US3200596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder and piston arrangement
Assignee: Power Control Products Inc
•
Filing: 1962-04-30
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Granted: 1965-08-17
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Olson
- 👤 Howard W Ronfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:03
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/06; F15B11/072; F15B11/076; F15B2211/00; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/40576; F15B2211/40584; F15B2211/60; F15B2211/625; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7055; F15B2211/80; F15B2211/885; F15B2211/8855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN AN AIR OPERATED HYDRAULICALLY CONTROLLED AIR PISTON AND CYLINDER ARRANGEMENT, AN ELONGATED AIR CYLINDER, AN AIR PISTON AND ROD SLIDABLY CARRIED IN SAID CYLINDER FOR RECIPROCATING MOVEMENT THEREIN, SAID AIR PISTON ROD BEING TUBULAR, HYDRAULIC CONTROL MEANS CARRIED THROUGH THE HEAD END OF SAID CYLINDER AND EXTENDING THROUGH SAID AIR PISTON AND INTO SAID AIR PISTON ROD FOR APPLYING HYDRAULIC CONTROL FORCES ON SAID AIR PISTON ROD TO CHECK THE SPEED OF MOVEMENT OF SAID AIR PISTON ROD IN ONE DIRECTION AND TO AUGMENT THE DIRECTLY APPLIED AIR PRESSURE ON SAID AIR PISTON AND ROD IN THE OTHER DIRECTION, AND SAID HYDRAULIC CONTROL MEANS COMPRISING A SECOND CYLINDER CARRIED ON THE HEAD END OF THE FIRST CYLINDER, A HYDRAULIC PISTON SLIDABLY CARRIED IN SAID SECOND CYLINDER, HYDRAULIC CIRCUIT MEANS CONNECTING SAID SECOND CYLINDER, HYDRAULIC CIRCUIT MEANS AND AIR CIRCUIT MEANS FOR APPLYING AIR PRESSURE TO SAID HYDRAULIC PISTON IN SAID SECOND CYLINDER TO AUGMENT SAID DIRECTLY APPLIED AIR PRESSURE ON SAID AIR PISTON AND ROD IN SAID OTHER DIRECTION.
Claim 2
Dependent Claim
170 words
IN AN AIR OPERATED HYDRAULICALLY CONTROLLED AIR PISTON AND CYLINDER ARRANGEMENT, AN ELONGATED AIR CYLINDER, AN AIR PISTON AND ROD SLIDABLY CARRIED IN SAID CYLINDER FOR RECIPROCATING MOVEMENT THEREIN, SAID AIR PISTON ROD BEING TUBULAR, HYDRAULIC CONTROL MEANS CARRIED THROUGH THE HEAD END OF SAID CYLINDER AND EXTENDING THROUGH SAID AIR PISTON AND INTO SAID AIR PISTON ROD FOR APPLYING HYDRAULIC CONTROL FORCES ON SAID AIR PISTON ROD TO CHECK THE SPEED OF MOVEMENT OF SAID AIR PISTON ROD IN ONE DIRECTION AND TO AUGMENT THE DIRECTLY APPLIED AIR PRESSURE ON SAID AIR PISTON AND ROD IN THE OTHER DIRECTION, AND SAID HYDRAULIC CONTROL MEANS COMPRISING A SECOND CYLINDER CARRIED ON THE HEAD END OF THE FIRST CYLINDER, A HYDRAULIC PISTON SLIDABLY CARRIED IN SAID SECOND CYLINDER, HYDRAULIC CIRCUIT MEANS CONNECTING SAID SECOND CYLINDER, HYDRAULIC CIRCUIT MEANS AND AIR CIRCUIT MEANS FOR APPLYING AIR PRESSURE TO SAID HYDRAULIC PISTON IN SAID SECOND CYLINDER TO AUGMENT SAID DIRECTLY APPLIED AIR PRESSURE ON SAID AIR PISTON AND ROD IN SAID OTHER DIRECTION.
References Cited (Backward Citations)
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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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |