Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Reexamination Certificate
2000-08-08
2001-11-13
Graham, Gary K. (Department: 1744)
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
C015S250480, CD12S219000
Reexamination Certificate
active
06314608
ABSTRACT:
BACKGROUND
The invention relates to a wiper blade for a windshield wiper blade refill.
In general, as shown in
FIGS. 5 and 6
, a windshield wiper blade carrier may have a wrap-around metal claw
20
that holds a wiper blade refill
900
. The refill
900
has a wiper blade
910
, which typically is made of rubber, mounted within a plastic flexor
920
. The flexor
920
mates with the claw
20
to attach the refill
900
to the carrier
10
. The wiper blade
910
includes a crown
930
, a neck
940
and a bumper
950
that secure the blade
910
in the flexor
920
. The wiper blade
910
also has a hinge
960
that bends to allow a body portion
970
to move relative to the rest of the blade
910
as the wiper moves back and forth across the windshield. A lip
980
makes contact with the surface of the windshield to remove water from the windshield.
SUMMARY
In one aspect, generally, the invention features a wiper blade that has a crown at the top. A windshield-engaging lip is located at the bottom of the wiper blade. A neck extends from the crown toward the lip, and the neck increases in width in the direction away from the crown.
Embodiments may include one or more of the following features. The crown may be trapezoidal in shape. The neck may include sides that form an angle of greater than six degrees. The wiper blade may include a bumper that extends from the neck and that has an underside surface. A hinge may extend from the underside surface of the bumper. A body may extend from the hinge and may be configured to pivot about the hinge. The windshield-engaging lip may. be formed at the bottom end of the body.
A wiper blade refill may include the wiper blade described above and a flexor. The flexor may have a top portion that conforms in shape to the crown of the wiper blade. The flexor also may have a neck portion that conforms in shape to the neck of the wiper blade. The flexor may include a bottom edge strip that may extend from the bottom end of the flexor. The portion of the flexor that corresponds to the underside surface of the top portion of the wiper blade may be a flat surface that is parallel to the bottom edge strip.
In another aspect, a wiper blade refill is configured to be installed in the wrap-around claw of a wiper blade carrier. The wiper blade refill includes a wiper blade that has a top portion and a neck portion. The wiper blade refill also includes a flexor that conforms in shape to the top and neck portions of the wiper blade. The neck portion of the wiper blade increases in width in the direction away from the top portion of the wiper blade.
Embodiments may include one or more of the following features. The top portion of the wiper blade may be trapezoidal in shape. The neck portion may include sides that form an angle of greater than six degrees. The top portion of the wiper blade may be configured to be positioned within the wrap-around claw.
In another aspect, a flexor is configured to mate with a wiper blade that has a crown at the top, a windshield-engaging lip at the bottom, and a neck that extends from the crown toward the lip. The neck increases in width in the direction away from the crown. The flexor includes a top portion that conforms in shape to the crown of the wiper blade, a neck portion that conforms in shape to the neck of the wiper blade, and a bottom edge strip.
Embodiments may include one or more of the following features. The portion of the flexor that corresponds to the underside surface of the crown of the wiper blade may be a flat surface that is parallel to the bottom edge strip. The flexor may be trapezoidal in shape.
Other features and advantages will be apparent from the following detailed description, including the drawings, and from the claims.
REFERENCES:
patent: 1853715 (1932-04-01), Anderson
patent: 3820188 (1974-06-01), Moorhead et al.
patent: 4649592 (1987-03-01), Beneteau
patent: 4722112 (1988-02-01), Schaub et al.
patent: 5423105 (1995-06-01), Scott
patent: 6163922 (2000-12-01), Fisher et al.
patent: 2101271 (1973-06-01), None
patent: 4035336 (1992-05-01), None
patent: 1319976 (1973-06-01), None
patent: 226459 (1989-09-01), None
Fisher Brian A.
Stratton Donald W.
Cooper Automotive Products, Inc.
Graham Gary K.
Reising Ethington, Barnes, Kisselle, Learman & McCulloch, P.C.
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