Patent US3078402A successfully refreshed from Google Patents.
US3078402A
Expired / Lapsed
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Method and apparatus for synchronized drives
Assignee: Westinghouse Electric Corp
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Filing: 1958-10-20
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Granted: 1963-02-19
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Expires: 1978-10-20
Abstract
No abstract record available.
Inventors
- 👤 Geraid E Mathias
- 👤 Jr Charles G Helmick
- 👤 Robert W Egglestone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:13
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/46; H02P5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
A CONTROL SYSTEM FOR APPARATUS FOR TREATING WORK PROGRESSIVELY IN A PLURALITY OF POSITIONS, SAID APPARATUS INCLUDING MEANS AT EACH OF SAID POSITIONS FOR TREATING SAID WORK AND DRIVE MEANS CONNECTED TO EACH OF SAID TREATING MEANS FOR ACTUATING SAID TREATING MEANS, THE SAID CONTROL SYSTEM INCLUDING POSITION REGULATING MEANS CONNECTED TO EACH OF SAID DRIVE MEANS FOR ADJUSTING THE POSITION OF THE ASSOCIATED DRIVE MEANS, MEANS CONNECTED TO EACH OF SAID DRIVE MEANS FOR DERIVING A SIGNAL DEPENDENT ON THE POSITION OF THE ASSOCIATED DRIVE MEANS, MEANS CONNECTED TO SAID SIGNAL DERIVING MEANS OF ALL OF SAID DRIVE MEANS FOR DERIVING A SIGNAL CORRESPONDING TO THE AVERAGE OF THE POSITION DEPENDENT SIGNALS OF ALL OF SAID DRIVE MEANS, MEANS CONNECTED TO EACH OF SAID POSITION DEPENDENT SIGNAL DERIVING MEANS AND TO SAID AVERAGE SIGNAL DERIVING MEANS FOR DERIVING FOR EACH DRIVE MEANS A SIGNAL DEPENDENT ON THE ALGEBRAIC DIFFERENCE BETWEEN SAID AVERAGE SIGNAL AND THE POSITION DEPENDENT SIGNAL FOR THE ASSOCIATED DRIVE MEANS, AND MEANS CONNECTED TO EACH OF SAID REGULATING MEANS AND TO ASSOCIATED DIFFERENCE SIGNAL DERIVING MEANS FOR CAUSING SAID REGULATING MEANS TO SET THE ASSOCIATED DRIVE MEANS TO THE POSITION CORRESPONDING TO SAID AVERAGE SIGNAL.
Claim 2
Dependent Claim
199 words
A CONTROL SYSTEM FOR APPARATUS FOR TREATING WORK PROGRESSIVELY IN A PLURALITY OF POSITIONS, SAID APPARATUS INCLUDING MEANS AT EACH OF SAID POSITIONS FOR TREATING SAID WORK AND DRIVE MEANS CONNECTED TO EACH OF SAID TREATING MEANS FOR ACTUATING SAID TREATING MEANS, THE SAID CONTROL SYSTEM INCLUDING POSITION REGULATING MEANS CONNECTED TO EACH OF SAID DRIVE MEANS FOR ADJUSTING THE POSITION OF THE ASSOCIATED DRIVE MEANS, MEANS CONNECTED TO EACH OF SAID DRIVE MEANS FOR DERIVING A SIGNAL DEPENDENT ON THE POSITION OF THE ASSOCIATED DRIVE MEANS, MEANS CONNECTED TO SAID SIGNAL DERIVING MEANS OF ALL OF SAID DRIVE MEANS FOR DERIVING A SIGNAL CORRESPONDING TO THE AVERAGE OF THE POSITION DEPENDENT SIGNALS OF ALL OF SAID DRIVE MEANS, MEANS CONNECTED TO EACH OF SAID POSITION DEPENDENT SIGNAL DERIVING MEANS AND TO SAID AVERAGE SIGNAL DERIVING MEANS FOR DERIVING FOR EACH DRIVE MEANS A SIGNAL DEPENDENT ON THE ALGEBRAIC DIFFERENCE BETWEEN SAID AVERAGE SIGNAL AND THE POSITION DEPENDENT SIGNAL FOR THE ASSOCIATED DRIVE MEANS, AND MEANS CONNECTED TO EACH OF SAID REGULATING MEANS AND TO ASSOCIATED DIFFERENCE SIGNAL DERIVING MEANS FOR CAUSING SAID REGULATING MEANS TO SET THE ASSOCIATED DRIVE MEANS TO THE POSITION CORRESPONDING TO SAID AVERAGE SIGNAL.
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |