Method of and apparatus for grit blast damage free score initiat

Details Method of and apparatus for grit blast damage free score initiat Method of and apparatus for grit blast damage free score initiat

1981-08-03

1984-01-24

Yost, Frank T.

Severing by tearing or breaking

Methods

With preliminary weakening

83 14, 83 22, 83168, 83863, 83880, 83886, 225 96, 225103, C03B 3302

Patent

active

044271425

ABSTRACT:
A damage-free score is initiated in a moving ribbon of glass by projecting grit material toward the surface of the ribbon in a controlled manner to create a selected zone of surface damage thereon. The selected zone of surface damage is then advanced under a scoring wheel sized, shaped, and loaded to generate the damage-free score upon encountering an appropriate zone of surface damage.

REFERENCES:
patent: 3244337 (1966-04-01), Curtze et al.
patent: 3865293 (1975-02-01), Ernsberger et al.
patent: 3865673 (1975-02-01), DeTorre
patent: 3979243 (1976-09-01), DeTorre
patent: 4027562 (1977-06-01), Bonaddio
patent: 4057184 (1977-11-01), Michalik
patent: 4102227 (1978-07-01), Simko
patent: 4137803 (1979-02-01), Goldinger
patent: 4213550 (1980-07-01), Bonaddio

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