Patent US1258459A successfully refreshed from Google Patents.
Patent US3120219A successfully refreshed from Google Patents.
US3120219A
Expired / Lapsed
US
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Fan drive arrangement
Assignee: Daimler Benz AG
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Filing: 1960-05-19
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Granted: 1964-02-04
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Expires: 1980-05-19
Abstract
No abstract record available.
Inventors
- 👤 Friedrich K H Nallinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:47
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/02; F01P7/04; F01P7/042; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/1816
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A FAN DRIVE FOR THE COOLING SYSTEM OF AN INTERNAL COMBUSTION ENGINE, ESPECIALLY IN MOTOR VEHICLES, COMPRISING FAN MEANS, AND MEANS DRIVINGLY CONNECTING SAID FAN MEANS WITH SAID INTERNAL COMBUSTION ENGINE INCLUDING AUTOMATICALLY ENGAGEABLE AND DISENGAGEABLE SHIFTING CLUTCH MEANS AND SLIP CLUTCH MEANS OPERATIVELY CONNECTED IN SERIES WITH SAID SHIFTING CLUTCH MEANS BETWEEN SAID ENGINE AND SAID FAN MEANS FOR AUTOMATICALLY LIMITING THE ROTATIONAL SPEED OF SAID FAN MEANS TO A PREDETERMINED MAXIMUM VALUE, EACH OF SAID CLUTCH MEANS HAVING A DRIVING PART AND A DRIVEN PART, THE DRIVING PART OF SAID SHIFTING CLUTCH MEANS BEING OPERATIVELY CONNECTED TO SAID INTERNAL COMBUSTION ENGINE, THE DRIVENPART OF SAID SHIFTING CLUTCH MEANS BEING OPERATIVELY CONNECTED WITH THE DRIVING PART OF SAID SLIP CLUTCH MEANS, AND THE DRIVEN PART OF SAID SLIP CLUTCH MEANS BEING OPERATIVELY CONNECTED WITH SAID FAN MEANS.
Claim 2
Dependent Claim
138 words
A FAN DRIVE FOR THE COOLING SYSTEM OF AN INTERNAL COMBUSTION ENGINE, ESPECIALLY IN MOTOR VEHICLES, COMPRISING FAN MEANS, AND MEANS DRIVINGLY CONNECTING SAID FAN MEANS WITH SAID INTERNAL COMBUSTION ENGINE INCLUDING AUTOMATICALLY ENGAGEABLE AND DISENGAGEABLE SHIFTING CLUTCH MEANS AND SLIP CLUTCH MEANS OPERATIVELY CONNECTED IN SERIES WITH SAID SHIFTING CLUTCH MEANS BETWEEN SAID ENGINE AND SAID FAN MEANS FOR AUTOMATICALLY LIMITING THE ROTATIONAL SPEED OF SAID FAN MEANS TO A PREDETERMINED MAXIMUM VALUE, EACH OF SAID CLUTCH MEANS HAVING A DRIVING PART AND A DRIVEN PART, THE DRIVING PART OF SAID SHIFTING CLUTCH MEANS BEING OPERATIVELY CONNECTED TO SAID INTERNAL COMBUSTION ENGINE, THE DRIVENPART OF SAID SHIFTING CLUTCH MEANS BEING OPERATIVELY CONNECTED WITH THE DRIVING PART OF SAID SLIP CLUTCH MEANS, AND THE DRIVEN PART OF SAID SLIP CLUTCH MEANS BEING OPERATIVELY CONNECTED WITH SAID FAN MEANS.
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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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |