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:46
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02; B64D13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7789; Y10T137/7833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
MEANS FOR REGULATING THE FLOW OF A GAS THROUGH A CONDUIT COMPRISING IN COMBINATION, MENS FOR ADJUSTING THE FLOW OF GAS THROUGH THE CONDUIT, MEANS DEFINING A FIRST PRESSURE SENSING PASSAGEWAY CONNECTED WITH THE CONDUIT IN SUCH MANNER THAT GAS IS SUPPLIED THERETO AT A FIRST PRESSURE, MEANS DEFINING A SECOND PRESSURE SENSING PASSAGEWAY CONNECTED WITH THE CONDUIT IN SUCH MANNER THAT GAS IS SUPPLIED THERETO AT A SECOND PRESSURE WHICH DIFFERS FROM SAID FIRST PRESSURE BUT WHICH IS RELATED TO SAID FIRST PRESSURE IN SUCH A WAY THAT THE DIFFERENTIAL BETWEEN SAID TWO PRESSURES IS DETERMINATIVE OF FLOW THROUGH THE CONDUIT, AND A CONTROL DEVICE CONNECTED WITH SAID FIRST AND SECOND PASSAGEWAYS AND INCLUDING FIRST AND SECOND CHAMBERS AND FIRST AND SECOND SPRING BIASED DIAPHRAGMS
Claim 2
Dependent Claim
126 words
MEANS FOR REGULATING THE FLOW OF A GAS THROUGH A CONDUIT COMPRISING IN COMBINATION, MENS FOR ADJUSTING THE FLOW OF GAS THROUGH THE CONDUIT, MEANS DEFINING A FIRST PRESSURE SENSING PASSAGEWAY CONNECTED WITH THE CONDUIT IN SUCH MANNER THAT GAS IS SUPPLIED THERETO AT A FIRST PRESSURE, MEANS DEFINING A SECOND PRESSURE SENSING PASSAGEWAY CONNECTED WITH THE CONDUIT IN SUCH MANNER THAT GAS IS SUPPLIED THERETO AT A SECOND PRESSURE WHICH DIFFERS FROM SAID FIRST PRESSURE BUT WHICH IS RELATED TO SAID FIRST PRESSURE IN SUCH A WAY THAT THE DIFFERENTIAL BETWEEN SAID TWO PRESSURES IS DETERMINATIVE OF FLOW THROUGH THE CONDUIT, AND A CONTROL DEVICE CONNECTED WITH SAID FIRST AND SECOND PASSAGEWAYS AND INCLUDING FIRST AND SECOND CHAMBERS AND FIRST AND SECOND SPRING BIASED DIAPHRAGMS
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |