US4257554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fan assembly
Assignee: FLEX A LITE PRODUCTS CORP
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Filing: 1978-11-20
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Granted: 1981-03-24
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Expires: 1998-11-20
Abstract
Abstract This invention is directed to a fan assembly for use with temperature exchange units and heat exchange units such as a radiator, a heater, an oil cooler, etc. Most automotive vehicles are powered by an internal combustion engine having water, oil and other fluids to be cooled. And, most of the internal combustion engines are associated with a radiator or a heat exchanger unit for cooling fluid in the engine, transmission or other oils and hydraulic fluids. An automotive vehicle operating at a low speed usually requires a fan to assist the radiator or heat exchanger unit in cooling the cooling fluids. However, at higher ram air speed a fan is not normally required to assist the radiator or heat exchanger in cooling the cooling fluids as there is sufficient cooling due to the natural passage of air over the cooling surfaces of the heat exchange units. This invention is directed to a fan assembly which can be used in vehicles having a requirement to dissipate excess heat and a radiator or heat exchanger unit with which a fan assembly can be operated when the automotive vehicle is traveling at a low speed and which fan assembly ceases to operate when the automotive vehicle fluids are sufficiently cooled at a relatively high speed.
Inventors
- 👤 Rainer O. Willingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:04
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/001; F28F9/002; F01; F01P; F01P5/00; F01P5/02; F01P5/04; F01P7/00; F01P7/02; F01P7/08; F01P2070/00; F01P2070/50; F02; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
279 words
A fan assembly comprising: a. a motor having a rotating shaft; b. a fan having a first means for attaching said fan to said shaft; c. a second means for mounting said motor and said fan on a heat exchanger; d. said heat exchanger comprising a combination of tubes and fins, operatively, connecting with each other; e. said second means, operatively, connecting with and mounted on said combination of tubes and fins so that the combination supports said second means; f. a third means in response to temperature for controlling the operation of the motor and the rotating shaft and the fan; g. said second means comprising a mounting bracket; h. a means for securing said mounting bracket to the combination of tubes and fins of said heat exchanger associated with a source of fluid; i. a means for allowing fluid to flow between said heat exchanger and said source of fluid; j. said motor being an electric motor; k. said third means, in response to the temperature of said fluid, controlling the operation of said motor sand fan; l. said motor connecting with a source of electricity; m. said mounting bracket comprising an integral support unit and mounting pads; n. said integral support unit comprising two spaced apart bases; o. said two spaced apart bases and said mounting pads co-fitting with each other with said integral support unit on one side of said heat exchanger and said mounting pads on the other side of said heat exchanger; p. means connecting said bases and said mounting pads to attach said mounting bracket to said radiator; and q. means for attaching and mounting said motor on said integral support unit.
Claim 2
Dependent Claim
279 words
A fan assembly comprising: a. a motor having a rotating shaft; b. a fan having a first means for attaching said fan to said shaft; c. a second means for mounting said motor and said fan on a heat exchanger; d. said heat exchanger comprising a combination of tubes and fins, operatively, connecting with each other; e. said second means, operatively, connecting with and mounted on said combination of tubes and fins so that the combination supports said second means; f. a third means in response to temperature for controlling the operation of the motor and the rotating shaft and the fan; g. said second means comprising a mounting bracket; h. a means for securing said mounting bracket to the combination of tubes and fins of said heat exchanger associated with a source of fluid; i. a means for allowing fluid to flow between said heat exchanger and said source of fluid; j. said motor being an electric motor; k. said third means, in response to the temperature of said fluid, controlling the operation of said motor sand fan; l. said motor connecting with a source of electricity; m. said mounting bracket comprising an integral support unit and mounting pads; n. said integral support unit comprising two spaced apart bases; o. said two spaced apart bases and said mounting pads co-fitting with each other with said integral support unit on one side of said heat exchanger and said mounting pads on the other side of said heat exchanger; p. means connecting said bases and said mounting pads to attach said mounting bracket to said radiator; and q. means for attaching and mounting said motor on said integral support unit.
