US3268047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning control
Assignee: Eaton Corp
•
Filing: 1964-07-22
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Granted: 1966-08-23
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 James W Grygera
- 👤 Aubrey H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:31
CPC Classifications
B; B23; B23Q; B23Q15/00; B23Q15/20; B23Q15/22; B23Q15/26; B30; B30B; B30B15/00; B30B15/14; B30B15/144
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A CONTROL FOR STOPPING, AT A PREDETERMINED POSITION, A ROTATABLE MEMBER DRIVEN BY A DRIVING MEMBER THROUGH AN ELECTRIC CLUTCH AND BRAKED BY AN ELECTRIC BRAKE; SAID CONTROL COMPRISING: MEANS FOR ACTUATING SAID CLUTCH TO ROTATE SAID DRIVEN MEMBER; MEANS FOR ACTUATING SAID BRAKE TO BRAKE ROTATION OF SAID DRIVEN MEMBER; A CIRCUIT INCLUDING A SWITCH HAVING A FIRST POSITION IN WHICH THE CIRCUIT ENERGIZES THE CLUTCH ACTUATING MEANS THEREBY TO ROTATE SAID DRIVEN MEMBER AT A DESIRED SPEED, SAID SWITCH HAVING A SECOND POSITION IN WHICH THE BRAKE ACTUATING MEANS IS ENERGIZED BY SAID CIRCUIT TO BRAKE THE DRIVEN MEMBER, SAID CIRCUIT FURTHER INCLUDING MEANS TO DEENERGIZE THE BRAKE ACTUATING MEANS AFTER A PREDETERMINED TIME INTERVAL AND MEANS OPERATIVE AFTER SAID INTERVAL FOR ALTERNATELY AND REPETITIVELY ENERGIZING SAID BRAKE AND CLUTCH ACTUATING MEANS THEREBY TO ROTATE SAID DRIVEN MEMBER AT A REDUCED SPEED; AND MEANS CONNECTED IN SAID CIRCUIT FOR SENSING A PREDETERMINED POSITION OF SAID DRIVEN MEMBER AND ENERGIZING SAID BRAKE ACTUATING MEANS WHEREBY THE DRIVEN MEMBER IS BROUGHT TO A STOP AT SAID PREDETERMINED POSITION.
Claim 2
Dependent Claim
178 words
A CONTROL FOR STOPPING, AT A PREDETERMINED POSITION, A ROTATABLE MEMBER DRIVEN BY A DRIVING MEMBER THROUGH AN ELECTRIC CLUTCH AND BRAKED BY AN ELECTRIC BRAKE; SAID CONTROL COMPRISING: MEANS FOR ACTUATING SAID CLUTCH TO ROTATE SAID DRIVEN MEMBER; MEANS FOR ACTUATING SAID BRAKE TO BRAKE ROTATION OF SAID DRIVEN MEMBER; A CIRCUIT INCLUDING A SWITCH HAVING A FIRST POSITION IN WHICH THE CIRCUIT ENERGIZES THE CLUTCH ACTUATING MEANS THEREBY TO ROTATE SAID DRIVEN MEMBER AT A DESIRED SPEED, SAID SWITCH HAVING A SECOND POSITION IN WHICH THE BRAKE ACTUATING MEANS IS ENERGIZED BY SAID CIRCUIT TO BRAKE THE DRIVEN MEMBER, SAID CIRCUIT FURTHER INCLUDING MEANS TO DEENERGIZE THE BRAKE ACTUATING MEANS AFTER A PREDETERMINED TIME INTERVAL AND MEANS OPERATIVE AFTER SAID INTERVAL FOR ALTERNATELY AND REPETITIVELY ENERGIZING SAID BRAKE AND CLUTCH ACTUATING MEANS THEREBY TO ROTATE SAID DRIVEN MEMBER AT A REDUCED SPEED; AND MEANS CONNECTED IN SAID CIRCUIT FOR SENSING A PREDETERMINED POSITION OF SAID DRIVEN MEMBER AND ENERGIZING SAID BRAKE ACTUATING MEANS WHEREBY THE DRIVEN MEMBER IS BROUGHT TO A STOP AT SAID PREDETERMINED POSITION.
References Cited (Backward Citations)
US3160128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |