Etching machine and method

Details Etching machine and method Etching machine and method

1989-10-27

1991-07-16

Powell, William A.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51319, 51410, 51439, B24B 100, B24C 100, B24C 300, B24C 504

Patent

active

050313738

ABSTRACT:
An etching machine for etching a material such as glass or crystal includes a blast unit having a plurality of grit guns. The position of the grit guns relative to the material to be etched is individually adjustable prior to initiation of the etching operation. This adjustment is provided by mounting each pair of grit guns on a support, so that the grit guns are pivotable relative to the support. Additionally, each support is slidable along a track, so that the position of the grit guns is also adjustable along the length of the track. Once the adjustment is facilitated, the grit guns are locked in place. The compressed air and grit feeds to each grit gun are also independently adjustable. In this way, the machine requires no parts which move during the actual etching operation, thus significantly enhancing reliability, accuracy and safety.

REFERENCES:
patent: 3898768 (1975-08-01), Gilbert et al.
patent: 4769956 (1988-09-01), Wern

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