Claim 3
Dependent Claim
360 words
A combination of a heat exchanger and a fan assembly: a. said fan assembly comprising a motor having a rotating shaft; b. a fan having a first means for attaching said fan to said shaft; c. a second means for connecting said fan assembly with said heat exchanger and for supporting said motor and said fan on said shaft; d. said heat exchanger comprising a combination of tubes and fins, operatively, connecting with each other; e. said second means, operatively connecting with and mounted on said combination of tubes and fins so that the combination supports said second means; f. a third means in response to temperature for controlling the operation of the motor and the rotating shaft and the fan; g. said second means comprising a mounting bracket; h. a means for securing said mounting bracket to the combination of tubes and fins of said heat exchanger associated with a source of fluid; i. a means for allowing fluid to flow between said heat exchanger and said source of fluid for the purpose to change the temperature of said fluid; j. said motor being an electric motor; k. said third means, in response to the temperature of said fluid controlling the operation of said motor and said fan; l. said motor connecting with a source of electricity; m. said motor connecting with a source of electricity; n. said mounting bracket comprising an integral support unit and mounting pads; o. said integral support unit comprising two spaced apart bases and a support rib connecting said two spaced apart bases; p. said two spaced apart bases and said mounting pads co-fitting with each other and with said integral support unit on one side of the combination of tubes and fins of said heat exchanger and said mounting pads on the other side of the combination of tubes and fins of said heat exchanger; q. means connecting said bases and said mounting pads to attach each mounting bracket to said heat exchanger; r. said means connecting said bases and said adjacent to said combinations of tubes and fins; and s. means for attaching and mounting said motor on said integral support unit.
Claim 4
Dependent Claim
360 words
A combination of a heat exchanger and a fan assembly: a. said fan assembly comprising a motor having a rotating shaft; b. a fan having a first means for attaching said fan to said shaft; c. a second means for connecting said fan assembly with said heat exchanger and for supporting said motor and said fan on said shaft; d. said heat exchanger comprising a combination of tubes and fins, operatively, connecting with each other; e. said second means, operatively connecting with and mounted on said combination of tubes and fins so that the combination supports said second means; f. a third means in response to temperature for controlling the operation of the motor and the rotating shaft and the fan; g. said second means comprising a mounting bracket; h. a means for securing said mounting bracket to the combination of tubes and fins of said heat exchanger associated with a source of fluid; i. a means for allowing fluid to flow between said heat exchanger and said source of fluid for the purpose to change the temperature of said fluid; j. said motor being an electric motor; k. said third means, in response to the temperature of said fluid controlling the operation of said motor and said fan; l. said motor connecting with a source of electricity; m. said motor connecting with a source of electricity; n. said mounting bracket comprising an integral support unit and mounting pads; o. said integral support unit comprising two spaced apart bases and a support rib connecting said two spaced apart bases; p. said two spaced apart bases and said mounting pads co-fitting with each other and with said integral support unit on one side of the combination of tubes and fins of said heat exchanger and said mounting pads on the other side of the combination of tubes and fins of said heat exchanger; q. means connecting said bases and said mounting pads to attach each mounting bracket to said heat exchanger; r. said means connecting said bases and said adjacent to said combinations of tubes and fins; and s. means for attaching and mounting said motor on said integral support unit.
Claim 5
Dependent Claim
24 words
A fan assembly according to claims 1 or 2, and comprising: a. said source of fluid being an automatic transmission in an automotive vehicle.
Claim 6
Dependent Claim
24 words
A fan assembly according to claims 1 or 2, and comprising: a. said source of fluid being an air conditioner in an automotive vehicle.
Claim 7
Dependent Claim
23 words
A fan assembly according to claims 1 or 2, and comprising: a. said source of fluid being a differential in an automotive vehicle.
Claim 8
Dependent Claim
25 words
A fan assembly according to claims 1 or 2, and comprising: a. said source of fluid being an internal combustion engine in an automotive vehicle.
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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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |