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Патент USA US3027834

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April 3, 1962
2 Sheets-Sheet 1
Filed Feb. 2, 1959
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April 3, 1962
Filed Feb. 2, 1959
2 Sheets-Sheet 2
United States atent *0 l'llce
Ivan V. Abadjielf, 20 Bergin Lane, Worcester, Mass.
Filed Feb. ,2, 1959, Ser. No. 790,493
10 Claims. (Cl. 98-95)
This invention relates to a new and improved auto
matically actuated window ventilator, the principal object
Patented Apr. 3, 1962
as illustrated by the reference numeral 12. The frame
itself provides the usual stile groove at 14 for a lower
sash 16, this channel 14 being formed by a parting strip
18. There is also the usual groove 20 for the upper sash
The outer groove 20 is de?ned by an exterior strip
In general, the subject matter of the present invention
comprises a panel which is generally indicated at 26 in
FIG. 1.
This panel is provided with a stop means to
of the invention residing in the provision of a relatively 10 be described by which it is prevented from extending out
any farther to the left in FIG. 1 as shown in full lines
simple apparatus in the form of a panel which is used in
with the lower end thereof resting against the ‘
combination with a window particularly for instance of
parting strip 18. It is emphasized that in this position,
the device is merely loosely mounted and is capable of
tending outwardly at an angle, with both sashes being 15 being easily and quickly removed or re-inserted, and it
the double-hung sash type in which said panel is normally
located on its bottom edge on theinclined ledge and ex
raised and providing a passage for air circulation there
past, and including means associated with the sash and
does not interfere with the windows.
The normal light draft is indicated by the arrow 30 but
in the event of a sudden storm, the wind will tend to
normally maintaining the panel in said inclined position,
inwardly of the window. Under such a condition,
with the lower edge thereof extending inwardly and nor
mally held and abutted against the parting strip; said 20 the panel 26 will then be blown substantially in an in
ward direction, but of course it is stopped at the bottom
panel being loosely mounted in said position and capable
by the parting strip. There is nothing to stop the inward
of a combined sliding and pivotal action under the in
motion of panel 26 at the top portion thereof however,
?uence of an exterior breeze, so as to slide down the in
and therefore it will tend to pivot inwardly and at the
clined ledge while the'upper end of the panel is being
swingably moved inwardly to come to rest against the
parting strip or the lower edge of the lower sash which
is of course in raised position, to the end that rain, sleet,
snow, etc., will be effectively blocked from entering the
closed window; and this without the attention of anyone 30
to adjust the ventilator to close it or to close the window
in any way in the event of sudden snow or rainstorms
which may come up during the absence of the home owner
or during the night when, the homeowner is asleep.
same time the action invariably is to cause the lower edge
of the panel to slide down the incline of the exterior ledge
12 as is shown in dotted line position of the panel 26 in
FIG. 1.
This action automatically closes the ventilator from
the open position in solid lines in FIG. 1 to the closed
position shown in dotted lines therein, and therefore
this panel comprises a completely automatic self-closing
ventilator of the type described, preventing the entry
of snow, wind and rain, etc., in the absence of anyone
Other objects of the invention include the provision
of a device of the class described which is very simple 35 nearby to close the window in the event of a sudden storm
or in the event that the home-owner is sleeping and is
and inexpensive to manufacture and which is fool-proof
not awakened by the storm.
in action and provides an automatic safety device of the
As an illustration of the detailed construction of the
nature described.
reference is hereby made for instance to FIGS.
Other objects and advantages of the invention include 40 panel,
2 and 3. The panel 26 is shown as having a relatively
certain provisions, modi?cations and variations of the
wide lower edge 32 which is conveniently turned up as
shown in FIG. 3 as at 34, and this may be provided with
apertures 36 to let out condensation, etc.
in which
The top edge of the panel which is indicated at 38 is a
FIG. 1 is a sectional view through a window opening
45 little narrower than the lower edge, and midway of the
illustrating the device in its two positions of use;
side edges thereof, the panel is provided with cut-away
FIG. 2 is a view in front elevation of the panel;
portions or the like which form a pair of shoulders 40.
