Etching fountain

Details Etching fountain Etching fountain

1983-10-28

1984-09-04

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Differential fluid etching apparatus

With microwave gas energizing means

156654, 156663, B44C 122, C03C 1500, C03C 2506

Patent

active

044695446

ABSTRACT:
An apparatus is described for etching an optical fiber down to a depth in which evanescent waves are encountered. Since the apparatus has a provision to remove harmful etchant vapors, it can be operated in an open room with special venting requirements. The apparatus can project either a constant or pulsating flow of etchant materials over the optical fiber to create fibers with either smooth or abrupt transitions from the outer jacket of an optical fiber down to the inner core. The apparatus is also suitable for etching any material in an area where specially protected and designed venting facilities are unavailable. The apparatus can also be used to etch fine wires, rods, and the like.

REFERENCES:
patent: 2559080 (1951-07-01), MacAllister
patent: 3125476 (1964-03-01), Anderson
patent: 3294603 (1966-12-01), Myers
patent: 3404049 (1968-10-01), Shanefield et al.

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