Flexible or portable closure – partition – or panel – With hood – canopy – shield storage chamber – or outrigged... – For roll type
Patent
1984-02-17
1985-03-26
Caun, Peter M.
Flexible or portable closure, partition, or panel
With hood, canopy, shield storage chamber, or outrigged...
For roll type
160121R, E06B 908, E06B 721
Patent
active
045067201
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an insulating curtain, comprising an inflatable element which is intended to cover a surface area when filled with air, and to be kept in a store adjacent said area in a deflated state, there being means adapted for supplying air to the inflatable element, which contains at least one central and at least one peripheral airtight portion, the means supplying air being adapted for filling the central portion in conjunction with the element being fed out of the store and filling the peripheral portion when the air supply to the central portion is terminated or almost terminated.
Inflatable elements are previously known, for example through U.S. Pat. Nos. 3,298,142, 3,231,006 and DE-OS No. 2 026 260. U.S. Pat. No. 3,298,142 relates to a curtain of an extremely complicated nature where the opposing sheets forming the curtain consist of a resilient steel material containing a plurality of airtight tubes in the longitudinal direction of the curtain, said tubes also consisting of a resilient material. The whole of this structure can be wound up on a roller, for assisting in this there being a plurality of guide rollers arranged in front of the storage roller and intended to flatten out the resilient outer sheets and the inner air-carrying ducts, thus enabling the curtain to be reeled up on the storage roller. Even in a flattened condition the air ducts can, however, supply air from the interior of the storage roller to the area outside the guide rollers, where the resilient material in both outer sheets as well as in the air ducts can assume its natural shape and allow air supply. U.S. Pat. No. 3,231,006 also relates to an insulating curtain. In this case, however, the means are lacking which, according to the invention, are necessary for enabling the curtain to be fed out from the store.
The DE-OS No. 2 026 260 relates to a certain type of insulating curtain intended for separating and sealing rooms in buildings and it can also be used for insulating windows. This curtain is, however, nothing other than an inflatable cushion with regard to its construction, and is intended for placing in a window embrasure, for example.
None of these known structures could come anywhere near to meeting the requirements for an insulating curtain of the type intended by the invention, and which can be placed immediately adjacent a surface area which is to be insulated, and by the supply of air can be fed out from the store and caused to cover said area, and at a subsequent step be caused to seal either against said area or around it, so that both an insulating and a sealing effect are obtained which is absolutely essential if it is desired to obtain good results from the aspect of conserving energy.
The sealing and insulating curtain in accordance with the invention is active against heat and cold as well as noise, air pollution and draughts, and can be used as night-time insulation, for example for display windows, greenhouse windows, french windows and ordinary doors and factory doors. It can also be used to prevent evaporation and thereby heat losses, e.g. from swimming pools and other liquid surfaces.
The object of the present invention is thus to achieve an insulating curtain which can be used for a plurality of different applications when it is a question of preventing heat losses from a surface to the surroundings, while simultaneously constituting an effective seal for dampening noise and preventing the penetration of air pollution.
This object is essentially realized in accordance with the invention in that the central portion is substantially airtightly compressible between two squeezing or compressing members along at least a portion of its width, the compressed area defining an inflatable part in relation to a substantially airless part, and that air ducts are arranged within a part of the element which is not compressible by the compressing members, to connect the inflating means to the airtight portions, and that feeding the element out from the storage takes place by supplying air to t
REFERENCES:
patent: 3231006 (1966-01-01), Fisher et al.
patent: 3298142 (1967-01-01), Isaac
patent: 4038788 (1977-08-01), Claessens
patent: 4187896 (1980-02-01), Shore
Caun Peter M.
Lieberman Cherney S.
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