Appeal No. 98-1354
Application 08/218,507
adjustable chuck clamped onto the input shaft 51 of a right
angle drive slide 44 (column 3, lines 11 through 18). The
output shaft 52 of the slide 44 receives a circular cutter 53
for cutting a tube held between notches 28 and 33 on the main
and secondary frames, respectively.
Unlike appellants (brief, page 11), we are of the view
that one having ordinary skill in the art would have
understood the pipe cutter of Hanaway as being operable and
not merely a concept. Clearly, those versed in the art would
have fairly understood the right angle drive slide as being
any known device for converting a rotary input into a right
angle rotary output.
We note that appellants acknowledge the use of batteries
to drive motors as well known, but question where such a
battery could be placed on the pipe cutter of Hanaway (brief,
page 11). We have no doubt, however, but that those having
ordinary skill in this art would have been quite capable of
mounting a battery to the main frame of Hanaway to supply
power to the drive motor,
7
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007