US3273389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating vane flowmeter
Assignee: Individual
•
Filing: 1963-12-09
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Granted: 1966-09-20
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Charles C Waugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:58
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A FLOWMETER FOR MEASURING THE RATE OF FLOW OF A FLUID THROUGH A CONDUIT, FLOW RATE SENSING MEANS COMPRISING, AN ELONGATED SUPPORT MEMBER WITHIN AND EXTENDING ALONG SAID CONDUIT, FIRST PIVOT MEANS PIVOTALLY MOUNTING SAID SUPPORT MEMBER ON SAID CONDUIT FOR TURNING ABOUT A FIRST PIVOTAL AXIS EXTENDING TRANSVERSELY OF SAID CONDUIT, FIRST VANE MEANS CONNECTED WITH SAID SUPPORT MEANS UPSTREAM OF SAID FIRST PIVOTAL AXIS, SECOND VANE MEANS LOCATED DOWNSTREAM OF SAID FIRST PIVOTAL AXIS, SECOND PIVOT MEANS PIVOTALLY SUPPORTING SAID SECOND VANE MEANS ON SAID SUPPORT MEMBER FOR TURNING ABOUT A SECOND PIVOTAL AXIS GENERALLY PARALLEL TO SAID FIRST PIVOTAL AXIS AND LOCATED DOWNSTREAM OF THE CENTER OF LIFT OF SAID SECOND VANE MEANS, AND STOP MEANS FOR LIMITING THE ANGULAR MOTION OF SAID SECOND VANE MEANS RELATIVE TO SAID SUPPORT MEMBER.
Claim 2
Dependent Claim
135 words
IN A FLOWMETER FOR MEASURING THE RATE OF FLOW OF A FLUID THROUGH A CONDUIT, FLOW RATE SENSING MEANS COMPRISING, AN ELONGATED SUPPORT MEMBER WITHIN AND EXTENDING ALONG SAID CONDUIT, FIRST PIVOT MEANS PIVOTALLY MOUNTING SAID SUPPORT MEMBER ON SAID CONDUIT FOR TURNING ABOUT A FIRST PIVOTAL AXIS EXTENDING TRANSVERSELY OF SAID CONDUIT, FIRST VANE MEANS CONNECTED WITH SAID SUPPORT MEANS UPSTREAM OF SAID FIRST PIVOTAL AXIS, SECOND VANE MEANS LOCATED DOWNSTREAM OF SAID FIRST PIVOTAL AXIS, SECOND PIVOT MEANS PIVOTALLY SUPPORTING SAID SECOND VANE MEANS ON SAID SUPPORT MEMBER FOR TURNING ABOUT A SECOND PIVOTAL AXIS GENERALLY PARALLEL TO SAID FIRST PIVOTAL AXIS AND LOCATED DOWNSTREAM OF THE CENTER OF LIFT OF SAID SECOND VANE MEANS, AND STOP MEANS FOR LIMITING THE ANGULAR MOTION OF SAID SECOND VANE MEANS RELATIVE TO SAID SUPPORT MEMBER.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |