Patent US3250341A successfully refreshed from Google Patents.
US3250341A
Expired / Lapsed
US
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System for controlling a magnetic fluid clutch and generator of a motor vehicle transmission
Assignee: Suzuki Motor Corp
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Filing: 1961-08-31
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Granted: 1966-05-10
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Expires: 1981-08-31
Abstract
No abstract record available.
Inventors
- 👤 Takahashi Satoru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:31
CPC Classifications
F; F16; F16D; F16D37/00; F16D37/02; F16D2037/001; F16D2037/002
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
222 words
A CLUTCH CONTROL SYSTEM FOR A VEHICLE COMPRISING: AN ENGINE; A DIRECT CURRENT GENERATOR DRIVEN BY SAID ENGINE, SAID GENERATOR INCLUDING AN ARMATURE WINDING AN A SHUNT FIELD WINDING; CLUTCH MEAN COMPRISING A DRIVING CLUTCH MEMBER CONNECTED TO BE DRIVEN BY SAID ENGINE AND A DRIVEN CLUTCH MEMBER CONNECTED TO DRIVE A WHEEL OF SAID VEHICLE; ELECTROMAGNETIC MEANS INCLUDING AN EXCITING WINDING FOR PRODUCING PROGRESSIVELY INCREASING TORQUE TRANSMISSION FROM SAID DRIVING MEMBER TO SAID DRIVEN MEMBER ACCOMPANYING PROGRESSIVELY INCREASING DIRECT CURRENT FLOW THROUGH SAID EXCITING WINDING; ELECTROMAGNETIC VIBRATOR MEANS COMPRISING A MOVABLE CONTACT AND FIRST AND SECOND STATIONARY CONTACTS SELECTIVELY ENGAGEABLE BY SAID MOVABLE CONTACT, SAID VIBRATOR MEANS COMPRISING AN OPERATING WINDING CONNECTED ACROSS SAID ARMATURE WINDING, SAID MOVABLE CONTACT BEING YIELDINGLY URGED INTO ENGAGEMENT WITH SAID FIRST CONTACT AND AWAY FROM SAID SECOND CONTACT WITH SAID OPERATING WINDING DEENERGIZED, SAID MOVABLE CONTACT BEING DISENGAGEABLE FROM SAID FIRST CONTACT WHEN A PREDETERMINED MINIMUM ENERGIZING POTENTIAL IS APPLIED TO SAID OPERATING WINDING AND ENGAGEABLE WITH SAID SECOND CONTACT WHEN A POTENTIAL EXCEEDINGS SAID MINIMUM POTENTIAL IS APPLIED TO SAID OPERATING WINDING; CIRCUIT MEANS CONNECTED SAID EXCITING WINDING BETWEEN SAID MOVABLE CONTACT AND SAID FIRST CONTACT; AND FURTHER CIRCUITS MEANS CONNECTING SAID SHUNT FIELD WINDING BETWEEN SAID MOVABLE CONTACT AND SAID SECOND CONTACT, SAID FIRST AND SECOND CONTACTS BEING CONNECTED ACROSS SAID ARMATURE WINDING.
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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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |