US3202144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan reversing
Assignee: International Motors LLC
•
Filing: 1963-05-17
•
Granted: 1965-08-24
•
Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Nicholson
- 👤 Grant W Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:59
CPC Classifications
F; F01; F01P; F01P5/00; F01P5/02; F01P5/04; F01P5/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
IN COMBINATION WITH A MACHINE HAVING AN INTERNAL COMBUSTION ENGINE INCLUDING A RADIATOR, AN ARM PIVOTALLY MOUNTED ON SAID MALLCHINE, A DRIVEN SHAFT ROTATABLY MOUNTED ON SAID ARM, A FAN SECURED TO SAID DRIVEN SHAFT FOR ROTATION THEREWITH CONTIGUOUS OF SAID RADIATOR, A COUNTERSHAFT ROTATABLY MOUNTED ON SAID MACHINE, MEANS INTERCONNECTING SAID ENGINE AND SAID COUNTERSHAFT FOR ROTATING SAID COUNTERSHAFT, A PAIR OF PULLEYS SECURED TO SAID SHAFTS FOR ROTATION THEREWITH, A BELT ENGAGEABLE WITH SAID PULLEYS FOR ROTATING SAID DRIVEN SHAFT AND SAID FAN IN A FORWARD DIRECTION SO AS TO DRAW AIR THROUGH SAID RADIATOR, A PAIR OF FRICTION WHEELS SECURED TO SAID SHAFT FOR ROTATION THEREWITH, SAID FRICTION WHEELS BEING ENGAGEABLE FOR ROTATING SAID DRIVEN SHAFT AND SAID FAN IN A REVERSE DIRECTION SO AS TO BLOW AIR THROUGH SAID RADIATOR FASTER THAN AIR IS DRAWN THROUGH SAID RADIATOR, ONE OF SAID FRICTION WHEELS HAVING A RELATIVELYY HARD SURFACE DEFINING A PLURALITY OF GROOVES AND THE OTHER OF SAID FRICTION WHEELS HAVING A RELATIVELY SOFT SURFACE ENGAGEABLE WITH SAID GROOVES FOR FORMATION OF A PLURALITY OF COOPERATING GROOVES IN SAID RELATIVELY SOFT SURFACE UPON ENGAGEMENT OF SAID FRICTION WHEELS, AND MEANS FOR PIVOTING SAID ARM BETWEEN A FIRST POSITION ENGAGING SAID BELT WITH SAID PULLEYS AND A SECOND POSITION ENGAGING SAID FRICTION WHEELS.
Claim 2
Dependent Claim
216 words
IN COMBINATION WITH A MACHINE HAVING AN INTERNAL COMBUSTION ENGINE INCLUDING A RADIATOR, AN ARM PIVOTALLY MOUNTED ON SAID MALLCHINE, A DRIVEN SHAFT ROTATABLY MOUNTED ON SAID ARM, A FAN SECURED TO SAID DRIVEN SHAFT FOR ROTATION THEREWITH CONTIGUOUS OF SAID RADIATOR, A COUNTERSHAFT ROTATABLY MOUNTED ON SAID MACHINE, MEANS INTERCONNECTING SAID ENGINE AND SAID COUNTERSHAFT FOR ROTATING SAID COUNTERSHAFT, A PAIR OF PULLEYS SECURED TO SAID SHAFTS FOR ROTATION THEREWITH, A BELT ENGAGEABLE WITH SAID PULLEYS FOR ROTATING SAID DRIVEN SHAFT AND SAID FAN IN A FORWARD DIRECTION SO AS TO DRAW AIR THROUGH SAID RADIATOR, A PAIR OF FRICTION WHEELS SECURED TO SAID SHAFT FOR ROTATION THEREWITH, SAID FRICTION WHEELS BEING ENGAGEABLE FOR ROTATING SAID DRIVEN SHAFT AND SAID FAN IN A REVERSE DIRECTION SO AS TO BLOW AIR THROUGH SAID RADIATOR FASTER THAN AIR IS DRAWN THROUGH SAID RADIATOR, ONE OF SAID FRICTION WHEELS HAVING A RELATIVELYY HARD SURFACE DEFINING A PLURALITY OF GROOVES AND THE OTHER OF SAID FRICTION WHEELS HAVING A RELATIVELY SOFT SURFACE ENGAGEABLE WITH SAID GROOVES FOR FORMATION OF A PLURALITY OF COOPERATING GROOVES IN SAID RELATIVELY SOFT SURFACE UPON ENGAGEMENT OF SAID FRICTION WHEELS, AND MEANS FOR PIVOTING SAID ARM BETWEEN A FIRST POSITION ENGAGING SAID BELT WITH SAID PULLEYS AND A SECOND POSITION ENGAGING SAID FRICTION WHEELS.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |