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US3139747A
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Flow regulator
Assignee: ConocoPhillips Co
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Filing: 1961-07-03
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Granted: 1964-07-07
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Howard H Ferrell
- 👤 Carroll F Knutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:27
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/08; G01N15/0806; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
APPARATUS FOR CONTROLLING FLOW CONDITIONS IN A WORK AREA WHICH COMPRISES MEANS FOR SELECTIVELY PRODUCING A CONSTANT VOLUME OUTPUT, MEANS FOR DRIVING SAID OUTPUT MEANS, A CONDUIT DISPOSED BETWEEN SAID CONSTANT OUTPUT MEANS AND SAID WORK AREA FOR DIRECTING FLOW THEREBETWEEN, AN OUTFLOW CONDUIT FOR CHANNELING FLOW AWAY FROM SAID AREA, A RESTRICTION IN SAID OUTFLOW CONDUIT, MEANS FOR SELECTIVELY PRODUCING AND AUTOMATICALLY MAINTAINING A CONSTANT PRESSURE OUTPUT INDEPENDENTLY OF CHANGES IN THE VOLUMETRIC OUTPUT OF SAID MEANS FOR SELECTIVELY PRODUCING A CONSTANT VOLUME OUTPUT, MEANS FOR ACTUATING SAID LASTNAMED MEANS, AND CHANNELING MEANS FOR DIRECTING FLOW FROM SAID CONSTANT PRESSURE OUTPUT MEANS TO SAID OUTFLOW CONDUIT AT A POINT BETWEEN SAID RESTRICTION AND SAID WORK AREA.
Claim 2
Dependent Claim
117 words
APPARATUS FOR CONTROLLING FLOW CONDITIONS IN A WORK AREA WHICH COMPRISES MEANS FOR SELECTIVELY PRODUCING A CONSTANT VOLUME OUTPUT, MEANS FOR DRIVING SAID OUTPUT MEANS, A CONDUIT DISPOSED BETWEEN SAID CONSTANT OUTPUT MEANS AND SAID WORK AREA FOR DIRECTING FLOW THEREBETWEEN, AN OUTFLOW CONDUIT FOR CHANNELING FLOW AWAY FROM SAID AREA, A RESTRICTION IN SAID OUTFLOW CONDUIT, MEANS FOR SELECTIVELY PRODUCING AND AUTOMATICALLY MAINTAINING A CONSTANT PRESSURE OUTPUT INDEPENDENTLY OF CHANGES IN THE VOLUMETRIC OUTPUT OF SAID MEANS FOR SELECTIVELY PRODUCING A CONSTANT VOLUME OUTPUT, MEANS FOR ACTUATING SAID LASTNAMED MEANS, AND CHANNELING MEANS FOR DIRECTING FLOW FROM SAID CONSTANT PRESSURE OUTPUT MEANS TO SAID OUTFLOW CONDUIT AT A POINT BETWEEN SAID RESTRICTION AND SAID WORK AREA.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |