US3269676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve actuator apparatus
Assignee: Unisys Corp
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Filing: 1965-04-30
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Granted: 1966-08-30
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Hopkins Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:42
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; B64C13/38; B64C13/40; B64C13/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
APPARATUS FOR DRIVING AN OUTPUT MEMBER IN RESPONSE TO COMMAND SIGNALS COMPRISING FIRST AND SECOND POWER ACTUATOR MEANS COUPLED TO DRIVE SIMULTANEOUSLY THE OUTPUT MEMBER FIRST AND SECOND CONTROL ACUTATOR MEANS RESPONSIVE TO SAID COMMAND SIGNALS FOR APPLYING FLUID UNDER PRESSURE TO DRIVE RESPECTIVELY SAID FIRST AND SECOND POWER ACTUATOR MEANS, MEANS FOR COUPLING THE FLUID APPLIED BY SAID FIRST CONTROL ACTUATOR MEANS TO DRIVE BOTH SAID POWER ACTUATOR MEANS WHEN SAID SECOND CONTROL ACTUATOR MEANS IS UNRESPONSIVE TO THE COMMAND SIGNALS, AND MEANS FOR COUPLING THE FLUID APPLIED BY SAID SECOND CONTROL ACTUATOR MEANS TO DRIVE BOTH SAID POWER ACTUATOR MEANS WHEN SAID FIRST CONTROL ACTUATOR MEANS IS UNRESPONSIVE TO THE COMMAND SIGNALS.
Claim 2
Dependent Claim
114 words
APPARATUS FOR DRIVING AN OUTPUT MEMBER IN RESPONSE TO COMMAND SIGNALS COMPRISING FIRST AND SECOND POWER ACTUATOR MEANS COUPLED TO DRIVE SIMULTANEOUSLY THE OUTPUT MEMBER FIRST AND SECOND CONTROL ACUTATOR MEANS RESPONSIVE TO SAID COMMAND SIGNALS FOR APPLYING FLUID UNDER PRESSURE TO DRIVE RESPECTIVELY SAID FIRST AND SECOND POWER ACTUATOR MEANS, MEANS FOR COUPLING THE FLUID APPLIED BY SAID FIRST CONTROL ACTUATOR MEANS TO DRIVE BOTH SAID POWER ACTUATOR MEANS WHEN SAID SECOND CONTROL ACTUATOR MEANS IS UNRESPONSIVE TO THE COMMAND SIGNALS, AND MEANS FOR COUPLING THE FLUID APPLIED BY SAID SECOND CONTROL ACTUATOR MEANS TO DRIVE BOTH SAID POWER ACTUATOR MEANS WHEN SAID FIRST CONTROL ACTUATOR MEANS IS UNRESPONSIVE TO THE COMMAND SIGNALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |