Patent US4507940A successfully refreshed from Google Patents.
US4507940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning apparatus of the type embedded within a ceiling
Assignee: Mitsubishi Electric Corp
•
Filing: 1982-04-20
•
Granted: 1985-04-02
•
Expires: 2002-04-20
Abstract
Abstract An air conditioning apparatus of the type embedded within a ceiling of a room is disclosed which is characterized in that the upper part of the main body to be installed within the ceiling is divided by a partition plate into a suction side passage and a blow-off side passage, a blower and a heat exchanger being contained in the suction and the blow-off side passages, respectively, and that mounted in the lower part of the main body is a chamber block which comprises a suction chamber in communication with the blow-off side passage and a blow-off chamber provided around the suction chamber and in communication with the blow-off side passage, the chamber block being formed of foamed resin, and that an exposed ceiling panel having suction orifices at the middle thereof and in communication with the suction chamber and blow-off orifices provided around the suction orifices and in communication with the blow-off chamber is mounted to the lower part of the chamber block.
Inventors
- 👤 Mineo Sato
- 👤 Tadaaki Kawaguchi
- 👤 Yukinori Okawachi
- 👤 Yasuyuki Funahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:38
CPC Classifications
F; F24; F24D; F24D5/00; F24D5/02; F24D5/04; F24F; F24F1/00; F24F1/0007; F24F1/0043; F24F1/0047; F24F1/02; F24F1/032; F24F1/0323; F24F1/0328
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
239 words
An air conditioning apparatus of the type for being embedded within a ceiling of a room, comprising: a main body adapted to be mounted within a ceiling and having a horizontal top wall and substantially vertical side walls; a partition means in the upper part of said main body dividing said upper part into a suction passage in the center and on one side of said main body and a single discharge passage on the other side of said main body; a blower means contained in said suction passage and having the discharge thereof opening through said partition means, the discharge being angled upwardly with the plane across the end of the discharge being at an angle to said top wall; a heat exchanger means contained in said discharge passage and positioned laterally in a horizontal direction from said blower means, the intake side thereof facing diagonally upwardly toward said blower means and forming a V with said plane across the end of said discharge of said blower means; an annular chamber around the periphery of the lower part of said main body having the central opening thereof in communication with said suction passage and having the chamber in communication with said single discharge passage; and an exposed ceiling panel on the bottom of said annular passage having suction orifices at the middle thereof in communication with said central opening and discharge openings in communication with said annular chamber.
Claim 2
Dependent Claim
239 words
An air conditioning apparatus of the type for being embedded within a ceiling of a room, comprising: a main body adapted to be mounted within a ceiling and having a horizontal top wall and substantially vertical side walls; a partition means in the upper part of said main body dividing said upper part into a suction passage in the center and on one side of said main body and a single discharge passage on the other side of said main body; a blower means contained in said suction passage and having the discharge thereof opening through said partition means, the discharge being angled upwardly with the plane across the end of the discharge being at an angle to said top wall; a heat exchanger means contained in said discharge passage and positioned laterally in a horizontal direction from said blower means, the intake side thereof facing diagonally upwardly toward said blower means and forming a V with said plane across the end of said discharge of said blower means; an annular chamber around the periphery of the lower part of said main body having the central opening thereof in communication with said suction passage and having the chamber in communication with said single discharge passage; and an exposed ceiling panel on the bottom of said annular passage having suction orifices at the middle thereof in communication with said central opening and discharge openings in communication with said annular chamber.
Claim 3
Dependent Claim
18 words
An air conditioning apparatus as claimed in claim 1 wherein said annular chamber is made of foamed resin.
Claim 4
Dependent Claim
34 words
An air conditioning apparatus as claimed in claim 1 wherein said annular chamber is adjustably mounted on the lower part of said main body so as to be adjustable upwards and downwards relative thereto.
Claim 5
Dependent Claim
35 words
An air conditioning apparatus as claimed in claim 1 wherein the angle of said V between said discharge of said blower means and said intake side of said heat exchanger is from 50° to 90°.
References Cited (Backward Citations)
US3417227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-01 | 1988-10-01 | 1989-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-01 | 1992-10-01 | 1993-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-01 | 1996-10-01 | 1997-04-02 | $7700.00 | Window Closed / Lapsed |