US2117978A - Weather-strip - Google Patents

Description

P. R. OFTEDAL WEATHER STRIP May 17, 1938.

Filed Jan. 17, 1935 Patented May 17, 1938 lUNITED STATES PATENT OFFICE l waaraans'ranl Philip E. Oitedal, Chicago, lll. Appncaao January 1r, 193s, serial No. 2,115

, s claim. (ol., lss-c5) This invention relates to weather-strips for windows or doors, and more particularly to weather-strips for metal windows or doors which are opened or closed by means of hinged, pivoted or projected connections.

In weather-strips on the market today water and dirt accumulate in the same when the window is open and also the sharp edges of the metal strips have the inherent danger of causing cuts and bruises and for this reason are undesirable.

It is, therefore, one object of my invention to make a tight weather-strip which will not permit air and water to accumulate therein. A second object is to eliminate the danger of sharp edges on metal weather-strips. These and other objects will be apparent from the drawing, in which Figure l is a front view of a metal window frame in perspective employing my improved weather-strip; I

Figure 2 is a cross section of a weather-strip taken on lines 2-2 of Figure l looking in the direction of the arrows;

Figure 3 is an enlarged cross sectional view of Figure 2;

Figure 4 is a cross section of the weather-strip taken on lines 4-4 of Figure 1;

Figure 5 is a modied form of the improved weather-strip.

In thel various iigureslike characters are given to similar parts in the drawing, in which I represents a metal window frame, 2 the weatherstrip on the lower horizontal side of the frame, l the weather-strip on the vertical side adiacent to the hinged connection of the window, I the pin joining the vertical weather-strip 3 and the horizontal strip 2, 5 represents the vertical weather-strip remote from the hinged side of the window frame, 6A the pin connecting weatherstrip 5 and weather-strip 2. l represents the horizontal top weather-strip and the pin connecting said top weather-strip 'I and the vertical strip 5, 2 the pin connecting strip 3 and strip l, III represents the locking bar, I I the tapering portion thereof, I2 the slot or opening in said bar vI to permit the insertion of the weather-strip 5, Il represents the horizontal portion of the window frame immediately adjacent to the lower horizontal weather-strip 2, and Il the portion of the frame immediately adjacent to the horizontal upper metal strip 1. I represents the window sash frame, I6 the flange at the bottom of said frame, I'I an L extending from a portion of the window frame I3, and I8 a vertical flange located on the said L Il, I9 is a downwardly projecting arm of the sash frame I5, a casing for holding the glass 2|. 22 is one end of vmy improved weather-strip,\23 that portion where it is bent upon itself, 24 the upwardly projecting portion of said strip which is bent upon itself at 25. extending thence downwardly, bent upon itself again at 28 and extending upwardly and again downwardly to form a U-shaped bend, again having the edge 21 bent upon itself and terminating at 28. 29 indicates a further bend in the resilient member of the weather-strip.

l From the drawing, particularly Figure 2 thereof', it will' be obvious that no water, dirt or accumulation of any kind is possible in the weatherstrip there shown in cross section. If the resilient member 2l extended upwardly rather than down- 15 wardly, it is clearly obvious that water and dirt would thus accumulate.

'I'hemethod of constructing the weather-strip with all edges bent upon itself also eliminates and bruises in opening or closing the Window.

Aside from the new and improved features just mentioned, the weather-strip forms a very effective closure, wherein the flange I6 presses against the downwardly projecting member 24 on the im. proved weather-strip and causes a tight contact, as shown in the dotted lines in Figure 3.

The particular construction designed primarily for the bottom horizontal part of the window frame may be used on the vertical and top horizontal side, although the most important function of the particular form of the strip shown in Figure 2 is obviously for the bottom side, since because of gravity neither water nor dirt will accumulate in the vertical weather-strips, Thus the particular form of the strip shown in Figures 2 and 3 may be used on all four sides of the frame, although it may be preferred to use the same only on the bottom horizontal and vertical sides nearest the hinged side, 40

using either the form of strip shown in Figure 4 or Figure 5 on the tophorizontal and vertical sides remote from the hinged connection. It will be readily understood that the form of weatherstripused on the bottom horizontal side as shown in Figures 2 and 3 is essential and that the particular form of the strips used in any of the other three sides is optional.

v The lock bar I0 is made integrally with the window frame I, having a tapered end II for tight 5 0 frictional contact with the handle of the sash frame and said lock bar I 0 having a groove I2 for permitting the weather-strip 5 to be inserted therein and thus serves to reenforce the weatherstrip on the window frame.

or upper horizontal 35 It will be obvious that as the window is closed and the handle shown in Figure 1 is drawn tight by frictional contact passing over the tapered end Il on the lock bar I0, that the ilange i8 of the window sash will press against the weather-strip on all four sides and thus by tight frictional contact prevent any air from coming in the window while it is closed.

Having thus described my invention what I claim as new and desire to claim by Letters Patent is:

l. A weather strip comprising two nested U- shaped members formed o! a single piece o! resilient metal bent upon itself, the inner U-shaped portion of said nested U-shaped member adapted to engage a part of the window on which the weather strip ls to be mounted, the outer U- shaped portion having one side thereof extending outwardly from the adjacent side of the inner U-shaped portion for frictional contact with a window sash or frame.

2. A weatherstrip of the character described comprising a single strip of relatively thin resilient metal bent to form two nested U-shaped members, joined at one side of the U, the inner U-shaped member being adapted to be placed in embracing relation to one narrow element of a metal window frame and sash assembly with said one side of the U remote from the other element of said assembly, and with the other side of said inner U-shaped member and the corresponding side of the outer U-shaped memberv located between the elements of said assembly, said other side of said inner U-shaped member having its edge reversely bent inwardly of the U, said corresponding side of the outer U-shaped member being formed normally to diverge from the inner U for compression by the other element of said assembly, and said corresponding side of the outer U-shaped member being substantially longer than the adjacent side of the inner U-shaped member and having its edge reversely bent toward the inner U-shaped member and being oi' such a length that said reversely bent edge of the outer U-shaped member clears said inner U- shaped member when said corresponding side of the outer U-shaped member is compressed between the elements of said assembly.

3. In combination with a metal window assembly having a frame element and a swingably related sash element, weatherstripping mounted around the edges of one of said elements, said one of said elements having a narrow projecting edge flange located in a plane parallel to the plane of the other element when the sash is in closed position, said weatherstripping along two adjacent intersecting edges of said one element each comprising a strip of thin resilient metal bent to provide a pair oi' nested U-shaped members joined along one side at the open end of the U, the inner one of which members constitutes a mounting member adapted to embrace said projecting edge flange with the joined sides of said members on the face of said ilange remote from the other element of said assembly, and the outer U-shaped member constituting a sealing member and being formed to diverge from the other face of said flange for compression between .said elements of said assembly, the joined sides of the U-shaped members of the weatherstripping along one of said intersecting edges overlapping the joined sides of the U-shaped members of the weatherstripping along the other intersecting edge, said overlapping being at the juncture of said edges, and means connecting said overlapping portions of the weatherstripping.

PHILIP R. OFI'EDAL.

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