Patent US3095784A successfully refreshed from Google Patents.
US3095784A
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Electro-hydraulic control servomechanisms
Assignee: Short Brothers PLC
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Filing: 1960-07-14
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Granted: 1963-07-02
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Expires: 1980-07-14
Abstract
No abstract record available.
Inventors
- 👤 Colhoun Robert Sydney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:19
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0077; B; B64; B64C; B64C13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ELECTRO-HYDRAULIC SERVO SYSTEM COMPRISING A COMMON INPUT CONTROL MEMBER, A COMMON OUTPUT MEMBER, AT LEAST THREE INDEPENDENT CHANNELS FOR THE TRANSMISSION OF SIGNALS FROM THE INPUT CONTROL MEMBER TO THE OUTPUT MEMBER, EACH CHANNEL COMPRISING A FIRST MOTOR RESPONSIVE TO MOVEMENT OF THE INPUT CONTROL MEMBER, A HYDRAULIC SERVO MOTOR MECHANICALLY COUPLED TO DRIVE THE COMMON OUTPUT MEMBER, MEANS FOR SUPPLYING DRAULIC FLUID TO THE HYDRAULIC SERVO MOTOR, A HYDRAULIC SERVO VALVE COUPLED TO BE OPERATED BY THE SAID FIRST MOTOR, MEANS FOR EFFECTIVELY COMPARING THE POSTION OF THE SERVO VALVE IN EACH OF THE CHANNELS WITH THE POSITION OF THE SERVO VALVE IN EACH OF TWO OTHER CHANNELS, AND WARNING MEANS RESPONSIVE TO A
Claim 2
Dependent Claim
116 words
AN ELECTRO-HYDRAULIC SERVO SYSTEM COMPRISING A COMMON INPUT CONTROL MEMBER, A COMMON OUTPUT MEMBER, AT LEAST THREE INDEPENDENT CHANNELS FOR THE TRANSMISSION OF SIGNALS FROM THE INPUT CONTROL MEMBER TO THE OUTPUT MEMBER, EACH CHANNEL COMPRISING A FIRST MOTOR RESPONSIVE TO MOVEMENT OF THE INPUT CONTROL MEMBER, A HYDRAULIC SERVO MOTOR MECHANICALLY COUPLED TO DRIVE THE COMMON OUTPUT MEMBER, MEANS FOR SUPPLYING DRAULIC FLUID TO THE HYDRAULIC SERVO MOTOR, A HYDRAULIC SERVO VALVE COUPLED TO BE OPERATED BY THE SAID FIRST MOTOR, MEANS FOR EFFECTIVELY COMPARING THE POSTION OF THE SERVO VALVE IN EACH OF THE CHANNELS WITH THE POSITION OF THE SERVO VALVE IN EACH OF TWO OTHER CHANNELS, AND WARNING MEANS RESPONSIVE TO A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |