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Патент USA US2137924

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I '
mm 22, 193%.
W. SCHICKEDANZ
2,137,924
WINDOW VENTILATOR
Filed April 12, 1938
In ventor
Patented Nov. 22, 1938
2,137,924
UNITED STATES
PATENT oFFicE
2,137,924
WINDOW VENTILATOR.
William Schickedanz, Philadelphia, ‘Pa.
Application April 12, 1938, Serial No; 201,573
4 Claims.
This invention ‘relates to new and useful im
provements in ventilators, especially adapted for
‘use in windows.
The principal object of the present invention
a 5
‘is to provide a ventilator which in construction
will eliminate drafts.
Another important object of the invention is
toprovide a window ventilator in which the air
inlets can be readily adjusted to vary the pas
sage of air.
Still another important object of the inven
tion is to provide a ventilator including adjust
able air inlet means wherein the ventilator is so
constructed that it can be adjusted without
(CI. 98-99)
ally disposed ?nger M which is disposed iriwa‘rd- »
ly through the short ‘slot l5 jini‘the jse‘c‘t‘iont
and then laterally against the inside of the sec
tion 5.
‘
The rotor or disk I2 is formed with ‘openings 1
which are registrable with the openings l0 there
being certain ‘openings in the disk'wh‘ich ‘will
register with the openings ‘l0 when 1the ?nger
14 has been moved to one end ‘of the ‘slot
and other openings which will register with
openings I0 when the ?nger I4 is moved to
opposite end of the slot l5,
It will be observed in Figures 1 and 6, that
1l5,
the 10
the
the
air inlet structure 9 of the section 6 is con
structed somewhat differently from the struc 15
These and Various other important objects and ‘ tures l and 8 in that the section is provided with
advantages of the invention will become apparent an outwardly bulged portion de?ning a shallow
pocket I B and the wall of the pocket adjacent
to the reader of the following speci?cation.
the disk I1 is slotted to permit the straight ?nger
In the drawing:I8 to extend into the pocket It. Thus the in 20
Figure 1 represents a side elevational view of
r the variable air inlet means interfering.
Figure 2 is a vertical sectional View taken sub
stantially on the line 2--2 of Figure 1.
Figure 3 is a fragmentary detailed sectional
view taken substantially on the line 3-3 of Fig
ner side of the ?nger I8 is ?ush with the inner
side of the section 6 so that there will be no
interference with the section 5 in the event the
ventilator must be made so small as to require
the inner end of the section 5 to pass over the 25
ure 1.
structure 9.
Figure 4 is a fragmentary detailed sectional
View taken substantially on the line 4-4 of Fig
The structure 9 consists of the perforations IS
in the section 6 and the perforations 20 in the
rotor or disk I‘! and in addition, the guide lugs
2| corresponding to the guides I3 of the struc 30
- the device.
ure 1.
30
Figure 5 is a fragmentary detailed sectional
view taken substantially on the line 5—5 of Fig
ure 1.
’
Figure 6 is a fragmentary detailed sectional
view taken substantially on the line 6—5 of Fig‘
ure 1.
Referring to the drawing wherein like numer
als designate like parts, it can be seen that the
ventilator consists broadly of a pair of slidably
connected sections generally referred to by nu
40 merals 5 and B. The section 5 is provided with
45
tures ‘l and 8.
,
~
The ends and side edges of the sections 5 and 6
are made of tubular form, the tubular edge por
tions of the section 6 being of larger cross section
than the tubular edges of the section 5 so that
these tubular edge portions can be brought into
telescopic relation, This is clearly illustrated
in Figure 1.
While the foregoing speci?cation sets forth the
invention in specific terms, it is to be understood 40
a pair of adjustable air inlet structures generally
referred to by numerals ‘l and 8, while the sec
tion 6 is provided with the variable air inlet
that numerous changes in the shape, size and
materials may be resorted to without departing
from the spirit and scope of the invention as
structure 9.
claimed hereinafter.
Having described the invention, what is claimed 45
Each of the variable. air inlet structures 1 and
8 consists of a plurality of rows of ?ne perfora
tions l0 arranged concentrically with respect to
the pivot member II which secures the rotor l2
in place to the outside of the section 5.
The section 5 is struck to provide a pluraliay
of ears l3 bent outwardly and across the outer
side of the rotor or disk l2 to serve as guides
therefor and hold the same snugly against the
outside of the section 5.
Each of the disks I2 is provided with a radi
as new is:—
1. A window ventilator comprising a pair of
complementary extensible sections, each of said
sections having perforations therein, a rotatable
closure on each of the sections, each of the clo 50
sures being formed with openings registrable
with the perforations, each of said closures pro
vided with a lateral ?nger engageable member,
one of the sections being formed with a depres
sion in which the ?nger engageable member of 55
2
2,137,924
the corresponding closure is disposed and opera
tive to avoid the other section when the latter
is slid over the last-mentioned closure.
2. A window ventilator comprising a pair of
complementary extensible sections, each of said
sections having perforations therein, a rotatable
closure on each of the sections, each of the clo
sures being formed with openings registrable with
the perforations, each of said closures provided
10 with a lateral ?nger engageable member, one of
the sections being formed with a depression in
which the ?nger engageable member of the cor
responding closure is disposed and operative to
avoid the other section when the latter is slide
15 over the last~mentioned closure, the last-men
tioned closure being on the side of its section op
posite to the depression, the complementary sec
tion being formed with a slot through which the
avoid the other section when the latter is slid
over the last-mentioned closure, the last-men
tioned closure being on the side of its section
opposite to the depression, the complementary
section being formed with a slot through which 5
the ?nger engageable member projects, said slot
being located in one wall of the depression.
4. A Window
complementary
sections having
closure on each
ventilator comprising a pair of
extensible sections, each of said
perforations therein, a rotatable 10
of the sections, each of the 010
sures being formed with openings registrable with
the perforations, each of said closures provided
with a lateral ?nger ‘engageable member, one of
the sections being formed with a depression in
which the ?nger engageable member of the cor
responding closure is disposed and operative to
avoid the other section when the latter is slid
?nger engageable member projects.
over the last-mentioned closure, said sections
3. A Window ventilator comprising a pair of
complementary extensible sections, each of said
being formed with slots through which the ?nger
engageable members project, said slots being of
‘ sections having perforations therein, a rotatable
such extent as to afford registration of the per
closure on each of the sections, each of the clo
forations when the ?nger engageable members
sures being formed with openings registrable with
the perforations, each of said closures provided
with a lateral ?nger engageable member, one of
the sections being formed with a depression in
which the ?nger engageable member of the cor
responding closure is disposed and operative to
have been moved to either end of the slot and to
afford unregistration when the ?nger engageable 25
members have been moved to a mid-point between
the ends of the slots.
WILLIAM SCHICKEDANZ.
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