Appeal No. 98-2419
Application No. 08/675,193
In using the Hough device, as disclosed at col. 3, lines
1 to 9, the flexible flange 15 is deformed as it is pushed
into the base 21 of the broken light bulb, and then is further
deformed as the handle 11 is rotated, whereby the base 21 can
then be unscrewed from socket 22. Wickbergh, on the other
hand, discloses the use of teeth 5 on a screwdriver blade so
that the blade will not lift out of the screw head slot when
the screwdriver is turned (page 2, lines 30 to 44). While the
teeth of Wickbergh enhance gripping of the screw by the
screwdriver, as
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Last modified: November 3, 2007