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US4660389A Expired / Lapsed US ⏱️ 0.0 years remaining

Ceiling-concealment type air conditioning apparatus

Assignee: Mitsubishi Electric Corp
•
Filing: 1985-10-30
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Granted: 1987-04-28
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Expires: 2005-10-30
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Abstract

Abstract An air blower chamber includes a partition plate provided with an air intake opening, an air blower mounted on the partition plate so as to be detachable from the same through the air intake opening, a box for auxiliary parts and an air filter placed at an inlet opening of said main body. An air intake panel is detachably fitted to an opening of a ceiling which is spaced apart from and below the inlet opening and an air intake chamber for connecting the inlet opening to the opening of the ceiling. Accordingly, inspection and services for blades and the motor of a blower, auxiliary parts and air filter can be easily made by simply detaching the air intake panel without necessity of a worker to enter in the ceiling.

Inventors

  • 👤 Hitoshi Kido
  • 👤 Yoshinobu Igarashi
  • 👤 Junji Okabe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 10:26
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/0007; F24F1/0043; F24F1/0047; F24F1/0059; F24F1/0063; F24F1/0071; F24F1/0073; F24F13/00; F24F13/28; F24F2221/00; F24F2221/14

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 217 words
A ceiling-concealment type air conditioning apparatus which comprises: an air conditioning apparatus main body having an air blower chamber which includes a partition plate provided with an air intake opening, an air blower mounted on said partition plate so as to be detachable from the same through said air intake opening, a box for auxiliary parts and an air filter placed at an inlet opening of said main body; a heat exchanging chamber containing a heat exchanger which performs heat-exchange between a heat transfer medium and air to be heat-exchanged fed from said air blower; an air intake panel detachably fitted to an opening of a ceiling which is spaced apart from and below said inlet opening of the main body; and an air intake chamber for connecting said inlet opening of said main body to said opening of the ceiling so as to form an air passage for feeding air to said air blower, wherein said partition plate is placed in the horizontal direction in said air blower chamber to divide the same into upper and lower sections, wherein said air blower comprises a motor and blades, and wherein said motor is in said lower section and is supported by said partition plate by means of legs and said blades are placed in said upper section.
Claim 2
Dependent Claim 217 words
A ceiling-concealment type air conditioning apparatus which comprises: an air conditioning apparatus main body having an air blower chamber which includes a partition plate provided with an air intake opening, an air blower mounted on said partition plate so as to be detachable from the same through said air intake opening, a box for auxiliary parts and an air filter placed at an inlet opening of said main body; a heat exchanging chamber containing a heat exchanger which performs heat-exchange between a heat transfer medium and air to be heat-exchanged fed from said air blower; an air intake panel detachably fitted to an opening of a ceiling which is spaced apart from and below said inlet opening of the main body; and an air intake chamber for connecting said inlet opening of said main body to said opening of the ceiling so as to form an air passage for feeding air to said air blower, wherein said partition plate is placed in the horizontal direction in said air blower chamber to divide the same into upper and lower sections, wherein said air blower comprises a motor and blades, and wherein said motor is in said lower section and is supported by said partition plate by means of legs and said blades are placed in said upper section.
Claim 3
Dependent Claim 34 words
A ceiling-concealment type air conditioning apparatus according to claim 1, wherein the inner diameter of said air intake opening of the partition plate is greater than that of the outer diameter of said blades.
Claim 4
Dependent Claim 23 words
A ceiling-concealment type air conditioning apparatus according to claim 1, wherein said air intake chamber is defined by a bellows type outer wall.
Claim 5
Dependent Claim 33 words
A ceiling-concealment type air conditioning apparatus according to claim 1, wherein said box for auxiliary parts is attached to said partition plate by a hinge in said lower section of the main body.

References Cited (Backward Citations)

GB1381600A Cited
JPS5735769A Cited
US4458502A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-04-27 1990-10-27 1991-04-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-04-27 1994-10-27 1995-04-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-04-27 1998-10-27 1999-04-28 $7700.00 Window Closed / Lapsed

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