Appeal No. 95-3288
Application 08/148,020
being primarily SiO and perhaps a minor amount of sintering
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aids.
The independent claim 1 is reproduced as follows:
1. A high pressure sodium vapor arc discharge lamp
which comprises a hermetically sealed, light transmissive,
vitreous outer envelope containing (i) a light transmissive,
hermetically sealed ceramic arc tube enclosing within an amalgam
of sodium and mercury, an inert starting gas and a pair of
electrodes in spaced apart relationship, (ii) a getter sensitive
to radiation emitted by said arc tube, said getter having been
flashed from a getter containing ring onto said envelope by means
of RF flashing, and (iii) an optically opaque, heat-resistant and
electrically insulative alumina shield located within said outer
envelope between said arc tube and said getter which shields said
getter from radiation emitted by said arc tube and which is
located close enough to said getter ring and in a manner such
that it would have interfered with said RF flashing of said
getter if it had been electrically conductive, said lamp also
having means for providing electricity to said electrodes.
The Examiner relies on the following references:
King 3,420,593 Jan. 7, 1969
Scott, Jr. et al. (Scott) 3,935,495 Jan. 27, 1976
Davis et al. (Davis) 3,979,633 Sept. 7, 1976
Osteen 4,137,484 Jan. 30, 1979
Charles et al. (Charles) 4,285,732 Aug. 25, 1981
Phillipp et al. (Phillipp) 4,221,993 Sept. 9, 1980
Strok 4,580,075 Apr. 1, 1986
Aelterman et al. (Aelterman) 4,910,427 Mar. 20, 1990
Carleton 5,008,583 Apr. 16, 1991
Claims 1, 5 and 23 stand rejected under 35 U.S.C.
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