US3367256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cabin air flow control system
Assignee: Garrett Corp
•
Filing: 1966-02-15
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Granted: 1968-02-06
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Expires: 1986-02-15
Abstract
No abstract record available.
Inventors
- 👤 Richard W Townsend
- 👤 Charles M Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02; B64D13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2572
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A SYSTEM FOR CONTROLLING AIR FLOW FROM A PLURALITY OF SOURCES AT DIFFERENT PRESSURES TO AN ENCLOSURE COMPRISING: (A) A MAIN DUCT WITH A PLURALITY OF INLETS COMMUNICATING WITH THE PLURALITY OF SOURCES AND AN OUTLET COMMUNICATING WITH ENCLOSURE, SAID MAIN DUCT HAVING A VENTURI SECTION; (B) EJECTOR MEANS POSITIONED WITHIN SAID MAIN DUCT AT THE INLET TO SAID VENTURI SECTION, SAID EJECTOR MEANS INCLUDING A NOZZLE AND BEING PROVIDED TO UTILIZE AIR FROM THE HIGHER PRESSURE SOURCE TO AUGMENT AIR FLOW FROM A LOWER PRESSURE SOURCE; AND (C) VALVE MEANS REPONSIVE IN PART TO VARIATIONS IN THE PRESSURE DIFFERENTIAL BETWEEN THE THROAT AND OUTLET
Claim 2
Independent Claim
105 words
A SYSTEM FOR CONTROLLING AIR FLOW FROM A PLURALITY OF SOURCES AT DIFFERENT PRESSURES TO AN ENCLOSURE COMPRISING: (A) A MAIN DUCT WITH A PLURALITY OF INLETS COMMUNICATING WITH THE PLURALITY OF SOURCES AND AN OUTLET COMMUNICATING WITH ENCLOSURE, SAID MAIN DUCT HAVING A VENTURI SECTION; (B) EJECTOR MEANS POSITIONED WITHIN SAID MAIN DUCT AT THE INLET TO SAID VENTURI SECTION, SAID EJECTOR MEANS INCLUDING A NOZZLE AND BEING PROVIDED TO UTILIZE AIR FROM THE HIGHER PRESSURE SOURCE TO AUGMENT AIR FLOW FROM A LOWER PRESSURE SOURCE; AND (C) VALVE MEANS REPONSIVE IN PART TO VARIATIONS IN THE PRESSURE DIFFERENTIAL BETWEEN THE THROAT AND OUTLET
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) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |