Patent US3145638A successfully refreshed from Google Patents.
US3145638A
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Flow balancing device for pressure control systems
Assignee: Garrett Corp
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Filing: 1959-08-03
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Granted: 1964-08-25
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Richard A Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:31
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02; A; A61; A61G; A61G10/00; A61G10/02; A61G10/023; F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/75; G; G05; G05D; G05D16/00; G05D16/14; G05D16/16; G05D16/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
MECHANISM FOR CONTROLLING THE PRESSURE IN AN ENCLOSURE HAVING A CONTINUOUS FLOW OF FLUID THERETHROUGH, INCLUDING: A PLURALITY OF OUTFLOW VALVES FOR CONTROLLING FLOW OF FLUID FROM THE ENCLOSURE, EACH OF SAID VALVE HAVING WALLS DEFINING A CHAMBER; CONTROL PRESSURE SETTING MECHANISM CONNECTED TO SAID CHAMBERS FOR ESTABLISHING A PRESELECTED OPERATING PRESSURE IN EACH OF SAID CHAMBERS; AND MEANS INCLUDING A PRESSURE CONTROLLER MEANS ADAPTED TO MODIFY THE OPERATING PRESSURE IN THE CHAMBER OF ONE OF SAID VALVE TO EFFECT A PREDETERMINED PROPORTIONAL FLOW THROUGH SAID VALVES, SAID PRESSURE CONTROLLER MEANS SENSING A PRESSURE DIFFERENTIAL INDICATIVE OF THE DIFFERENTIAL BETWEEN THE FLOW OF FLUID THROUGH ONE OF SAID PLURALITY OF OUTFLOW
Claim 2
Dependent Claim
111 words
MECHANISM FOR CONTROLLING THE PRESSURE IN AN ENCLOSURE HAVING A CONTINUOUS FLOW OF FLUID THERETHROUGH, INCLUDING: A PLURALITY OF OUTFLOW VALVES FOR CONTROLLING FLOW OF FLUID FROM THE ENCLOSURE, EACH OF SAID VALVE HAVING WALLS DEFINING A CHAMBER; CONTROL PRESSURE SETTING MECHANISM CONNECTED TO SAID CHAMBERS FOR ESTABLISHING A PRESELECTED OPERATING PRESSURE IN EACH OF SAID CHAMBERS; AND MEANS INCLUDING A PRESSURE CONTROLLER MEANS ADAPTED TO MODIFY THE OPERATING PRESSURE IN THE CHAMBER OF ONE OF SAID VALVE TO EFFECT A PREDETERMINED PROPORTIONAL FLOW THROUGH SAID VALVES, SAID PRESSURE CONTROLLER MEANS SENSING A PRESSURE DIFFERENTIAL INDICATIVE OF THE DIFFERENTIAL BETWEEN THE FLOW OF FLUID THROUGH ONE OF SAID PLURALITY OF OUTFLOW
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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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |