Patent US3187223A successfully refreshed from Google Patents.
US3187223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating system chiefly for rotary power units
Assignee: Mitsubishi Chemical Advanced Materials AG
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Filing: 1960-12-19
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Granted: 1965-06-01
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Expires: 1980-12-19
Abstract
No abstract record available.
Inventors
- 👤 Raeber Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:22
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A SPEED REGULATING SYSTEM FOR A ROTARY FLUID-OPERATED POWER SYSTEM COMPRISING, IN COMBINATION, (1) MEANS FOR PRODUCING AN INPUT SIGNAL DEPENDING ON THE VALUE OF THE INPUT SPEED, SAID INPUT SIGNAL PRODUCING MEANS BEING RESPONSIVE TO SAID INPUT SPEED, (2) MEANS FOR PRODUCING AN ADJUSTABLE REFERENCE SIGNAL, (3) MEANS FOR FORMING A DIFFERENTIAL SIGNAL CORRESPONDING TO THE DIFFERENCE BETWEEN SAID INPUT SIGNAL FORMED BY SAID INPUT SIGNAL PRODUCING MEANS AND SAID ADJUSTABLE REFERENCE SIGNAL, (4) MEANS FOR PRODUCING AN OUTPUT SIGNAL DEPENDING ON THE VALUE OF SAID DIFFERENTIAL SIGNAL BEYOND A PREDETERMINED VALUE, SAID OUTPUT SIGNAL PRODUCING MEANS BEING RESPONSIVE TO SAID DIFFERENTIAL SIGNAL WHENEVER SAID DIFFERENTIAL SIGNAL ABSOLUTE VALUE IS HIGHER THAN SAID PREDETERMINED VALUE, AND (5) MEANS FOR CONTROLLING SAID INPUT SPEED, SAID INPUT SPEED CONTROL MEANS BEING CONTROLLED BY SAID OUTPUT SIGNAL.
Claim 2
Dependent Claim
135 words
A SPEED REGULATING SYSTEM FOR A ROTARY FLUID-OPERATED POWER SYSTEM COMPRISING, IN COMBINATION, (1) MEANS FOR PRODUCING AN INPUT SIGNAL DEPENDING ON THE VALUE OF THE INPUT SPEED, SAID INPUT SIGNAL PRODUCING MEANS BEING RESPONSIVE TO SAID INPUT SPEED, (2) MEANS FOR PRODUCING AN ADJUSTABLE REFERENCE SIGNAL, (3) MEANS FOR FORMING A DIFFERENTIAL SIGNAL CORRESPONDING TO THE DIFFERENCE BETWEEN SAID INPUT SIGNAL FORMED BY SAID INPUT SIGNAL PRODUCING MEANS AND SAID ADJUSTABLE REFERENCE SIGNAL, (4) MEANS FOR PRODUCING AN OUTPUT SIGNAL DEPENDING ON THE VALUE OF SAID DIFFERENTIAL SIGNAL BEYOND A PREDETERMINED VALUE, SAID OUTPUT SIGNAL PRODUCING MEANS BEING RESPONSIVE TO SAID DIFFERENTIAL SIGNAL WHENEVER SAID DIFFERENTIAL SIGNAL ABSOLUTE VALUE IS HIGHER THAN SAID PREDETERMINED VALUE, AND (5) MEANS FOR CONTROLLING SAID INPUT SPEED, SAID INPUT SPEED CONTROL MEANS BEING CONTROLLED BY SAID OUTPUT SIGNAL.
References Cited (Backward Citations)
US2775724A
Cited
US2829662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |