US3231695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed responsive safety control
Assignee: Individual
•
Filing: 1962-04-04
•
Granted: 1966-01-25
•
Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 Greenhut Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:13
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/06; H01H35/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A SPEED-RESPONSIVE SAFETY CONTROL COMPRISING: A DRVIEN ROTARY ELEMENT WHOSE SPEED VARIATION IS TO BE SENSED, A ROTARY REFERENCE SPEED ELEMENT CORRELATED TO THE DESIRED SPEED RANGE OF THE DRIVEN ROTARY ELEMENT, A PLANETARY RUDUCTION MECHANSIM INTERCONNECTING SAID ELEMENTS IN SPEED SENSING RELATIONSHIP, A CONSTANT SPEED SYNCHRONOUS ELECTRICAL MOTRO, INDEPENDENT OF SAID DRIVEN ELEMENT, DRIVING SAID REFERENCE SPEED ELEMENT, SAID MOTOR BEING CHARACTERIZED BY THE ABILITY TO BE STALLED UNDER OVERLOAD WITHOUT INJURY TO SAID MOTOR OR TO SAID ELEMENTS AND MECHANISM, A CLUTCH MECHANISM RESPONSIVE SOLELY TO ROTATION IN ONE DIRECTION, A SWITCH-ACTUATING ELEMENT OPERA-
Claim 2
Dependent Claim
96 words
A SPEED-RESPONSIVE SAFETY CONTROL COMPRISING: A DRVIEN ROTARY ELEMENT WHOSE SPEED VARIATION IS TO BE SENSED, A ROTARY REFERENCE SPEED ELEMENT CORRELATED TO THE DESIRED SPEED RANGE OF THE DRIVEN ROTARY ELEMENT, A PLANETARY RUDUCTION MECHANSIM INTERCONNECTING SAID ELEMENTS IN SPEED SENSING RELATIONSHIP, A CONSTANT SPEED SYNCHRONOUS ELECTRICAL MOTRO, INDEPENDENT OF SAID DRIVEN ELEMENT, DRIVING SAID REFERENCE SPEED ELEMENT, SAID MOTOR BEING CHARACTERIZED BY THE ABILITY TO BE STALLED UNDER OVERLOAD WITHOUT INJURY TO SAID MOTOR OR TO SAID ELEMENTS AND MECHANISM, A CLUTCH MECHANISM RESPONSIVE SOLELY TO ROTATION IN ONE DIRECTION, A SWITCH-ACTUATING ELEMENT OPERA-
References Cited (Backward Citations)
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |