JOSEPH R TOMCAVAGE
Engineers in Lancaster, PA

4295077, Oct 13, 1981

Feb 14, 1980

6/121530

Don R. Carter - Lancaster PA
Claude E. Doner - New Providence PA
Fred G. Hammersand - East Petersburg PA
Joseph R. Tomcavage - Lancaster PA

RCA Corporation - New York NY

H01J 146, H01J 2110

313293

An improved high power electron tube has at least one grid electrode. The grid electrode is formed from a one piece cylindrical member, closed at one end, having an outside diameter, D. The cylindrical member has a plurality of arcuate, circumferentially elongated apertures extending therethrough. Each of the apertures has a length x and a width y wherein the length x is greater than width y, and wherein the length x is not greater than 0. 55 times the diameter, D, of the electrode. The width y, of each of the apertures is not greater than 0. 1 times the diameter D, of the electrode.

4456851, Jun 26, 1984

Mar 29, 1982

6/363298

Joseph R. Tomcavage - Lancaster PA

RCA Corporation - New York NY

H01J 188, H01J 1942

313250

An electron tube comprises an evacuated envelope including an anode forming a section of the envelope and a plurality of alternatively-disposed metallic and insulating annular members. The anode includes an anode ring having a plurality of slots formed therein to provide stress reduction. The anode ring is attached to one of the metallic members thereby providing a low impedance electrical interconnection therebetween.

3976909, Aug 24, 1976

Jul 11, 1975

5/595287

Joseph Richard Tomcavage - Lancaster PA

RCA Corporation - New York NY

H01J 115, H01J 1908

313341

A first array of spaced wires is in angular contact with a second array of spaced wires so as to from a wire mesh. The first array has a fewer number of wires than the second array.