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Патент USA US2117978

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May 17, 1938.
Filed Jan. 17, 1935
Patented May 17, 1938
2,111,978 _
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 win
dow 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 ob
jects will be apparent from the drawing, in which
Figure -l is a front view of a metal window
frame in perspective employing my improved
Figure 2 is a cross section of a weather-strip
taken on lines 2-2 of Figure l looking in the di
rection 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 modiñed form of the improved
In thel various iigureslike characters are given
to similar parts in the drawing, in which I
represents a metal window frame, 2 the weather
strip on the lower horizontal side of the frame,
l the weather-strip on the vertical side adia
cent 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 weather
strip 5 and weather-strip 2. l represents the hor
40 izontal top weather-strip and ß the pin con
necting 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 por
tion thereof, I2 the slot or opening in said bar
45 vI0 to permit the insertion of the weather-strip 5,
Il represents the horizontal portion of the win
dow frame immediately adjacent to the lower
horizontal weather-strip 2, and Il the portion of
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. extend
ing thence downwardly, bent upon itself again at
28 and extending upwardly and again downward
ly 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 mem
ber of the weather-strip.
From the drawing, particularly Figure 2 there l
of', it will' be obvious that no water, dirt or accu
mulation of any kind is possible in the weather
strip 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'he- method 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 effec
tive closure, wherein the flange I6 presses against
the downwardly projecting member 24 on the im-.
proved weather-strip and causes a tight con
tact, 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 hori
zontal side, although the most important func
tion 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 ac
cumulate in the vertical or upper horizontal 35
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 pre~
ferred to use the same only on the bottom hori
zontal 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 weather
strip~ used on the bottom horizontal side as shown 45
in Figures 2 and 3 is essential and that the par
ticular form of the strips used in any of the other
the frame immediately adjacent to the horizontal three sides is optional.
v The lock bar I0 is made integrally with the win
upper metal strip 1. I5 represents the window
sash frame, I6 the flange at the bottom of -said dow frame I, having a tapered end II for tight 5_0
frame, I'I an L extending from a portion of the frictional contact with the handle of the sash
window frame I3, and I8 a vertical flange located - frame and said lock bar I 0 having a groove I2 for
on the said L Il, I9 is a downwardly projecting permitting the weather-strip 5 to be inserted
arm of the sash frame I5, 20 a casing for holding therein and thus serves to reenforce the weather
strip on the window frame.
2,1 17,978
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 con
tact 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 Pat
ent is:
l. A weather strip comprising two nested U
shaped members formed o! a single piece o! resil
ient metal bent upon itself, the inner U-shaped
portion of said nested U-shaped member adapted
1,5 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 extend
ing 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 resil
ient 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 ele
of said assembly, and with the other side of
said inner U-shaped member and the correspond
ing 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 cor
responding 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 long
er than the adjacent side of the inner U-shaped
member and having its edge reversely bent to
ward 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 be
tween the elements of said assembly.
3. In combination with a metal window as
sembly 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 mem 20
bers 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 pro
jecting edge flange with the joined sides of said
members on the face of said ilange remote from 25
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 ele
ments of said assembly, the joined sides of the ao'
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 35
said edges, and means connecting said overlap
ping portions of the weatherstripping.
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