US3729950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for air conditioning equipment containing a number of conditioning units
Assignee: Svenska Flaktfabriken AB
•
Filing: 1971-05-24
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Granted: 1973-05-01
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Expires: 1991-05-24
Abstract
Abstract Air conditioning equipment containing several conditioning units comprising a bottom and a top, two opposing sides and two ends having an inlet and an outlet for the air to be conditioned, the bottom consisting of a bottom foundation resistant to torsional and bending forces, made up of two beams extending over the entire length of the equipment and two spacing elements resistant to torsional forces, adjoining each end, the top consisting of a corresponding element, the beams having a web arranged somewhat rearward in relation to the sides of the equipment and one flange extending to said sides, the plates forming the bottom and top of the equipment being fully bent back round the said protecting flange, the top and the bottom being interconnected by cornerposts, secured to the bottom and the top.
Inventors
- 👤 L Astrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:12
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/20; F24F3/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
252 words
An arrangement for air conditioning equipment containing a number of conditioning units and with high requirements on mechanical stability and airtightness, and comprising a casing consisting of a closed bottom, a closed top, two opposing sides adapted to be closed, and two ends having respectively an inlet and an outlet for the air which is to be conditioned and which is to be supplied from the equipment to a system of ducts or direct to a room, characterized in that the bottom of the casing consists of a structure resistant to torsional and bending forces and formed as a bottom foundation, made up of a plate and two beams extending along the entire length of the equipment and two spacing elements, resistant to torsional forces, between said beams and adjoining each end, and in that the top of the casing consists of a corresponding structure, at least one of the beams in each structure having an upstanding web arranged inward in relation to the adjacent side of the equipment and at least one flange projecting outwardly to the adjacent side of the equipment, and that the plates forming the bottom and top of the equipment are fully bent back round the said outwardly projecting flange and are thereafter directed inwards towards the upstanding web of the respective beam, and in that the top of the casing is connected to the bottom of the casing by means of cornerposts attached to the bottom and top, the two ends being connected to the cornerposts.
Claim 2
Dependent Claim
252 words
An arrangement for air conditioning equipment containing a number of conditioning units and with high requirements on mechanical stability and airtightness, and comprising a casing consisting of a closed bottom, a closed top, two opposing sides adapted to be closed, and two ends having respectively an inlet and an outlet for the air which is to be conditioned and which is to be supplied from the equipment to a system of ducts or direct to a room, characterized in that the bottom of the casing consists of a structure resistant to torsional and bending forces and formed as a bottom foundation, made up of a plate and two beams extending along the entire length of the equipment and two spacing elements, resistant to torsional forces, between said beams and adjoining each end, and in that the top of the casing consists of a corresponding structure, at least one of the beams in each structure having an upstanding web arranged inward in relation to the adjacent side of the equipment and at least one flange projecting outwardly to the adjacent side of the equipment, and that the plates forming the bottom and top of the equipment are fully bent back round the said outwardly projecting flange and are thereafter directed inwards towards the upstanding web of the respective beam, and in that the top of the casing is connected to the bottom of the casing by means of cornerposts attached to the bottom and top, the two ends being connected to the cornerposts.
Claim 3
Dependent Claim
43 words
An arrangement for air conditioning equipment according to claim 1, characterized in that locking devices and connecting-pieces for conditioning units in the equipment are accommodated within the width dimension of the equipment by spanning between the flanges of the upper and lower structures.
Claim 4
Dependent Claim
53 words
An arrangement for air conditioning equipment according to claim 1, characterized in that the beams in the bottom foundation have a web of a given heighT, and that the bottom plate is constructed to provide a basin for water and the necessary controls between the bottom beams and within said given height dimension.
Claim 5
Dependent Claim
25 words
An arrangement for air conditioning equipment according to claim 1, characterized in that said spacing elements consist of transverse tubular stays attached to the beams.
Claim 6
Dependent Claim
44 words
An arrangement for air conditioning equipment according to claim 4, characterized in that said tubular stays are secured to the beams in the bottom foundation by means of rectangular tubes extending along the length of said beams against the interior surface of its web.
Claim 7
Dependent Claim
62 words
An arrangement for air conditioning equipment according to claim 1, characterized in that one side wall of the equipment is sealed by means of a number of doors having inward-bent stiffening edges and, in the corners, cut-outs for the outward-bent flanges of the bottom and top structures, said stiffening edges adapted to engage over the top flange and under the bottom flange.
Claim 8
Dependent Claim
73 words
An arrangement for air conditioning equipment according to claim 6, characterized in that said one side of the equipment has locking sections on each side of the inspection doors, said locking sections being fastened between the outward-projecting flanges of the beams of the bottom and top structures, and locking devices for the doors of the conditioning units mounted on said sections so that these do not project beyond the width of the equipment.
Claim 9
Dependent Claim
39 words
An arrangement according to claim 1 wherein each of said beams has an upstanding web and outwardly projecting flange, said casing including sides adapted to sealingly engage said plates where they are bent back around said outwardly projecting flanges.
References Cited (Backward Citations)
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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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |