US3086470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for increasing fluid pressure
Assignee: SKIPOR
•
Filing: 1960-03-28
•
Granted: 1963-04-23
•
Expires: 1980-03-28
Abstract
No abstract record available.
Inventors
- 👤 Skipor Eugen
- 👤 Bachynskyj Serhij
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:04
CPC Classifications
F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/063; F04; F04B; F04B43/00; F04B43/0009; F04B43/0081; F04B43/009; F04B43/02; F04B43/028; F04B43/06; F04B43/073; F04B53/00; F04B53/10; F04B53/12; F04B53/125; F04B9/00; F04B9/08; F04B9/10; F04B9/103; F04B9/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A SYSTEM FOR INCREASING FLUID PRESSURE THE COMBINATION INCLUDING, AN INLET CONDUIT FOR A SOURCE OF LIQUID UNDER PRESSURE, A FIRST VALVE HOUSING AND A SECOND VALVE HOUSING, SAID INLET CONDUIT BEING CONNECTED TO SAID VALVE HOUSINGS, A SLIDE VALVE ASSEMBLY IN SAID FIRST VALVE HOUSING, A SLIDE VALVE IN SAID SECOND VALVE HOUSING, A LOWER CYLINDER AND AN UPPER CYLINDER POSITIONED IN AXIAL ALIGNMENT, SAID LOWER CYLINDER BEING OF GREATER DIAMETER THAN SAID UPPER CYLINDER, PISTONS SLIDABLY ARRANGED IN EACH OF SAID CYLINDERS, A HOLLOW ROD CONNECTING SAID CYLINDER PISTONS WHEREBY LIQUID MAY FLOW FROM THE UNDERSIDE OF SAID LOWER CYLINDER PISTON THROUGH SAID HOLLOW ROD TO THE TOP SIDE OF SAID UPPER CYLINDER PISTON, A FIRST CHECK VALVE ARRANGED TO ALLOW ONE WAY FLOW OF LIQUID FROM THE LOWER CYLINDER TO THE UPPER CYLINDER AND A SECOND CHECK
Claim 2
Dependent Claim
141 words
IN A SYSTEM FOR INCREASING FLUID PRESSURE THE COMBINATION INCLUDING, AN INLET CONDUIT FOR A SOURCE OF LIQUID UNDER PRESSURE, A FIRST VALVE HOUSING AND A SECOND VALVE HOUSING, SAID INLET CONDUIT BEING CONNECTED TO SAID VALVE HOUSINGS, A SLIDE VALVE ASSEMBLY IN SAID FIRST VALVE HOUSING, A SLIDE VALVE IN SAID SECOND VALVE HOUSING, A LOWER CYLINDER AND AN UPPER CYLINDER POSITIONED IN AXIAL ALIGNMENT, SAID LOWER CYLINDER BEING OF GREATER DIAMETER THAN SAID UPPER CYLINDER, PISTONS SLIDABLY ARRANGED IN EACH OF SAID CYLINDERS, A HOLLOW ROD CONNECTING SAID CYLINDER PISTONS WHEREBY LIQUID MAY FLOW FROM THE UNDERSIDE OF SAID LOWER CYLINDER PISTON THROUGH SAID HOLLOW ROD TO THE TOP SIDE OF SAID UPPER CYLINDER PISTON, A FIRST CHECK VALVE ARRANGED TO ALLOW ONE WAY FLOW OF LIQUID FROM THE LOWER CYLINDER TO THE UPPER CYLINDER AND A SECOND CHECK
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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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |