Static structures (e.g. – buildings) – Transparent panel having active treatment with gas or liquid – Hygroscopic material; e.g. – internal drier
Patent
1986-04-04
1988-01-19
Friedman, Carl D.
Static structures (e.g., buildings)
Transparent panel having active treatment with gas or liquid
Hygroscopic material; e.g., internal drier
52202, 52631, 52790, 49498, E06B 712
Patent
active
047197285
DESCRIPTION:
BRIEF SUMMARY
The present invention realtes to a device for applying a second glass at a distance from a first glass in a window frame and including a spacer between the glasses for constituting a closed space between the glasses.
So called insulating glasses are previously known which have a design of the type mentioned above. Such insulating glasses are prefabricated and comprise a frame made very often of aluminium profiles, preferably such having a tubular form, towards the the two flat sides of said frame the glasses are fastened by aid of a suitable adhesive means. The frame is usually formed in such a way that it gets a maximum rigidity in all directions and the adhesive joint between the frame and the two glasses increases this most essential quality. The frame is usually provided with openings or perforations on the side turned towards the space between the glasses and is internally filled with a moisture absorbing substance to prevent forming of condensate on the insides of the glasses. Finally the joint areas between the glasses and the frame are sealed by suitable diffusion preventing material.
An insulating glass of the kind mentioned above cannot be mounted in a frame easily. It has to be connected and aligned into the frame very carefully so that the weight of the glasses will not endanger the insulating glass or the whole window design. This means that a space has to be formed between the end edges of the glasses and the frame on one hand and the part of the window frame facing the edge of the glass package, where suitable bearing connectors, wedges or similar are provided. This space is in itself advantageous as far as the life time of the wood material forming the window frame is concerned. But it means that the frame has a relatively long distance in the direction of the extension of the glass package.
The window frame used in the above mentioned conventional design can usually be dimensioned very thin when it is in fact is the glass package with the integrated frame therein which stands for a determining part of the strength of the whole window. It can be stated that the frame itself only serves to attaching suitable hinges, locks and similar details.
The conventional insulating glass has many advantages for example, the insulating capacity is good, it only has two sides of glasses which have to be cleaned and so on. As disadvantages can be mentioned that it requires for its manufacture an advanced and expensive machine and that it as a rule cannot be applied to older existing, window frames without extensive renewal work.
Different attempts have also been made in trying to fasten an extra, third glass in an already existing window frame.
A type of such subsequently mounted third glass can be regarded as a hanging on window or glass, which is fixed on the frame or the already existing glass by any suitable plastic list, metal profile or similar. The disadvantage with this design besides that condensate is easily formed between the glasses is that it cannot be made hermetically tight. Dirt easily penetrates between the extra glass and the already existing glass, so that in this way a window having three glasses requires at least six different glass surfaces to be cleaned.
Attempts further have been made to provide insulating glass imitating designs in older, already existing window frames. These attempts have however been less successful in that considerable moisture problems have arisen, that the fastening of the extra glass required so large resources what concerns machine-finishing, carefully measuring and so on that the task usually has to be carried out in a factory.
A further problem with such older designs has been that they often have been constructed directly on the design of the conventional insulating glass, on which rigid and not deformable frames have been used, which have totally other moving characteristics during influence of moisture or heat than the case is for the older, conventional and relatively strongly designed window frame of wood. These different moving characteristics often
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patent: 3280523 (1966-10-01), Stroud et al.
patent: 4109432 (1978-08-01), Pilz
patent: 4322926 (1982-04-01), Wolflingseder et al.
patent: 4453855 (1984-06-01), Richter et al.
patent: 4597232 (1986-07-01), Lingemann
Andersson Frank
Eriksson Lars
Chilcot Jr. Richard E.
Friedman Carl D.
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