ACCESSOIRE LAVEUR POUR ESSUIE-GLACE

WIPER WASH ATTACHMENT

Abrégé anglais

ABSTRACT OF THE DISCLOSURE
A spray of wash water is delivered to the central area of
a windshield wiper blade by an attachment incorporating a pump
which is operated by movement of the wiper back and forth about
a pivot in the window frame. Air is also delievered to such
area by a fitting having a Y-valve for air and/or wash water
under the control of the wiper wash button of the auto.

Revendications

The embodiments of the invention in which an exclusive
property or privilege is claimed are defined as follows:
1. A wiper wash attachment for auto windshield wipers
that are oscillated over the windshield, comprising
a spray head carried by such wiper, and
a pump also carried by such wiper, which is operated
by the oscillating action of the wiper to supply washing fluid
to said spray head.
2. A wiper wash attachment as defined by claim 1, in which ¦
said pump is secured to said wiper by a flexible clamp,
and comprises a plunger having a rod the outer end of which is
pivoted to the frame of the windshield in laterally spaced
relation to the wiper pivot, and
the cylinder of said pump is connected to a wash water
supply tube by a one-way flap valve.
3. A wiper wash attachment as defined by claim 2, in which
said tube forms part of a Y-valve the other part of
which is an air tube.
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Description

10776~7
SPEC~FICA~ON
This invention relates to wiper~wash devlces, and more
particularly to windshield wiper wash attachments.
Schemes are known ~or delivering a spray of wash water
through or ad;acent the wiper blade of automobile windshield
wipers to assist in cleaning the latter. But such schemes are
complicated and therefor expensive~
The main object o~ this invention is to provide an auxiliary
attachment ~or such purpose that can be used with existing wind-
shield wiper equipment and which iB simple and economical to
make and use.
According to the invention a windshield wash and/or a~r
attachment is provided which includes a pump that is operated by
the conventional action of the wiper, to deIiver the cleaning
fluid to a spray located in the central area of wiping to keep
the windshieId clean and ~ree of smudging.
In the drawings which illustrate embodlments o~ the in-
vention,
Fig. 1 is a fragmentary perspective view of one embodiment,
Fig. 2 is an enlarged view in section o~ the pump,
Fig. 3 is a ~ragmentary perspective view of a detail of
I the ~ash/air Y-valve~
Fig. 4 is a similar view thereo~.
The wiper wash attachment illustrated comprises a pump 10
~i secured to a conventional windshield wiper 12 by a flexible
clamp 14. The pump lO includes a plunger 16 having a rod 18
the outer e o~ whIch cons1sts of an eyelet 20. The eyelet 20
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1077657
is connected to the frame 22 of windshield 24 by a pivot pin 26
in spaced relation to the pivot 28 of wiper arm 2~. Thus, as
the wiper 12 oscillates conventionally, the pump 10 is operated.
The pump 10 outlet is connected to a flexible tube 30
which del:ivers the so-pumped washing fluid to a spray head 32
in the central area of the action of wiper blade 34. A flexible
tube 36 conducts the fluid from the washing fluid container or
reservoir 38 of the automobile to an inlet in the pump 10 by
~ay of a one-way flap valve 40.. The tube 36 forms part of a
Y-valve 42, the other part of which includes an air tube 44.
Air to the tube 44 is controlled by the wiper wash button, not
shown, of the car. Thus, air and/or washing fluid can be sup-
plied to the spray head 32 for more efficiently and effectively
ass~sting th~ wiper 12 in clean~ng wirldshielc 24.
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