FIG. 3 is an edge View thereof;
These shoulders are important to the device and pro
FIG. 4 is a view in front elevation illustrating a modi—
vide the stops which hold the panel in the solid line open
FIG. 5 is the side View illustrating a modi?cation of 50 position of FIG. 1 by resting against the edges of the
strip indicated at 24 in FIG. 1. The ends of the lower
FIG. 4' as it would appear installed on a window-sill;
edge 32 abut the parting strips 18, one at each side of
FIG. 6 shows a further modi?cation;
the frame. However, these elements do not interfere
FIG. 7 is a sectional view through a window illustrat—
with the action of the device in any way, the top edge
ing a still further modi?cation;
38 of the panel coming to rest against the lower sash 16
FIG. 8 is a view in elevation, looking in the direction
as shown in dotted line position in FIG. 1, or the shoul
of arrow 8 in FIG. 7;
ders 49 abutting the parting strips in order to completely
FIG. 9 is an enlarged section on line 9—9 of FIG. 8;
the opening of the window.
FIG. 10 is a view'similar to FIG. 7 and illustrating a
If desired, there may be provided adjustable means as
device as will appear hereinafter.
Reference is to be had to the accompanying drawings,
further modi?cation;
shown by the panels 42 provided with suitable slots 44
FIG. 11 is a view in elevation, looking in the direction 60 and fasteners such as wing nuts 46 in order to provide
of arrow 11 in FIG. 10;,
for adjusting the height of shoulders 40 relative to the
FIG. 12 is a view similar to FIG. 7 illustrating a still
top edge 38. The position of these adjustable pieces 42
determines the angle of inclination of the panel 26 when
further modi?cation; and
FIG. 13 is a view in elevation, partly in section, looking 65 it is placed in the solid line position of FIG. 1, and by
this adjustment the opening allowing for ventilation as
in the direction of arrow 13 in FIG. 12.
indicated by arrow 30 may be made smaller or larger.
In illustrating the present invention, the same is shown
In addition, many other variations are possible includ
in FIG. 1 as applied to a conventional double-hung
ing that as shown in FIG. 6 for instance wherein the
window, although the invention is capable of application
to other types also.’ The interior sill of this window is 70 panel at 47, with suitable slots 48 and fasteners at 50,
etc. may be suitably adjusted for compensating for win
normally horizontal as indicated at 10 and the exterior
dow width variations, etc., and in order to bring the
ledge is slanted outwardly to the exterior of the building
shoulders 40 into proper alignment with the strips 24
lower sashes, the usual parting strips, outer strips form
and 18 as above stated.
ing grooves for the upper sash, and a downwardly ‘and
outwardly sloping ledge, said ventilator comprising a
panel having a top edge, and a bottom edge for disposi
tion von the sloping window ledge, shoulders at each side
of the panel, said shoulders including upper edge terminal
Other variations are possible for instance,sthe panel
which is indicated at 5-2 in FIG. 4 may be similar to that
at 26 but with the addition of rollers 56 suitably arranged
so as to make the panel ride down the ledge at 12 in the
event that the sill is rough from paint, etc.
In this con
nection, furthermore, if ‘desired, adjustable slides or
tracks 58 maybe mounted on ledge 12 by means of
portions adapted to abut the router strips of the window
frame, the panel being loosely held generally in the area
between the parting strips and the outer strips and being
fasteners 60 and adjustable screws or cam-type fasteners 10 capable of motion therein from a position wherein the
62. In this case, the rollers '56 will cause the panel 52
to slide down the incline easier and faster in the event
top edge of the panel extends relatively outwardly with
that it is desired to provide for such anti~friction means.
sliding and pivotal motion on the sloping Window ledge
Referring for instance to the construction as illustrated
in FIGS. 7, 8 and '9, the window construction itself is
the same as previously shown and described for instance
under in?uence of a gust of wind wherein the top edge
of the panel abuts the inner window sash and the lower
in FIG. 1, but in these ?gures the panel which is generally
indicated by the reference numeral 70‘ is provided with
respect to the bottom edge, the panel having a combined
edge of the panel slides down the sloping window ledge
to a position where it is stopped _by the outer strips, in
effect closing the opening provided by the open window,
adjustable edge pins or other elements 72, 72, there being
said shoulders having a width in combination with the
one at each opposite edge arranged for lateral adjust 20 panel greater than the distance between the said outer
ment in order to provide a fairly accurate ?t of the panel
edges between the parts of the outer grooves 20. This
may be done in various ways but one simple and con
venient construction is to provide a struck-up portion 74
in FIG. 9, screw-thread the interior portion thereof, and 25
2. The combination of claim 1 wherein the shoulders
include lower edge terminal portions having edges above
the bottom edge of the panel.
3. The combination of claim 1 including means on the
form the member 72 as a headed screw fastener as clearly
shoulders extending outwardly from the panel in coplanar
shown in FIG. 8. By this means, the screws may be
adjusted in-and-out and therefore a fairly exact ?t may
relationship therewith to engage and penetrate the win
dow frame.
4. The combination of a window frame construction
including ‘stile grooves and a downwardly and outwardly
sloping ledge, with a device comprising "a rectangular
panel having top, side and bottom edges, extensions on
be obtained by contact of the screws with the bottoms of
the (grooves 20, 20 so that the panel 70 will not fall out
while still acting as above described to shut the window
automatically. Thus the screws 72 act in place of shoul
ders 40, as previously described, in ‘case the shoulders
said panel along the opposite side edges thereof, said
extensions extending only part way of the height of the
In FIGS. 10 and 11, another modi?cation is possible 35 panel starting at the bottom edge and terminating short
where the head at 76 corresponding to that at 32 above
of the top edge thereof, the extension being dimensioned
described at the lower edge of panel 78 which is similar
to position the panel loosely in the stile ‘groove of the
to that at 26, may,‘ be ‘cut away vas indicatedat '80‘, thus
window frame between the parting strips thereof and the
leaving the “wings” indicated at 82 locating the panel 78
outer stile-forming strips, with the lower edge of the
are not contained within the grooves. _V
for proper clearance ‘in the grooves. _ The cuts at 80" may 40 panel slidingly mounted on the sloping ledge of the frame.
be made on a bevel in order to provide for easy entry of
5. The device of claim 4 including anti-friction means
the wings 82 into the respective grooves 20, 20.
at the lower edge of said panel.
Another modi?cation of the device is shown in FIGS.
6. The device of claim 5 wherein said anti-friction
12 and 13 wherein the construction may be the same as
means comprises rollers.
above described for instance with respect to FIGS. 1
7. The device of claim 5 wherein said anti-friction
through 4 inclusive, but in this case there is provided a
means comprises a rolled edge.
8. The device of claim 5 including track members se
pin, screw or roll indicated at 86, 86, there being one of
these at each side of the window in the bottom of the
groove 20, and these extend into the area of the side
cured to said ledge and said panel being slidably mounted
portions of the panel 26, so 'as to better position the
panel without interfering with its action. The pins 86
may be installed permanently and when the panel 26 is
in open position as shown in solid lines in FIG. 12, it
9. The device of claim 5 including track members se~
cured to said ledge and said panel being slidably mounted
on the track member.
on the track member, and adjustable means for said track
to adjust the inclination thereof relative to the horizontal.
10. The combination of a window frame construction
described closes the panel, the panel then wedges against
including stile grooves and a downwardly and outwardly
the pin as seen in dotted lines in FIG. 12 and it will 55
sloping ledge, with a window ventilator panel comprising
therefore clearly remain in this closed position until
a generally ?at plane member, projections at edges
deliberately manually actuated to be pulled up and re-set
thereof, said projections extending ‘along said edges and
in open position. In other words, the ventilating panel
providing for positioning of said panel in the grooves of
is easily closed as before by the gust of wind, but it
cannot ‘be opened again under any except human agency. 60 the frame, and means mounted in said grooves at the
lower edges thereof exteriorly of said panel and abutting
The pins 86 may be quite small and also they can be
said panel in closed position thereof, said means provid
made removable so that they can be taken out to drop
ing against motion of said panel by a gust of WindIin,
the upper sash 22 when this is necessary for any particu
either direction when the panel is in closed position, said'a;
lar reason.
"1M '1,
This device may be made of any convenient material
the stile grooves in the window-frame and projecting
such as plywood, sheet metal, etc., but if made of clear
toward each other,
plastic will not interfere with the view through the
References Cited in the ?le of this patent
Having thus described my invention and the advantages
thereof, I do not wish to be limited to the details herein
disclosed, otherwise than as set forth in the claims, but
Birkes _______________ __ Ian. 8, 1918
what I claim is:
Caldwell _____________ _._ Mar. 7, 1922
l. The combination of an automatic self-closing win
Liptrott _____________ __ June 11, 1935
dow ventilator and a window frame including upper and 75 l2,520,762
Gillen ______________ _._ Aug. 29, 1950
does not touch the pin but when a gust of wind as above
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