Appeal No. 2000-2097 Page 11
Application No. 08/852,681
workpiece-engaging member. With regard to claims 2 and 5, we
note that the housing portions 30, 40 of Zurbuchen '251 are
shown as being formed of metal in the form of a plate.
Claims 1 to 3 and 5 are rejected under 35 U.S.C. § 102(b)
as being anticipated by Demurger.
Demurger discloses a plastic wrench with a metal insert.
As shown in Figures 1-4, the plastic wrench 1 includes a
handle 2 and a gripping head 3, 4, having a polygonal opening
5, 6 in which there is embedded an open metal insert 10, 11,
likewise polygonal. The walls 12, 13, 14, 15 of the insert
10, 11 forming the jaw are parallel and protrude slightly from
the lateral faces 16-19 of the openings 5, 6 of each gripping
head 3, 4. Demurger teaches (column 3, lines 54-61) that
In an advantageous embodiment, the main horizontal
surfaces of the inserts (10,11) are sandblasted, grooved
or the like, so as to facilitate adhesion to the plastic
during injection. In a variant, in order to facilitate
this adhesion, the inserts (10,11) have, in the vicinity
of the base (21), through holes (22,23,24), for example
of two to four millimeters in diameter, through which the
plastic passes during injection.
Page: Previous 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Next
Last modified: November 3, 2007