Patent US1709865A successfully refreshed from Google Patents.
US3140726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring device for measuring a fluid flow
Assignee: Chlorator GmbH
•
Filing: 1960-08-18
•
Granted: 1964-07-14
•
Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Arenhold Karl-Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836; Y10T137/8158; Y10T137/8326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN AN INSTALLATION IN WHICH TREATMENT FLUID IS FED FROM A SUPPLY OF TREATMENT FLUID TO A FLUID FLOW TO BE TREATED THROUGH A FEED CONDUIT MAINTAINED AT A SUB-ATMOSPHERIC PRESSURE BY A SUCTION MEANS, A CLOSED HOUSING, ONE WALL OF SAID HOUSING BEING FORMED BY A DIAPHRAGM DEFLECTED IN RESPONSE TO A PRESSURE DIFFERENTIAL BETWEEN THE PRESSURE WITHIN THE HOUSING AND THE AMBIENT ATMOSPHERE, SAID HOUSING BEING INTERPOSED BETWEEN FEED CONDUIT PORTIONS LEADING TO SAID TREATMENT FLUID SUPPLY AND SAID SUCTION MEANS RESPECTIVELY THEREBY SUBJECTING THE SAID HOUSING TO THE PRESSURE CONDITION IN THE FEED CONDUIT, VALVE MEANS WITHIN SAID HOUSING CONTROLLED BY THE DEFLECTION OF SAID DIAPHRAGM IN RESPONSE TO SAID PRESSURE DIFFERENTIAL AND CONTROLLING THE RATE OF FLOW OF TREATMENT FLUID THROUGH SAID
Claim 2
Dependent Claim
126 words
IN AN INSTALLATION IN WHICH TREATMENT FLUID IS FED FROM A SUPPLY OF TREATMENT FLUID TO A FLUID FLOW TO BE TREATED THROUGH A FEED CONDUIT MAINTAINED AT A SUB-ATMOSPHERIC PRESSURE BY A SUCTION MEANS, A CLOSED HOUSING, ONE WALL OF SAID HOUSING BEING FORMED BY A DIAPHRAGM DEFLECTED IN RESPONSE TO A PRESSURE DIFFERENTIAL BETWEEN THE PRESSURE WITHIN THE HOUSING AND THE AMBIENT ATMOSPHERE, SAID HOUSING BEING INTERPOSED BETWEEN FEED CONDUIT PORTIONS LEADING TO SAID TREATMENT FLUID SUPPLY AND SAID SUCTION MEANS RESPECTIVELY THEREBY SUBJECTING THE SAID HOUSING TO THE PRESSURE CONDITION IN THE FEED CONDUIT, VALVE MEANS WITHIN SAID HOUSING CONTROLLED BY THE DEFLECTION OF SAID DIAPHRAGM IN RESPONSE TO SAID PRESSURE DIFFERENTIAL AND CONTROLLING THE RATE OF FLOW OF TREATMENT FLUID THROUGH SAID
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |