Appeal No. 1997-4175
Application No. 07/805,703
This is a decision on appeal from the final rejection of
claims 20 through 23, all the claims pending in the
application.
The invention is directed to a structure for transferring
an amalgam into an electrode support tube at the end of an arc
tube.
Independent claim 20 is reproduced as follows:
20. An arc tube assembly comprising:
a light-transmissive arc tube having an end cap sealed to
each end thereof;
an electrode assembly sealed in each of said end caps,
each electrode assembly comprising an electrode attached to an
electrode support tube, each electrode support tube having a
generally cylindrical wall, at least one of said electrode
support tubes having an opening adjacent to the respective end
cap, said opening comprising a slot in the wall of said
electrode support tube, said slot having one edge depressed
relative to the other edge so as to define a concave surface
adjacent to said slot, and
a chemical fill in an interior region of the electrode
support tube having said opening.
The examiner relies on the following references:
Delembre et al. (Delembre) 3,716,744 Feb. 13,
1973
Wesselink et al. (Wesselink) 4,157,485 Jun.
5, 1979
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