US3277916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid viscosity control
Assignee: Individual
•
Filing: 1961-12-22
•
Granted: 1966-10-11
•
Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Le Roy F Deming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:07
CPC Classifications
F; F23; F23N; F23N1/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2506
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A FLUID SYSTEM HAVING A MAIN FLUID CONDUIT, VARIABLE HEATING MEANS CONNECTED IN SAID MAIN CONDUIT FOR HEATING SAID FLUID AND PUMP MEANS CONNECTED IN THE MAIN CONDUIT FOR FORCING THE FLUID THERETHROUGH, A FLUID VISCOSITY CONTROL COMPRISING: A BYPASS FLUID CONDUIT CONNECTED TO SAID MAIN FLUID CONDUIT SO AS TO BYPASS A PORTION OF THE FLUID AROUND A PORTION OF THE MAIN CONDUIT; A CONSTANT FLOW PUMP CONNECTED IN SAID BYPASS CONDUIT FOR MAINTAINING A CONSTANT FLOW OF SAID FLUID THROUGH SAID BYPASS CONDUIT; AND MEANS OPERATIVELY CONNECTED TO SAID BYPASS CONDUIT FOR MAGNETICALLY SENSING THE VISCOSITY OF THE FLUID FLOWING THERETHROUGH AND FOR CONTROLLING THE HEAT OF THE VARIABLE HEATING MEANS AS A FUNCTION OF SAID VISCOSITY.
Claim 2
Dependent Claim
120 words
IN A FLUID SYSTEM HAVING A MAIN FLUID CONDUIT, VARIABLE HEATING MEANS CONNECTED IN SAID MAIN CONDUIT FOR HEATING SAID FLUID AND PUMP MEANS CONNECTED IN THE MAIN CONDUIT FOR FORCING THE FLUID THERETHROUGH, A FLUID VISCOSITY CONTROL COMPRISING: A BYPASS FLUID CONDUIT CONNECTED TO SAID MAIN FLUID CONDUIT SO AS TO BYPASS A PORTION OF THE FLUID AROUND A PORTION OF THE MAIN CONDUIT; A CONSTANT FLOW PUMP CONNECTED IN SAID BYPASS CONDUIT FOR MAINTAINING A CONSTANT FLOW OF SAID FLUID THROUGH SAID BYPASS CONDUIT; AND MEANS OPERATIVELY CONNECTED TO SAID BYPASS CONDUIT FOR MAGNETICALLY SENSING THE VISCOSITY OF THE FLUID FLOWING THERETHROUGH AND FOR CONTROLLING THE HEAT OF THE VARIABLE HEATING MEANS AS A FUNCTION OF SAID VISCOSITY.
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US2896656A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |