US2799165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring flow
Assignee: Phillips Petroleum Co
•
Filing: 1953-08-24
•
Granted: 1957-07-16
•
Expires: 1973-08-24
Abstract
No abstract record available.
Inventors
- 👤 Charles W Varvel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:21
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
APPARATUS FOR MEASURING FLOW WHICH COMPRISES, IN COMBINATION,A CONDUIT, MEANS FOR PASSING FLUID THROUGH SAID CONDUIT, MEANS DEFINING A RESTRICTION, IN SAID CONDUIT, A LINE BYPASSING SAID RESTRICTION, A VALVE IN LINE, A HEATER IN SAID LINE UPSTREAM OF SAID VALVE, SAID HEATER BEING ACTUATABLE TO HEAT THE FLUID IN THE PORTION OF SAID LINE UPSTREAM OF THE VALVE, SAID VALVE BEING OPERABLE TO DISCHARGE THE THUS HEATED FLUID INTO THE CONDUIT, A TEMPERATURE-SENSITIVE ELEMENT POSITIONED IN SAID CONDUIT AT A LOCATION DOWNSTREAM OF SAID BYPASS LINE, AND AN INDICATOR COOPERATING WITH SAID TEMPERATURE-RESPONSIVE DEVICE TO INDICATE THE TIME OF PASSAGE OF HEATING FLUID PAST SAID TEMPERATURE-RESPONSIVE DEVICE.
Claim 2
Dependent Claim
108 words
APPARATUS FOR MEASURING FLOW WHICH COMPRISES, IN COMBINATION,A CONDUIT, MEANS FOR PASSING FLUID THROUGH SAID CONDUIT, MEANS DEFINING A RESTRICTION, IN SAID CONDUIT, A LINE BYPASSING SAID RESTRICTION, A VALVE IN LINE, A HEATER IN SAID LINE UPSTREAM OF SAID VALVE, SAID HEATER BEING ACTUATABLE TO HEAT THE FLUID IN THE PORTION OF SAID LINE UPSTREAM OF THE VALVE, SAID VALVE BEING OPERABLE TO DISCHARGE THE THUS HEATED FLUID INTO THE CONDUIT, A TEMPERATURE-SENSITIVE ELEMENT POSITIONED IN SAID CONDUIT AT A LOCATION DOWNSTREAM OF SAID BYPASS LINE, AND AN INDICATOR COOPERATING WITH SAID TEMPERATURE-RESPONSIVE DEVICE TO INDICATE THE TIME OF PASSAGE OF HEATING FLUID PAST SAID TEMPERATURE-RESPONSIVE DEVICE.
References Cited (Backward Citations)
US2015249A
Cited
US2344771A
Cited
US2501960A
Cited
GB649030A
Cited
US2603089A
Cited
US2536082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |