US3200591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarized solenoid actuating system
Assignee: TDK Micronas GmbH
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Filing: 1963-09-30
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Granted: 1965-08-17
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:15
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; F16K31/082; F15; F15B; F15B9/00; F15B9/02; F15B9/03; H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1607; H01F7/1615; H01F7/121; H01F7/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A SYSTEM OF THE CHARACTER DESCRIBED, A FIRST FLUID CYLINDER; A FIRST PISTON IN SAID CYLINDER; A SECOND FLUID CYLINDER; A SECOND PISTON IN SAID SECOND CYLINDER; CHECK VALVE MEANS IN SAID FIRST CYLINDER OPENED BY PRESSURE DEVELOPED IN SAID FIRST CYLINDER BY MOVEMENT OF SAID FIRST PISTON THEREIN; SID CHECK VALVE MEANS HAVING ITS OUTLET IN COMMUNICATION WITH SAID SECOND CYLINDER; A PAIR OF RADIALLY EXTENDING AND LONGITUDINALLY SPACED PORTS IN SAID FIRST CYLINDER; ONE OF SAID PORTS BEING IN COMMUNICATION WITH SAID SECOND CYLINDER; THE OTHER OF SAID PORTS BEING IN COMMUNICATION WITH A FLUID SOURCE;; CONTACT MEANS, MEANS CONTROLLED BY THE POSITION OF SAID SECOND PISTON FOR ACTUATING SAID CONTACT MEANS, ELECTROMAGNETIC MEANS CONTROLLED BY SAID CONTACT MEANS FOR PRODUCING MOVEMENT OF SAID FIRST PISTON WITH RESPECT TO SAID PORTS; AND A UTILIZATION MEANS CONNECTED TO SAID SECOND PISTON.
Claim 2
Dependent Claim
143 words
IN A SYSTEM OF THE CHARACTER DESCRIBED, A FIRST FLUID CYLINDER; A FIRST PISTON IN SAID CYLINDER; A SECOND FLUID CYLINDER; A SECOND PISTON IN SAID SECOND CYLINDER; CHECK VALVE MEANS IN SAID FIRST CYLINDER OPENED BY PRESSURE DEVELOPED IN SAID FIRST CYLINDER BY MOVEMENT OF SAID FIRST PISTON THEREIN; SID CHECK VALVE MEANS HAVING ITS OUTLET IN COMMUNICATION WITH SAID SECOND CYLINDER; A PAIR OF RADIALLY EXTENDING AND LONGITUDINALLY SPACED PORTS IN SAID FIRST CYLINDER; ONE OF SAID PORTS BEING IN COMMUNICATION WITH SAID SECOND CYLINDER; THE OTHER OF SAID PORTS BEING IN COMMUNICATION WITH A FLUID SOURCE;; CONTACT MEANS, MEANS CONTROLLED BY THE POSITION OF SAID SECOND PISTON FOR ACTUATING SAID CONTACT MEANS, ELECTROMAGNETIC MEANS CONTROLLED BY SAID CONTACT MEANS FOR PRODUCING MOVEMENT OF SAID FIRST PISTON WITH RESPECT TO SAID PORTS; AND A UTILIZATION MEANS CONNECTED TO SAID SECOND PISTON.
References Cited (Backward Citations)
US2620628A
Cited
US2751753A
Cited
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 |