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US4728838A Expired / Lapsed US ⏱️ 0.0 years remaining

Assembly for mounting a motor to an insulated wall

Assignee: Magic Chef Inc
•
Filing: 1986-11-06
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Granted: 1988-03-01
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Expires: 2006-11-06
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Abstract

Abstract A device for mounting a motor to the wall of a refrigerator whereby the motor is supported on the exterior side of the wall and is provided with a long output shaft which extends through the wall and is supported in a bearing assembly carried by a thermal barrier which maintains stable rotation of the shaft and prevents motor heat from flowing to the bearing assembly.

Inventors

  • 👤 Sheldon W. Mandel
  • 👤 Chinmoy Banerjee

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 16:59
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K5/00; H02K5/04; H02K5/15; H02K5/16; H02K5/173; H02K5/1732; Y; Y10; Y10S; Y10S384/00; Y10S384/90

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 210 words
A motor mount assembly for attachment to a wall separating first and second zones and provided with a hole therethrough, which assembly comprises: (a) an elongate member having a first end insertable through the hole in the wall for disposition within the first zone; (b) attachment means carried by a second end of the elongate member for securing the member to the side of the wall facing the second zone; (c) an axial passageway extending longitudinally through the elongate member; (d) a motor mounted to the attachment means, the motor including first and second output shafts, the output shafts extending from opposite sides of the motor for rotation about a common axis of rotation; (e) a first bearing assembly disposed withint he axial passageway and secured to the elongate member adjacent the first end thereof for rotatably supporting the first output shaft; (f) a second bearing assembly carried by the attachment means for rotatably supporting the second output shaft; (g) the motor being disposed between the first and second bearing assemblies; and (h) the length of the elongate member being such that its first end terminates short of the end of the first output shaft for permitting attachment of a fan blade to the end of the first output shaft.
Claim 2
Dependent Claim 210 words
A motor mount assembly for attachment to a wall separating first and second zones and provided with a hole therethrough, which assembly comprises: (a) an elongate member having a first end insertable through the hole in the wall for disposition within the first zone; (b) attachment means carried by a second end of the elongate member for securing the member to the side of the wall facing the second zone; (c) an axial passageway extending longitudinally through the elongate member; (d) a motor mounted to the attachment means, the motor including first and second output shafts, the output shafts extending from opposite sides of the motor for rotation about a common axis of rotation; (e) a first bearing assembly disposed withint he axial passageway and secured to the elongate member adjacent the first end thereof for rotatably supporting the first output shaft; (f) a second bearing assembly carried by the attachment means for rotatably supporting the second output shaft; (g) the motor being disposed between the first and second bearing assemblies; and (h) the length of the elongate member being such that its first end terminates short of the end of the first output shaft for permitting attachment of a fan blade to the end of the first output shaft.
Claim 3
Dependent Claim 18 words
The assembly of claim 1 wherein the elongate member is formed of a material having low thermal conductivity.
Claim 4
Dependent Claim 28 words
The assembly of claim 1 wherein the attachment means includes a flanged mounting plate, and the elongate member and flanged mounting plate are integrally formed of plastic material.
Claim 5
Dependent Claim 32 words
The assembly of clim 3 wherein the plastic material includes a member selected from the group consisting of a thermol plastic, a thermal setting plastic, a glass-filled polycarbonate plastic and mixtures thereof.
Claim 6
Dependent Claim 32 words
The assembly of clim 3 wherein the plastic material includes a member selected from the group consisting of a thermol plastic, a thermal setting plastic, a glass-filled polycarbonate plastic and mixtures thereof.
Claim 7
Dependent Claim 19 words
The assembly of claim 1 wherein the elongate member and the axial passageway are each of a cylindrical configuration.
Claim 8
Dependent Claim 32 words
The assembly of claim 1 wherein the attachment means includes a housing for securing the motor thereto and a bearing cup, with the second bearing assembly being disposed within the bearing cup.

References Cited (Backward Citations)

US1953540A Cited
US2173489A Cited
US2174854A Cited
US2489009A Cited
US2656973A Cited
US2694157A Cited
US2714538A Cited
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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) 1991-03-01 1991-08-31 1992-03-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-03-01 1995-08-31 1996-03-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-03-01 1999-08-31 2000-03-01 $7700.00 Window Closed / Lapsed

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