US4601684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
V-belt drive system for corrosive atmospheres
Assignee: Baltimore Aircoil Co Inc
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Filing: 1984-03-07
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Granted: 1986-07-22
•
Expires: 2004-03-07
Abstract
Abstract A belt-drive assembly for use on air-moving systems in corrosive atmospheres comprising a larger non-metallic driven sheave in conjunction with a smaller metallic driver sheave wherein the metallic sheave may be located in a vented enclosure is disclosed. This arrangement prevents corrosion of the drive system and prolongs belt life.
Inventors
- 👤 David F. Geary
- 👤 Edward N. Schinner
- 👤 George R. Shriver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:51
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/04; F16G5/06; F16H; F16H57/00; F16H57/02; F16H57/035; F16H7/00; F16H7/02; F16H2057/02034; Y; Y10; Y10S; Y10S74/00; Y10S74/10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186; Y10T74/2189
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
An improved V-belt drive apparatus including a driven sheave and a driver sheave connected by a V-belt, all contained within a zone of corrosive atmosphere, said improvement comprising: an enclosure within said zone containing only said driver sheave and a portion of the V-belt trained thereabout; and venting means connecting said enclosure to an ambient atmosphere outside the zone of corrosive atmosphere whereby said ambient atmosphere may flow directly from outside the zone through said enclosure to pass across said driver sheave and exhaust into said zone of corrosive atmosphere.
Claim 2
Dependent Claim
90 words
An improved V-belt drive apparatus including a driven sheave and a driver sheave connected by a V-belt, all contained within a zone of corrosive atmosphere, said improvement comprising: an enclosure within said zone containing only said driver sheave and a portion of the V-belt trained thereabout; and venting means connecting said enclosure to an ambient atmosphere outside the zone of corrosive atmosphere whereby said ambient atmosphere may flow directly from outside the zone through said enclosure to pass across said driver sheave and exhaust into said zone of corrosive atmosphere.
Claim 3
Dependent Claim
32 words
The apparatus of claim 1 wherein said driven sheave is connected to a fan means that moves said corrosive atmosphere through said zone and also draws said ambient atmosphere through said enclosure.
Claim 4
Dependent Claim
25 words
The apparatus of claim 2 wherein said driven sheave is comprised of a non-metallic material and said driver sheave is comprised of a metallic material.
Claim 5
Dependent Claim
20 words
The apparatus of claim 3 wherein said driven sheave is 11/2 to 10 times the diameter of said driver sheave.
Claim 6
Dependent Claim
25 words
The apparatus of claim 1 where said driven sheave is comprised of a non-metallic material and said driver sheave is comprised of a metallic material.
Claim 7
Dependent Claim
29 words
The apparatus of claim 1 wherein said enclosure has open slots for said V-belt and said venting means includes a conduit connected to said enclosure generally opposite said slots.
Claim 8
Dependent Claim
21 words
The apparatus of claim 6 wherein said driver sheave is connected to a motor, said motor being located outside said enclosure.
References Cited (Backward Citations)
US438644A
Cited
US2205975A
Cited
US2315317A
Cited
US2647409A
Cited
US3190543A
Cited
US3229424A
Cited
US3481214A
Cited
US3599502A
Cited
US3702741A
Cited
US3789684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |