US3077838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipeless pumping
Assignee: Harwood Engineering Co
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Filing: 1960-12-30
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Granted: 1963-02-19
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 George F Maglott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:20
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/08; F04B9/10; F04B9/109; F04B9/117; F04B9/1172; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F04B37/00; F04B37/10; F04B37/12; F04B41/00; F04B41/06; F04B9/111; F04B9/113
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN AN INTENSIFER ASSEMBLY COMPRISING A PLURALITY OF INTENSIFIER UNITS EACH HAVING A LOW PRESSURE PISTON FACE AND A HIGH PRESSURE PISTON FACE, A HIGH PRESSURE MANIFOLD, AND PIPE CONNECTIONS FROM EACH SAID HIGH PRESSURE PISTON FACE TO SAID HIGH PRESSURE MANIFOLD, AND MEANS FOR SUPPLYING A COMPRESSIBLE FLUID AT A PRECOMPRESSION PRESSURE TO SAID HIGH PRESSURE PISTON FACES, THE COMBINATION OF MEANS FOR SUPPLYING A NON-COMPRESSIBLE FLUID AT LOW PRESSURE TO SAID LOW PRESSURE PISTON FACES WHICH INCLUDES A NON-COMPRESSIBLE FLUID PUMP ADAPTED TO SUPPLY SAID NONCOMPRESSIBLE FLUID AT A CONSTANT PREDETERMINED PRESSURE, PIPE CONNECTIONS FROM THE PUMP TO A SAID LOW PRESSURE PISTON FACE, A THROTTLE VALVE IN SAID PIPE CONNECTION ADAPTED TO PRODUCE A PREDETERMINED PRESSURE DROP FROM AN UPSTREAM PRESSURE TO A DOWNSTREAM PRESSURE ACROSS SAID THROTTLE VALVE, A PILOT RELIEF VALVE HAVING AN OPERATIVE CONNECTION WITH SAID THROTTLE VALVE WHEREBY SAID PILOT RELIEF VALVE IS OPERABLE TO FURTHER INCREASE THE PRES-
Claim 2
Dependent Claim
156 words
IN AN INTENSIFER ASSEMBLY COMPRISING A PLURALITY OF INTENSIFIER UNITS EACH HAVING A LOW PRESSURE PISTON FACE AND A HIGH PRESSURE PISTON FACE, A HIGH PRESSURE MANIFOLD, AND PIPE CONNECTIONS FROM EACH SAID HIGH PRESSURE PISTON FACE TO SAID HIGH PRESSURE MANIFOLD, AND MEANS FOR SUPPLYING A COMPRESSIBLE FLUID AT A PRECOMPRESSION PRESSURE TO SAID HIGH PRESSURE PISTON FACES, THE COMBINATION OF MEANS FOR SUPPLYING A NON-COMPRESSIBLE FLUID AT LOW PRESSURE TO SAID LOW PRESSURE PISTON FACES WHICH INCLUDES A NON-COMPRESSIBLE FLUID PUMP ADAPTED TO SUPPLY SAID NONCOMPRESSIBLE FLUID AT A CONSTANT PREDETERMINED PRESSURE, PIPE CONNECTIONS FROM THE PUMP TO A SAID LOW PRESSURE PISTON FACE, A THROTTLE VALVE IN SAID PIPE CONNECTION ADAPTED TO PRODUCE A PREDETERMINED PRESSURE DROP FROM AN UPSTREAM PRESSURE TO A DOWNSTREAM PRESSURE ACROSS SAID THROTTLE VALVE, A PILOT RELIEF VALVE HAVING AN OPERATIVE CONNECTION WITH SAID THROTTLE VALVE WHEREBY SAID PILOT RELIEF VALVE IS OPERABLE TO FURTHER INCREASE THE PRES-
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |