Separation of components of cathode ray tubes

Details Separation of components of cathode ray tubes Separation of components of cathode ray tubes

1986-02-14

1990-08-28

Rowan, Kurt

Electric lamp or space discharge component or device manufacturi

Process

Repairing, converting or salvaging

H01J 950

Patent

active

049521853

ABSTRACT:
In a method of separating a glass panel and a glass body of a cathode ray tube, the panel and body being secured together by an adhesive that comprises a frit and a binder that is susceptible to attack by nitric acid, the tube is at least partially immersed in a bath containing nitric acid such that at least the junction of the panel and body is immersed in the acid, and the acid is subjected to ultrasonic excitation, for example by transducers disposed in the acid in the bath.

REFERENCES:
patent: 2884312 (1959-04-01), Kuryla
patent: 3234047 (1966-02-01), Olson
patent: 3823080 (1974-07-01), Speigel
patent: 4045243 (1977-08-01), Wohlert
patent: 4248232 (1981-02-01), Engelbrecht
patent: 4537511 (1985-08-01), Frei

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