US3732030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blower wheel assembly
Assignee: Trane US Inc
•
Filing: 1972-03-02
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Granted: 1973-05-08
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Expires: 1992-03-02
Abstract
Abstract By the present invention there is provided a blower wheel housing having generally parallel side walls including an air inlet and a wrapper connecting the side walls to form a hollow chamber. A blower wheel is located in the housing and is axially aligned with the inlet opening. Access to the blower wheel for its removal or servicing is provided by peeling back the wrapper radially away from the blower wheel.
Inventors
- 👤 D Mullings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:27
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/4226; F04D29/424
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
In a blower housing having generally parallel side walls, an air inlet in at least one of said side walls, a one-piece wrapper connecting said side walls to form the peripheral wall of said housing, the peripheral ends of said wrapper being spaced to provide an air outlet, a blower removably mounted in said housing, the improvement comprising: means permanently securing a portion of the axially disposed edges of said wrapper to said end walls extending inwardly from one of said peripheral ends; a plurality of tabs formed on said side walls and projecting into said housing for supporting the other portion of the axially disposed edges of said wrapper; holding means formed on the axial edges and adjacent the other peripheral end of said wrapper for removably fastening said wrapper to said side walls whereby said other portion of said wrapper is movable radially away from said blower wheel for access to said blower wheel.
Claim 2
Dependent Claim
156 words
In a blower housing having generally parallel side walls, an air inlet in at least one of said side walls, a one-piece wrapper connecting said side walls to form the peripheral wall of said housing, the peripheral ends of said wrapper being spaced to provide an air outlet, a blower removably mounted in said housing, the improvement comprising: means permanently securing a portion of the axially disposed edges of said wrapper to said end walls extending inwardly from one of said peripheral ends; a plurality of tabs formed on said side walls and projecting into said housing for supporting the other portion of the axially disposed edges of said wrapper; holding means formed on the axial edges and adjacent the other peripheral end of said wrapper for removably fastening said wrapper to said side walls whereby said other portion of said wrapper is movable radially away from said blower wheel for access to said blower wheel.
Claim 3
Dependent Claim
24 words
A blower housing as set forth in claim 1, wherein the side walls have substantially straight edge portions merging with an arcuate edge portion.
Claim 4
Dependent Claim
30 words
A blower housing as set forth in claim 2, wherein a portion of the wrapper is permanently secured to one of the straight edge portions and said arcuate edge portion.
Claim 5
Dependent Claim
29 words
A blower housing as set forth in claim 3, wherein the other portion of the wrapper is dimensioned to fit between said side walls to engage said support tabs.
References Cited (Backward Citations)
US1609545A
Cited
US927313A
Cited
US1978459A
Cited
US2482519A
Cited
US3485443A
Cited
US3619080A
Cited
US3627442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |