US3727712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling arrangement
Assignee: SIMPLICITY MANUFACTURING COMPANY PORT WASHINGTON WI A CORP OF WI
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Filing: 1971-11-11
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Granted: 1973-04-17
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Expires: 1991-11-11
Abstract
Abstract This invention is concerned with a cooling system for a tractor having an air-cooled engine and having a hydraulic fluid transmission. This system includes having a hydraulic fluid radiator through which cooling air is drawn before passing same over the engine for cooling same and wherein such radiator can be pivoted about the longitudinal axis of such tractor to provide ready access to mechanism underlying such radiator and also presenting such radiator to a position where it can be readily cleaned.
Inventors
- 👤 M Colloton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:32
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/06; Y; Y10; Y10S; Y10S165/00; Y10S165/916
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
151 words
In combination, a hydraulically driven tractor having a longitudinally extending main frame, an air-cooled engine mounted on the forward end of said frame, a semicircular radiator carried by said frame and having radially extending air passages to provide cooling for said radiator, a fluid pump carried by said frame for moving hydraulic fluid through said radiator, a hydraulic motor operatively connected to said tractor for driving same, said hydraulic motor being drivenly connected to said pump so that said motor is driven by said hydraulic fluid, said pump being driven by said air-cooled engine, a fan driven by said engine and being positioned longitudinally between said radiator and said engine, a cowling carried by said frame and positioned about said fan for directing air passing radially through said radiator to said fan entrance and longitudinally forwardly over said engine to a point of discharge at the forward end of said tractor.
Claim 2
Dependent Claim
151 words
In combination, a hydraulically driven tractor having a longitudinally extending main frame, an air-cooled engine mounted on the forward end of said frame, a semicircular radiator carried by said frame and having radially extending air passages to provide cooling for said radiator, a fluid pump carried by said frame for moving hydraulic fluid through said radiator, a hydraulic motor operatively connected to said tractor for driving same, said hydraulic motor being drivenly connected to said pump so that said motor is driven by said hydraulic fluid, said pump being driven by said air-cooled engine, a fan driven by said engine and being positioned longitudinally between said radiator and said engine, a cowling carried by said frame and positioned about said fan for directing air passing radially through said radiator to said fan entrance and longitudinally forwardly over said engine to a point of discharge at the forward end of said tractor.
Claim 3
Dependent Claim
43 words
In the combination recited in claim 1 and wherein said semicircular radiator is pivotally mounted on said frame so that said radiator may be pivoted outwardly about one end portion thereof to provide access to mechanism underlying said radiator and to said radiator.
Claim 4
Dependent Claim
25 words
In the combination recited in claim 2 and wherein said radiator is provided with said pivotal mounting being provided by means of a rubber hose.
Claim 5
Dependent Claim
43 words
In the combination recited in claim 3 and wherein said radiator comprises a fluid conduit starting at one end thereof and continuing to the other end and returning to the first end, a plurality of fins attached to said conduit for dissipating heat.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |