US4394111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Top cover, motor, fan and fan shroud assembly for an air conditioning unit
Assignee: INTER-CITY PRODUCTS Corp (USA)
•
Filing: 1981-09-11
•
Granted: 1983-07-19
•
Expires: 2001-09-11
Abstract
Abstract A top cover, motor, fan and fan shroud for an air conditioning unit are assembled into an integrated structure with motor supporting legs which attach to the top cover and cause the shroud to be drawn against the cover. The legs connect with the shroud in a manner serving to preserve the concentricity of the shroud, and attach to the inside of a band which can be tightened to assure containment of the motor in a defined position under the shroud and vented portion of the cover.
Inventors
- 👤 John M. Wiese
- 👤 Russell W. Hoeffken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:09
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
In an air conditioning unit, a top cover with a vent for the passage of air, a depending cylindrical shroud in communication with said vent, a fan and a motor for driving the fan having axes in common with the axis of the shroud, motor supporting legs which are connected to the shroud and have end flanged portions in substantially the same plane as the upper end of the shroud, and means for simultaneously fastening said flanged portions of the motor supporting legs to the top cover and drawing the upper end of the shroud snugly against the cover.
Claim 2
Dependent Claim
99 words
In an air conditioning unit, a top cover with a vent for the passage of air, a depending cylindrical shroud in communication with said vent, a fan and a motor for driving the fan having axes in common with the axis of the shroud, motor supporting legs which are connected to the shroud and have end flanged portions in substantially the same plane as the upper end of the shroud, and means for simultaneously fastening said flanged portions of the motor supporting legs to the top cover and drawing the upper end of the shroud snugly against the cover.
Claim 3
Dependent Claim
41 words
The combination of claim 1 wherein the shroud is a sheet metal part with spaced apertures therearound, and the motor supporting legs are formed sheet metal parts with tabs thereon which extend into said apertures to connect the legs and shroud.
Claim 4
Dependent Claim
18 words
The combination of claim 1 wherein the shroud is a curled sheet metal part with interlocked end parts.
Claim 5
Dependent Claim
25 words
The combination of claim 1 wherein the shroud is a sheet metal part with an inwardly projecting V-shaped circular ridge near the bottom edge thereof.
Claim 6
Dependent Claim
61 words
The combination of claim 1 wherein the shroud is a sheet metal part with an inwardly projecting V-shaped circular ridge near the bottom edge thereof and with spaced apart apertures in close proximity to the ridge, the motor supporting legs are formed sheet metal parts with tabs thereon and such tabs extend into said apertures to connect the legs and shroud.
Claim 7
Dependent Claim
40 words
The combination of claim 1 wherein the motor has a band wrapped therearound, the motor supporting legs include flanges which are spot welded to the inside of the band, and means are provided for tightening the band on the motor.
Claim 8
Dependent Claim
65 words
The combination of claim 1 wherein the motor has a band wrapped therearound, the motor supporting legs include flanges which are affixed to the inside of the band, means are provided for tightening the band on the motor, and the flanges on the motor supporting legs include sharp edges for making metal to metal contact with the motor through any coatings on the engaging parts.
Claim 9
Dependent Claim
33 words
The combination of claim 1 wherein the motor has a band wrapped therearound, the motor supporting legs are affixed to the band, and means are provided for tightening the band on the motor.
Claim 10
Dependent Claim
17 words
The combination of claim 8 wherein the legs are affixed to the inside of the motor band.
Claim 11
Dependent Claim
23 words
The combination of claim 8 wherein the band tightening means comprises a bolt extending through the band, and a nut on the bolt.
References Cited (Backward Citations)
US1981424A
Cited
US2812703A
Cited
US3093189A
Cited
DE2233737A1
Cited
US3858644A
Cited
US4036292A
Cited
US4043708A
Cited
US4055113A
Cited
US4191245A
Cited
US4185688A
Cited
US4202409A
Cited
JPS56138630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |