Appeal No. 2002-0049 Page 11
Application No. 09/317,538
otherwise deformed. This manual operation is time consuming and largely
dependent on the operator's skill.
Based on the foregoing, it is the general object of the present invention to
provide a method for preventing the advancing work material from catching on
the stripping and blanking tools that overcomes the problems and drawbacks of
prior art methods.
It is a more specific object of the present invention to provide a method for
relieving the edges defined by the stripping and blanking tools that results in
minimum material removal on the tools, and deformation of the blank.
As noted above, Dombrowski teaches that automated deburring systems which utilize a
deburring tool to machine part edges including a computer controlled robotic arm were
developed to overcome problems associated with manual deburring. Thus, it is our
view that Dombrowski falls into the latter category of the Wood test, and logically would
have commended itself to an artisan's attention in considering the appellant's problem.
Thus, we conclude that Dombrowski is analogous art.
Claim 1
We sustain the rejection of claim 1 under 35 U.S.C. § 103.
Claim 1 reads as follows:
A method for selectively relieving sharp edges in a tool used in die cutting
web or sheet-type work material, comprising the steps of:
providing a machining apparatus for supporting said tool thereon, said
machining apparatus including a rotary cutter mounted thereon and moveable
relative to said tool;
providing a controller having machine readable shape data corresponding
to said tool stored therein;
Page: Previous 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Next
Last modified: November 3, 2007