US3789684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooled shuttle clutch transmission
Assignee: SIMPLICITY MANUFACTURING COMPANY PORT WASHINGTON WI A CORP OF WI
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Filing: 1972-11-07
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Granted: 1974-02-05
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Expires: 1992-11-07
Abstract
Abstract A cooling arrangement for a V-belt clutching and reversing transmission including a central pulley section flanked by pulleys on either side and wherein said flanking pulleys are provided with fan elements for moving air axially towards said central pulley section and the latter is provided with ribs for moving such air radially outward toward the periphery of said central pulley section for cooling such central pulley section, such flanking pulleys and the V-belts connected therewith.
Inventors
- 👤 E Freier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:13
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/67; A01D34/68; A01D34/6806; F; F16; F16H; F16H57/00; F16H57/04; F16H57/0412; A01D2101/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
In a V-belt transmission and reversing mechanism having a pair of spaced apart pulleys mounted on a shaft, a central halfpulley section attached to said shaft between said pulleys and closely adjacent to each of said pulleys, each of said pair of pulleys being provided with a half-pulley section coacting with said central half-pulley section to provide a pulley for receiving a V-belt positionable for drivenly connecting said central half-pulley section to one of said pair of pulleys, the improvement comprising heat dissipating means for said mechanism and wherein each of said pair of pulleys is provided with a fan blade incorporated in the webs thereof for moving air axially toward said central half-pulley section, and said central halfpulley section is provided with a solid web for intercepting the axially moving air and said solid web is provided with radially extending blades for changing the direction of the axially moving air to a radial outward direction toward said belt and the outer surfaces of said pulleys and said central half-pulley section.
Claim 2
Dependent Claim
171 words
In a V-belt transmission and reversing mechanism having a pair of spaced apart pulleys mounted on a shaft, a central halfpulley section attached to said shaft between said pulleys and closely adjacent to each of said pulleys, each of said pair of pulleys being provided with a half-pulley section coacting with said central half-pulley section to provide a pulley for receiving a V-belt positionable for drivenly connecting said central half-pulley section to one of said pair of pulleys, the improvement comprising heat dissipating means for said mechanism and wherein each of said pair of pulleys is provided with a fan blade incorporated in the webs thereof for moving air axially toward said central half-pulley section, and said central halfpulley section is provided with a solid web for intercepting the axially moving air and said solid web is provided with radially extending blades for changing the direction of the axially moving air to a radial outward direction toward said belt and the outer surfaces of said pulleys and said central half-pulley section.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |