US3248941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soap film type gas flow measuring device
Assignee: Sunoco Inc
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Filing: 1963-12-27
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Granted: 1966-05-03
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Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Billy W Mcarthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:32
CPC Classifications
G; G01; G01F; G01F1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A GAS FLOW MEASURING DEVICE, A FLOW TUBE, MEANS FOR CAUSING THE GAS WHOSE FLOW RATE IS TO BE MEASURED TO FLOW THROUGH SAID TUBE, A RECEPTACLE CONTAINING A SOAP SOLUTION, A MEMBER WITHIN SAID RECEPTACLE AND HAVING AN APERTURE THROUGH WHCH SAID GAS FLOWS ON ITS WAY TO SAID TUBE, SAID MEMBER BEING MOUNTED FOR MOVEMENT WITH RESPECT TO SAID RECEPTACLE SUCH THAT SAID APERTURE IS MOVABLE INTO AND OUT OF SAID SOAP SOLUTION; MANUALLY-OPERABLE MEANS FOR MOVING SAID APERTURE INTO AND THEN OUT OF SAID SOAP SOLUTION, THEREBY TO FORM A SOAP FILM ACROSS SAID APERTURE WHICH IS TRANSFERED TO SAID TUBE BY SAID GAS, AND MEANS FOR DETERMINING THE TIME REQUIRED FOR SAID FILM TO TRAVERSE A KNOWN VOLUME IN SAID TUBE.
Claim 2
Dependent Claim
126 words
IN A GAS FLOW MEASURING DEVICE, A FLOW TUBE, MEANS FOR CAUSING THE GAS WHOSE FLOW RATE IS TO BE MEASURED TO FLOW THROUGH SAID TUBE, A RECEPTACLE CONTAINING A SOAP SOLUTION, A MEMBER WITHIN SAID RECEPTACLE AND HAVING AN APERTURE THROUGH WHCH SAID GAS FLOWS ON ITS WAY TO SAID TUBE, SAID MEMBER BEING MOUNTED FOR MOVEMENT WITH RESPECT TO SAID RECEPTACLE SUCH THAT SAID APERTURE IS MOVABLE INTO AND OUT OF SAID SOAP SOLUTION; MANUALLY-OPERABLE MEANS FOR MOVING SAID APERTURE INTO AND THEN OUT OF SAID SOAP SOLUTION, THEREBY TO FORM A SOAP FILM ACROSS SAID APERTURE WHICH IS TRANSFERED TO SAID TUBE BY SAID GAS, AND MEANS FOR DETERMINING THE TIME REQUIRED FOR SAID FILM TO TRAVERSE A KNOWN VOLUME IN SAID TUBE.
References Cited (Backward Citations)
US2967450A
Cited
US3000207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |