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-& GENERAL CLEANING.
220
Jam 7, 1947.
o. H. BERGER '
2,413,854
WINDOW CLEANER
Filed March 29, 1944
K 32
OSCAR H. BERGER,
UUUIUH
61 GENERAL CLEANlNG.
220 Patented Jan. 7, 1947
2,413,854 -
UNITED STATES PATENT OFFICE
2,413,854
WINDOW CLEANER
Oscar H. Berger, Washington, D. 0.
Application March 29, 1944, Serial No. 528,592
2 Claims. (Cl. 15-220)
1
2
The invention relates to window cleaners, and
controlled by a lever l5, here shown as of channel
has for one of its objects to provide a device of
cross section (see Fig. 3) to embrace the arm H
this character which will be simple in construc
on which it is pivotally mounted as at It. The
said lever is formed at its top with a grip portion
tion, comparatively inexpensive to manufacture,
l1 and at its lower end with angularly disposed
and more e?icient in use than those which have
been heretofore proposed.
extensions l8 which carry a pin l9 which rides
More particularly, the cleaner is of the type
in slots 20 provided in ears 2| of a bracket 22
wherein opposed complemental cleaning elements
rigidly carried by the arm Ill. As indicated in
are adapted to operate simultaneously upon op
Fig. 1, by moving the lever [5 on its pivot l6 to
posite surfaces of a window pane, and a further 10 and from the broken line position shown in said
?gure, the arm [0 may be correspondingly swung
object of the invention is to provide a construc
tion whereby cleaning of the perimetric portions
from and toward the arm ll.
of the pane, where it meets and is supported by
At their upper ends the arms l0 and H are
formed for readily detachable connection either
the sash members, may be insured.
A still further object of the invention is to 15 to extension members 25 or directly to the clean
provide a manually operable window cleaning de
ing heads 26. The detachable connections here
vice of the class described the operation of which
shown are more or less conventional, comprising
will be less fatiguing upon the operator than
socket members 21 carried by the extension mem
bers 25, and similar sockets 28 carried by the
that of similar prior devices.
With the above and other objects in view, which 20 heads 26, either of which sets of sockets may slid
ably receive and frictionally engage the upper
will appear as the description proceeds, the in
ends of the arms Ill and II. Thus, for larger
vention resides in the novel details of construc
windows the extension members 25 may be in
tion, and novel combinations of parts, more fully
terposed between the arms H), II and the clean
hereinafter disclosed and particularly pointed out
ing heads 26, while for smaller windows the said
in the appended claims.
Referring to the accompanying drawing form
extension pieces may be removed and the heads
ing a part of this speci?cation, in which like
26 mounted directly on the ends of the said arms.
The cleaning heads are duplicates, each com
reference characters designate like parts through
prising a spindle 30 extending upwardly from the
out the views:
connecting member 28 and having a block_like
Figure 1 is a side elevational view of a typical
member 3| rotatably and slidably mounted upon
embodiment of the invention, illustrating it in
it, to the opposite side faces of which block the
operative position in relation to a window pane;
cleaning elements 32 are readily detachably se
Fig. 2 is an elevational view of the device as
cured. One of the said cleaning elements may 2’
seen from the right of Fig. 1, the view being partly
be a sponge 34, while the other element prefer
in section upon approximately the plane indi
ably comprises a pad of felt, napped or hooked
cated by the line 2—2 of Fig. 1;
Fig. 3 is an enlarged horizontal sectional view,
fabric, or the like. The said sponges and pads
may be alternatively positioned to engage the sur
on the plane indicated by the line 3-3 of Fig. 1,
faces of a window pane 36 by turning the block
looking down;
Fig. 4 is a perspective view of one of the block 40 3| on the spindle 30 to bring the desired element
like members which mount the cleaning ele
adjacent the pane, as will be readily understood.
The block may be retained in position to present
ments; and
Fig. 5 is a rear elevational view of one of the
either element to the pane by a suitable detent,
cleaning elements.
such for example as a pin 31 carried by the
As will be understood from the said drawing, 45 spindle 30 and engageable in a groove or recess
the device comprises a U-shaped frame adapted
38 formed in the adjacent face of the block. A
to straddle a sash and pane from either the top
spring 39 interposed between the opposite face
or the bottom, which frame includes a pair vof
of the block and a nut 40 threaded on the spindle
spaced parallel arms I0 and H, the latter of
yieldingly maintains engagement between the pin
which is substantially L-shaped with its short leg 50 and groove.
l2 being provided with a hinge connection l3 by
As here shown, the means for readily detach
ably mounting the cleaning elements 32 on the
means of which the lower end of the arm I0 is
. pivotally connected thereto for swinging move
block member 3| comprise keys 4| carried by and
projecting from the opposite side faces of the
ments of said arm toward and from the com
panion arm H. Such movements are effected or 65 said block, and slots 42 formed in the rear plates
2,413,854
33 of the cleaning elements. As will be readily
understood, in assembly the heads of the keys 4|
4
elements 32 are then turned through an angle of
90° to position the slots crosswise of the key heads.
the bolt of which is adapted to engage a serrated
lug 5| carried by the frame arm I l and project
ing through an opening 52 in the said lever.
Thus, when the parts have been brought to the
full line positions of Fig. 1, they will be latched
The plates 33 may be provided with apertures
therein, and substantially the only muscular
' are introduced through the said slots, and the
or recesses 43 adapted to be engaged by the pins
effort required of the hand grasping the grip I‘!
44 in this position, whereby unintentional turn
will be that necessary to traverse the device over
ing of the elements 33 and disengagement of the
the pane.
parts may be prevented. The connection is such 10
While one form of the invention has been illus
as to permit slight play or wobble of the cleaning
trated and described, it will be obvious that those
elements whereby they may accommodate them
skilled in the art may vary the details of con
selves to the pane surfaces as they are moved
struction as well as the precise arrangement of
thereover.
parts without departing from the spirit of the
A U-shaped ball 45 is pivotally attached as at 15 invention, and therefore it'is not wished to be
46 to the arms Ill and H, and serves as a means
limited to the above disclosure except as may be
for assisting in moving the cleaner over the pane
required by the claims.
36. That is to say, with the device grasped in
What is claimed is:
one hand at the grip 11, thereby squeezing the
1. In a window cleaner, the combination of a
sponges 34 or pads 35 against opposite surfaces 20 U-shaped frame having alined arms adapted to
of the pane 36, movement over the pane, particu
straddle a pane; cleaning elements carried by
larly in lateral directions, may be facilitated by
said arms for engagement with opposite surfaces
grasping the bail 45 in the other hand and push~
of the pane, said frame being manipulatable by
ing or pulling longitudinally of the bail. By thus
one hand of the operator to traverse said clean
distributing the work between the two hands of 25 ing elements over the pane surfaces; and a bail
the operator, operation of the cleaner is appre
like member adapted to straddle the pane and
ciably less tiring than it would be were the move
having its ends pivotally attached to the respec
ments accomplished solely by the hand grasping
tive frame arms, said member being operable by
the grip H.
the other hand of the operator to apply additional
The ball also affords a means whereby the 30 traversing force to the arms in the plane of the
heads 26 may be manipulated to insure cleaning
pane surfaces and to vary their alinement where
of the perimetric portions of the pane. That is
by to insure engagement of the cleaning elements
to say, should the heads get out of substantial
with the peripheral portions of the said surfaces.
alinement whereby the cleaning element on one
2. In a window cleaner having a frame com
of the heads may fail to get into the corner where
prising a pair of‘ pivotally connected spaced arms
the pane meets the sash frame, such element may
adapted to straddle a pane, and cleaning elements
be manipulated and forced into the corner by
carried by said arms for engagement with oppo
pushing or pulling upon the bail. Thus, complete
site surfaces of the pane, said frame being oper
cleaning of the perimetric portions of both sur
able by one hand of the operator to traverse the
faces of the pane may be insured.
cleaning elements over the pane surfaces: a bail
The bail 45 is constructed of material having
pivotally attached to said arms, operable by the
some resilience, and in its free state its side mem_
other hand of the operator to apply additional
bers 41 preferably diverge somewhat, in a direc
traversing force to the arms in the plane of the
tion away from the cross bar 48. Thus, the bail
pane surfaces and to vary the alinement of the
may further serve as a spring tending to move
arms, said bail being resilient and tending to
the arm l0 and lever I5 to the broken line posi
spread the arms from one another; and a lever
tions of Fig. 1; but when the arm II and the
carried by one of the arms and operatively con
grip ll of lever l5 are grasped in the hand of the
nected to the other arm, said lever being oper
operator, the parts will be forced to the full line
able in grasping the frame with said ?rst named
positions of Fig. 1 and the cleaning elements 34 50 hand, to draw the arms toward one another
or 35 squeezed against the pane.
against the spreading action of the bail.
To further relieve strain upon the operator, 2.
spring catch 50 may be provided on the lever l5,
QSCAR H. BERGER.
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