US3229796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable constant speed magnetic clutch
Assignee: General Electric Co
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Filing: 1964-07-10
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Granted: 1966-01-18
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Worst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:29
CPC Classifications
F; F16; F16D; F16D43/00; F16D27/00; F16D27/10; F16D27/108; F16D27/112; F16D48/00; F16D48/06; F16D48/064; F16D2027/002; F16D2027/008; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1021; F16D2500/1022; F16D2500/70; F16D2500/704; F16D2500/70402; F16D2500/70418; F16D2500/70422; F16D2500/70432; F16D2500/70436; F16D2500/70438; F16D2500/70442
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN ELECTROMAGNETIC CLUCTH INCLUDING: (A) A ROTARY DRIVING STRUCTURE, (B) A ROTARY DRIVEN STRUCTURE MOUNTED ADJACENT SAID DRIVING STRUCTURE, (C) AN ELECTRICAL WINDING ARRANGED TO INDUCE A MAGNETIC FIELD IN SAID DRIVING STRUCTURE AND SAID DRIVEN STRUCTURE TO OPERATIVELY CONNECT SAID DRIVING STRUCTURE AND SAID DRIVEN STRUCTURE, (D) A PLURALITY OF SLIP RINGS, (E) A PLURALITY OF BRUSHES SLIDINGLY MOUNTED ON SAID DRIVEN STRUCTURE FOR COOPERATION WITH SAID SLIP RINGS, (F) EACH OF SAID BRUSHES BEING A DIFFERENT MASS THAN ANY OTHER OF SAID BRUSHES SO THAT CENTRIFUGAL FORCE DURING ROTATION OF SAID DRIVEN STRUCTURE CAUSES EACH OF SAID BRUSHES TO SEPARATE FROM ITS CORRESPONDING SLIP RINGS AT A DIFFERENT SPEED THAN ANY OTHER OF SAID BRUSHES, (G) A CIRCUIT, INCLUDING SAID SLIP RINGS, FOR PROVIDING ELECTRIC ENERGY TO SAID ELECTRIC WINDING, AND (H) A SWITCH IN SAID CIRCUIT FOR SELECTIVELY CONNECTING ANY ONE OF SAID BRUSHES IN SAID CIRCUIT FOR CAUSING SAID DRIVEN MEMBER TO BE ROTATED AT ANY ONE OF A PLURALITY OF PREDETERMINED SPEEDS.
Claim 2
Dependent Claim
167 words
AN ELECTROMAGNETIC CLUCTH INCLUDING: (A) A ROTARY DRIVING STRUCTURE, (B) A ROTARY DRIVEN STRUCTURE MOUNTED ADJACENT SAID DRIVING STRUCTURE, (C) AN ELECTRICAL WINDING ARRANGED TO INDUCE A MAGNETIC FIELD IN SAID DRIVING STRUCTURE AND SAID DRIVEN STRUCTURE TO OPERATIVELY CONNECT SAID DRIVING STRUCTURE AND SAID DRIVEN STRUCTURE, (D) A PLURALITY OF SLIP RINGS, (E) A PLURALITY OF BRUSHES SLIDINGLY MOUNTED ON SAID DRIVEN STRUCTURE FOR COOPERATION WITH SAID SLIP RINGS, (F) EACH OF SAID BRUSHES BEING A DIFFERENT MASS THAN ANY OTHER OF SAID BRUSHES SO THAT CENTRIFUGAL FORCE DURING ROTATION OF SAID DRIVEN STRUCTURE CAUSES EACH OF SAID BRUSHES TO SEPARATE FROM ITS CORRESPONDING SLIP RINGS AT A DIFFERENT SPEED THAN ANY OTHER OF SAID BRUSHES, (G) A CIRCUIT, INCLUDING SAID SLIP RINGS, FOR PROVIDING ELECTRIC ENERGY TO SAID ELECTRIC WINDING, AND (H) A SWITCH IN SAID CIRCUIT FOR SELECTIVELY CONNECTING ANY ONE OF SAID BRUSHES IN SAID CIRCUIT FOR CAUSING SAID DRIVEN MEMBER TO BE ROTATED AT ANY ONE OF A PLURALITY OF PREDETERMINED SPEEDS.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |