Method of separating a funnel and flangeless faceplate of a colo

Details Method of separating a funnel and flangeless faceplate of a colo Method of separating a funnel and flangeless faceplate of a colo

1976-04-01

1976-12-14

Kellogg, Arthur D.

Glass manufacturing

Processes

With destruction or delamination of transitory attached or...

65 28, 225 2, C03B 3306

Patent

active

039973115

ABSTRACT:
This disclosure depicts, for use in salvaging parts from a color television cathode ray tube of the type having a glass bulb comprising an approximately rectangular, flangeless, curved faceplate and a funnel having a convex seal land, a novel method for separating the funnel and the faceplate. The funnel seal land mates with a concave rear surface of the faceplate to define a contoured sealing interface. The faceplate is sealed to the funnel with a frit material located at the sealing interface. The method comprises establishing the bulb at a predetermined initial temperature; concurrently down-shocking (effecting a sudden cooling of the surface of) the faceplate and the corner regions of the funnel for a predetermined brief period of time, causing separation at the sealing interface of the faceplate from the corner regions of the funnel; then down-shocking the side regions of the funnel near the sealing interface for a predetermined brief period of time while continuing to down-shock the faceplate and the corner regions of the funnel, to cause a complete separation of the faceplate from the funnel at the sealing interface.

REFERENCES:
patent: 2884312 (1959-04-01), Kuryla
patent: 3390033 (1968-06-01), Brown
patent: 3894858 (1975-07-01), Rogers

Affiliated with

Also associated with

Rating

Method of separating a funnel and flangeless faceplate of a colo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of separating a funnel and flangeless faceplate of a colo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of separating a funnel and flangeless faceplate of a colo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1342543