Getter connected to cathode ray tube high voltage contact

Claim 1

A display tube comprising an envelope having a conical portion terminating in a generally cylindrical neck and a window portion secured to the end of said conical portion opposite said neck and having a display screen on the inner surface thereof, an electrode system positioned in said neck for generating at least one electron beam directed onto said display screen, an electrically conductive layer extending between said display screen and said electrode system over the inner surface of said conical portion, at least a portion of said layer near said electrode system being an electrical resistive layer and electrically connected to the conductive layer, a high voltage contact provided in said conical portion between said window portion and said electrode system, a getter and means for detachably mounting, in said envelope, said getter inserted into said conical portion through said neck after said window portion is secured to said conical portion and prior to positioning said electrode system in said neck, said mounting means including a connecting member affixed to a wall of said conical portion and projecting into the interior of said envelope, said connecting member having a gradually widening end with a largest transverse dimension D and a smallest transverse dimension d, and a resilient metal strip affixed to said getter, said strip having a first aperture of a dimension larger than said dimension D, a second aperture of dimension A, and an opening of width b extending between said first and second apertures in a manner such that D>A>b>d, so that said end of said connecting member in cooperation with said second aperture form a coupling for detachably mounting said getter in said envelope.

Claim 11

A device for connecting a getter in a picture display tube in which the getter is inserted via the tube neck and is secured so as to be detachable to a connection member projecting internally from the tube wall by means of a resilient connection strip, characterized in that the device comprises a strip of resilient material which at one end is secured to a rigid member and at the other end has a holder on which a number of studs are present between which the connection strip of the getter can be clamped temporarily and which holder comprises means to detach the connection strip from the holder, which device has an abutment limiting the depth of insertion of the strip in the tube and furthermore has a cable which is guided along the strip and is secured near the holder to bend the strip and thus to transport the getter which is temporarily secured to the holder towards the connection member projecting internally from the tube wall.

Claim 12

A device for connecting a getter in a picture display tube in which the getter is inserted via the tube neck and is secured so as to be detachable to a connection member projecting internally from the tube wall by means of a resilient connection strip, characterized in that the device comprises a strip of resilient material which at one end is secured to a rigid member and at the other end has a holder on which a number of studs are present between which the connection strip of the getter can be clamped temporarily and which holder comprises means to detach the connection strip from the holder, which device has an abutment limiting the depth of insertion of the strip in the tube and furthermore has a cable which is guided along the strip and is secured near the holder to bend the strip and thus to transport the getter which is temporarily secured to the holder towards the connection member projecting internally from the tube wall.