US5042570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling construction having magnetic attachment between heat exchanger elements and ceiling tiles
Assignee: ZENT-FRENGER GESELLSCHAFT fur GEBAEUDETECHNIK MBH
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Filing: 1990-06-27
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Granted: 1991-08-27
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Expires: 2010-06-27
Abstract
Abstract A ceiling construction comprising a frame built out of longitudinal girders 1 and cross girders 2 connected to the longitudinal girders. Tiles 3 are suspended in fields defined by the frames. Heat-exchanger elements 4 are arranged above the tiles 3. In order to assure that an as good as possible heat transfer between the heat-exchanger elements 4 and the tiles 3 is guaranteed, the tiles are mounted according to the invention on the heat-exchanger elements by means of holding magnets 8.
Inventors
- 👤 Karl A. Schmitt-Raiser
- 👤 Fritz Nussle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:51
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/064; E04B9/12; E04B9/16; E04B9/22; E04B9/24; E04B9/26; F; F24; F24D; F24D19/00; F24D19/008; F24D19/009; F24D3/00; F24D3/12; F24D3/16; F24D3/165; F24F; F24F5/00; F24F5/0089; F24F5/0092; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
50 words
A ceiling construction comprising a frame built of longitudinal girders and cross girders connected to said longitudinal girders, comprising tiles suspended in fields defined by the frames, and comprising heat-exchanger elements arranged above the tiles, wherein the heat-exchanger elements are mounted on the tiles by means of a magnetic force.
Claim 2
Dependent Claim
50 words
A ceiling construction comprising a frame built of longitudinal girders and cross girders connected to said longitudinal girders, comprising tiles suspended in fields defined by the frames, and comprising heat-exchanger elements arranged above the tiles, wherein the heat-exchanger elements are mounted on the tiles by means of a magnetic force.
Claim 3
Dependent Claim
17 words
The ceiling construction according to claim 1, wherein the tiles are manufactured of a thin sheet-metal material.
Claim 4
Dependent Claim
12 words
The ceiling construction according to claim 2, wherein the tiles are perforated.
Claim 5
Dependent Claim
19 words
The ceiling construction according to claim 2, wherein the visible side of the tile has a porous thin coating.
Claim 6
Dependent Claim
35 words
The ceiling construction according to calim 1, wherein the heat-exchanger element includes a pipe and a profiled rail supported on the lower area of said pipe, which profiled rail has a substantially flat bottom surface.
Claim 7
Dependent Claim
35 words
The ceiling construction according to calim 1, wherein the heat-exchanger element includes a pipe and a profiled rail supported on the lower area of said pipe, which profiled rail has a substantially flat bottom surface.
Claim 8
Dependent Claim
20 words
The ceiling construction according to claim 5, wherein holding magnets are arranged on the lower area of the profiled rail.
Claim 9
Dependent Claim
32 words
The ceiling construction according to claim 5, wherein the profiled rail has lateral flanges which are set back with respect to the bottom surface and on which the holding magnets are arranged.
Claim 10
Dependent Claim
27 words
The ceiling construction according to claim 5, wherein the profiled rail has a substantially U-shaped cross section and has a partially cylindrical area to receive the pipe.
Claim 11
Dependent Claim
17 words
The ceiling construction according to claim 5, wherein the holding magnets are each designed like a strip.
Claim 12
Dependent Claim
37 words
The ceiling construction according to claim 8, wherein the profiled rail has thickened areas at the free ends of the legs of the U-profile, which thickened areas can be held form-loockingly in recesses of the cross girders.
Claim 13
Dependent Claim
24 words
The ceiling construction according to claim 10, wherein the cross girder includes at least one racklike support rail arranged parallel to said cross girder.
Claim 14
Dependent Claim
22 words
The ceiling construction according to claim 11, wherein the support rail is held on the longitudinal girders by means of spring bars.
Claim 15
Dependent Claim
37 words
The ceiling construction according to claim 8, wherein the profiled rail is supported on the cross girders by means of mounting elements which grip around the cross girders and can be anchored to the partially cylindrical area.
Claim 16
Dependent Claim
25 words
The ceiling construction according to claim 5, wherein connecting pipes are arranged above the cross girders from which the pipes of the heat-exchanger elements branch.
Claim 17
Dependent Claim
18 words
The ceiling construction according to claim 6, wherein the holding magnets are fixedly connected to the profiled rail.
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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) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |