Apparatus for the observation of processes

Details Apparatus for the observation of processes Apparatus for the observation of processes

1992-04-07

1993-12-14

Evans, F. L.

Optical: systems and elements

Protection from moisture or foreign particle

359894, 118713, G01P 340

Patent

active

052708560

ABSTRACT:
A tubular stroboscope is interposed in the line of sight between a viewing glass and a process to be viewed in a chamber. The stroboscope is rotated about a central axis transverse to the line of sight and has a pair of diametrically opposed slots parallel to said axis, one slot being substantially wider than the opposite slot. The stroboscope is preferably driven by a jet of inert gas acting on a drive wheel inside the chamber, aspiration means being provided for dust removal.

REFERENCES:
patent: 2796798 (1957-06-01), McCall
patent: 3170383 (1965-02-01), Hunt
patent: 3316463 (1967-04-01), Hanks
patent: 3678889 (1972-07-01), Murakami et al.
Machine Design Oct. 13, 1988 pp. 9, 10, 12, 16, 17, 20-22, 24, 33-38, 40-42, 44, 46, 48, . . . 68, 70-72, 74, 76-78, 80, 82-84.

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