H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/35.35
H01J 29/02 (2006.01) H01J 29/92 (2006.01) H01J 29/94 (2006.01)
Patent
CA 1098577
ABSTRACT: Disclosed is a picture display tube comprising an envelope having a display window, a cone and a neck. An electrode system to generate at least one electron beam is mounted in the neck and an electrical resistive layer extends over an internal wall portion of the envelope to a point near the electrode system. The tube comprises a getter which is detachably secured to a connecting member projecting internally from the wall of the tube at a location remote from the electrode system by means of a resilient connection strip, The portion of the connection member projecting from the tube wall has a gradually widening end having a largest transverse dimension D and a smallest transverse dimension d and the connection strip of the getter has a first aperture whose dimensions are larger than the dimension D. The first aperture debouches via a passage of width b into a second aperture of dimensions A in a manner such that D> A> b> d, so that the gradually widening end of the connecting member in cooperation with the second aperture forms a detachable coupling.
300019
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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