Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1974-09-06
1976-12-14
Borchelt, Archie R.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250239, 340271, 356138, 356172, G01D 534
Patent
active
039977820
ABSTRACT:
A rotary pulse transducer includes a housing having a pair of halves of similar dimensions. An annular photoelectric stator formed from a plastic sheet is employed as a sealing gasket between the halves of the transducer housing. During assembly of the transducer, the stator may be easily moved relative to the housing for alignment purposes by grasping exterior portions of the stator.
REFERENCES:
patent: 3421012 (1969-01-01), Johnson, Jr.
patent: 3693023 (1972-09-01), Wasserman
Borchelt Archie R.
Dynapar Corporation
La Roche E. R.
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