DE2062770A1 - Multi-pane windows - Google Patents

Description

BW 625ΛΙ0ΒΙ 3071 17-12.1970

Applicant's Hordis Bros., Inc. Windsor, Connecticut Multiple windows

The invention relates to insulating windows in which several panes of glass are fixed and sealed in a frame, keeping a distance from one another, so that they are sealed chambers. In some designs of this type it is necessary to prevent the pressure difference between the interior of the window and the surrounding atmosphere from exceeding a certain value. This problem occurs particularly with windows where the distance between the glass panes is relatively large, so that the pressure change in the chamber caused by the bending of the glass panes does not sufficiently compensate for changes in the atmospheric pressure. This generally applies to double windows * which are not only good thermal insulators, but also good soundproof insulators. In windows of this type , the panes of glass are spaced from 2.5 to 30 µm apart, normally from 5 to 10 µm, and the panes are usually of different thicknesses. For example, one can be 19 am and the other 9 mn. In such cases the chamber between the oleo discs is so large that the deflection of the discs has only a limited effect on the internal pressure. In addition, almost only the thinner pane bends. In these catfish, strong stresses are produced on fluctuations in pressure and atmospheric pressure, which can cause the glass to break and which can damage the seal until it is

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can claim to say. Besides, it is especially in the case reflective glass panes the deflection an unpleasant same byproduct.

These disadvantages are to be avoided by reducing the pressure difference between the window sill and the surrounding Atmosphere is limited. At the same time, however, there should be no unimpeded connection between the window interior and the atmosphere exist, since then the problem is out; condensing moisture occurs. For this it is common to Desiccant to use by air drying to avoid condensation inside the window. However these desiccants would also become ineffective with unhindered access to the interior of the window.

In order to report these disadvantages in known multi-pane windows in which at least one pair of panes in one Frame keeping a sealed air cam includes * the invention suggests that the pressure difference between the grief and the surrounding atmosphere is limited to a certain value by a ventilation device, after which a value is normally limited closed liquid seal prevents air from passing through allowed.

This is expressed in a simplified arrangement for Limitation of the pressure difference between the interior of the window and the atmosphere. Due to the liquid seal, the interior of the window can always be opened in a particularly simple manner Way to be ventilated, while at the same time the resulting pressure difference is limited upwards. Compared to the known mechanical designs of ball valves and the like. As well as diaphragms that have hitherto been used for this purpose this is of considerable advantage.

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The invention will now be described with reference to the accompanying drawings. In the drawings show:

Figure 1: a perspective view of a double window with the BeIUftungsvorrichtung according to the invention;

FIGS. 2-5i show the operating sequence of the liquid seal from FIG individually the position of the sealant in the U-tube at differently large pressure differences;

FIG. 6: in detail the lower part of the U-tube; FIG. 7t shows a section along line 7-7 of FIG. 6;

FIG. 8: a further embodiment of the invention, partly in section;

FIG. 9: Another exemplary embodiment, also partially in section.

In the drawings, the same components are provided with the same reference numerals. That shown in Figures 1-7 Embodiment of the invention consists of a double window with glass panes 10 and 12 that are spaced apart are mounted in a frame 14 sealed at their periphery. The disk 10 is seated in the groove 16 and the disk 14 in the groove 18 of the frame and is sealed there with a suitable sealant. The space between the panes of glass, i.e. H. the chamber 20 is relatively drier Air filled and so that the moisture content of this air remains relatively low, is in the groove 22 of the Frame 14 a suitable desiccant, such as. B. kieselguhr or the like., Introduced.

So that the pressure difference between the chamber 20 and the surrounding atmosphere is limited to a certain value ' remains, and yet there is no permanent connection between There is a ventilation system for chamber 20

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intended. The line 24 leads through the sealed Frame 14 and is connected to the upper end of the leg 26 of the tube 28. The other leg 32 communicates with the atmosphere. In the U-tube there is a suitable sealing fluid 54, which should be exceeded at a certain pressure difference between the chamber 20 and the surrounding atmosphere in the chamber air supply or leads away from her. Figures 2, 3, 4 and 5 show the effect of the sealing fluid when the pressure in the Chamber 20 exceeds atmospheric pressure above a certain value. In Figure 2, the liquid level is in

both legs 26 and 32 are the same height, d. H. the pressure in the chamber 20 and the atmospheric pressure are the same. If the pressure in the chamber 20 increases compared to the atmosphere » pressure, the liquid moves into its position in Figure 3. Here it still prevents access to chamber 20, although there is already a pressure difference. In Figure 4 it is shown that the pressure difference has become so great is that from the chamber 20 air bubbles through the sealing liquid 34 and from the leg 32 of the U-tube exit. FIG. 5 shows the position of the sealing liquid after the pressure difference due to the air outlet from the chamber 20 has fallen so far that the sealing liquid sigils

fe reseal the ventilation system.

Preferably, a filter plug 38 is disposed in each of the legs 26 and 32, e.g. B. made of fiberglass that allows the passage of air, but prevents during transport or the passage of air during the normal operation of the seal mercury sprays into the chamber 20. The filter in the leg 32 prevents the same a loss of mercury during transport as well as the ingress of foreign substances to the surface of the sealing liquid.

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The sealing liquid jj4 can be any suitable, preferably non-volatile liquid. If the Seal eo is arranged that it is difficult to access, it is favorable that it works satisfactorily for several years. For this purpose there is mercury very suitable.

So that the U-tube can be made with a small diameter can and still allow a passage of air, it is beneficial to the inner part of the bend and the legs of the U-tubes do not have a circular cross-section, but to be provided with an enlarged part j56, as shown in FIG. 7, so that a channel is formed. In addition, any non-straight circular cross-section, but not sharply angled, would be advantageous Should have corners. Elliptical or pear-shaped cross-sections can be used. Through this non-Krelsfönalgen cross-section · the cohesion and the not wetting property of mercury * on glass or plastic exploited to be a preferred path of radiation for the air to accomplish. The air will flow through the narrower part of the tube, while the mercury will grow old in that part larger radius remains. This prevents the mercury from splashing and reduces the size of the arrangement enables.

In the illustrated embodiment, the U-tube 28 is attached to the outside of the frame 14. Ee can there on appropriate Way to be glued or raeohanieoh attached. One advantage of the invention is that the U-tube can be attached at any point. It can be attached both inside and outside the frame or away from the window and connected to it by a suitable line. In addition, the communication of the U-tubes

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to the atmosphere via a suitable desiccant so that only dry air is fed into the window. This drying agent can be used in addition to or instead of the drying agent in the groove 22 of the frame 14. It is also noted that the use of the U-tube facilitates setting the sealing system to a certain pressure difference, ie the pressure difference between the chamber 14 and the atmosphere can be adjusted to any certain value by varying the amount of sealant in the U-tube 28 be adjusted.

When AusfUhrungsbelspiel the figure δ a seal is provided instead of the U-tube previously used, which consists of a standard bubble bottle. This exists in turn from the container 40, into which the pipe 42 leads, its lower end normally into the sealing liquid 34 immersed. The pipe 40 is an enlarged part 44 within the container 40 for receiving the diol liquid strand during operation. In this example the seal is not attached to the window frame but to part of the surrounding wall .46. The outlet 48 of the container 40 communicates with the chamber 20 dee Fenafcers about the flexible insulation 50. The upper end of the tube 43 communicates with the d @ i * atmosphere and the seal normally prevents communication between the Inside the window and the atmosphere, however, allows air flow in one direction if the pressure difference exceeds a certain limit, as is also the case with the Figures 1-7 was depicted.

In Figure 9, a further embodiment of the invention is shown ^ in which two tubes 52 and 54 are arranged in the container 56 so that their lower ends

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sometimes immerse in the sealing liquid? 4. at In this example, both pipes are with one Enlarged part provided for receiving the DichtflUssigkeit during operation and the pipe 52 communicates with the atmosphere and the pipe 5 ^ leads in a sealed manner through the frame 14 and communicates with the Chamber 20 of the window. In this embodiment, a larger amount of sealing fluid can be used and downsized issues related to contamination of the liquid occur. As shown, »If the seal is attached to the outside of the frame, it goes without saying that» as with the other exemplary embodiments can be arranged at any point.

Also in the exemplary embodiments in FIGS. 6 and 9 Preferably, filter plugs «38 are used.

From the above it can be seen that the invention solves the problem of excessive stresses in the glass and in the sealing frame of Double windows releases and at the same time the free and uncontrolled access of air with corresponding moisture prevented inside the window.

Investments

2 sheets of drawings with

9 figures

9 claims

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Claims (8)

2082770 Claims More disc window, wherein at least © sliced "couple of holding a sealed air chamber © inschliesst in a frame distance, characterized _s that the pressure difference sswischen the chamber and the order" is limited imaging atmosphere through a Belttftungsvorrichtimg to a certain value, tiber proceed after which a normally closed liquid seal allows air to pass through. 2.) Multi-pane window according to claim 1, characterized in that the liquid seal is arranged in a connecting line between the atmosphere and the chamber. 3.) Multi-pane window according to claim 2, characterized in that that the liquid seal is arranged on the window frame. 4.) Multi-pane window according to claim 2, characterized in that the liquid seal from the window is arranged separately. 5.) Multi-pane window according to claim S, characterized in that that a filter is arranged in the supply line to the atmosphere. 6.) multi-pane window according to claim 2, characterized indicates that the liquid seal is formed by mercury « 109830/1 199 7.) multi-pane window according to claim 1, characterized in that the liquid seal consists of a standing U-tube containing a sealing liquid consists of one handle with the chamber and whose other communicates with the atmosphere. 8.) Multi-pane window according to claim 1, characterized in that the liquid seal consists of a the container containing the sealing liquid exists, over the level of which a feed line ends and into which another tubular feed line is immersed and that one supply line communicates with the atmosphere and the other with the chamber. 9 ·) Multi-level window according to Claim 1 *, characterized in that the liquid seal consists of a the Diohtiquid containing container, immerse in the two tubes, one of which with communicates with the atmosphere and the other with the chamber » 109830/1 199