Zenith Electronics Corporation

Zenith Radio Corporation

Thomas P DeFranco

Lawrence W Dougherty

Armando V Marino

Alfred Adamski

A conductive connector arrangement for use in a CRT comprising a funnel having an internal Aquadag coating, a faceplate having a luminescent screen deposited upon its display surface, a ring formed of a non-conductive material having at least one recess thereon and interposed between the funnel and faceplate for supporting a mask in registration with the screen and an internal magnetic shield disposed within the funnel. The connector arrangement serves to establish the Aquadag, the screen, the mask and the shield at a common electrical potential. To this end the connector comprises a clip formed of a resilient conductive material and configured for retention in the ring recess. A first contact supported by the clip effects a conductive engagement between the screen and the clip. A second contact, also supported by the clip, effects a conductive engagement between the funnel coating and the clip. An electrical connection is effected between the clip and the mask. Finally, a mechanical and electrical connection is effected between the clip and the magnetic shield. In this manner, the screen, the Aquadag, the mask and the magnetic shield are established at a common potential by a unitary self-supporting arrangement.2CRT61R

Internal electrical connector for a tension mask tube

Cleansing-scavenging means and method are disclosed for removing detritus from the inner surface of the neck of a cathode ray tube during manufacture. The means comprises probe means for insertion into the neck, and scrubbing means extending from the probe means for dislodging detritus. An expansible and contractible scavenging member is attached to a first end of the probe means. The member has a peripheral surface conformable to the inner surface of the neck for exerting, when expanded, outward scavenging pressure against the inner surface of the neck. Handle means are attached to the second end of the probe means for manipulating the probe means, with associated means providing for expanding and contracting the scavenging member. After the detritus is dislodged from the inner surface of the neck by the scrubbing means, and as the probe means is withdrawn from the neck, the scavenging member when expanded scavenges the detritus from the neck.

Growing community of inventors

Norridge, IL, United States of America

Thomas P DeFranco