US3084513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrohydraulic actuator
Assignee: General Controls Co
•
Filing: 1960-03-08
•
Granted: 1963-04-09
•
Expires: 1980-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jr William H L Casassa
- 👤 Richard D Sibley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:10
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/046; F15; F15B; F15B15/00; F15B15/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN A CONTROL SYSTEM: AN ACTUATOR HAVING A FLUID PRESSURE OPERATED ELEMENT FOR MOVING THE ACTUATOR; CONDUITS PROVIDING AN INLET PORT AND AN OUTLET PORT FOR THE ELEMENT; A PUMP STRUCTURE FOR SUPPLYING PRESSURIZED FLUID TO THE ELEMENT; AN ELECTRIC MOTOR FOR DRIVING THE PUMP STRUCTURE; A CIRCUIT CONTROLLER FOR THE MOTOR; MEANS FOR OPERATING THE CIRCUIT CONTROLLER TO DEENERGIZE THE MOTOR UPON ABNORMAL RESISTANCE ENCOUNTERED BY THE ACTUATOR COMPRISING A CASING; A BAR SLIDABLE IN THE CASING; PRESSURE
Claim 2
Dependent Claim
79 words
IN A CONTROL SYSTEM: AN ACTUATOR HAVING A FLUID PRESSURE OPERATED ELEMENT FOR MOVING THE ACTUATOR; CONDUITS PROVIDING AN INLET PORT AND AN OUTLET PORT FOR THE ELEMENT; A PUMP STRUCTURE FOR SUPPLYING PRESSURIZED FLUID TO THE ELEMENT; AN ELECTRIC MOTOR FOR DRIVING THE PUMP STRUCTURE; A CIRCUIT CONTROLLER FOR THE MOTOR; MEANS FOR OPERATING THE CIRCUIT CONTROLLER TO DEENERGIZE THE MOTOR UPON ABNORMAL RESISTANCE ENCOUNTERED BY THE ACTUATOR COMPRISING A CASING; A BAR SLIDABLE IN THE CASING; PRESSURE
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |