1988-09-09
1990-02-06
Sikes, William L.
350 9621, 350 9610, G02B 636
Patent
active
048984450
ABSTRACT:
A fiber-optic switch uses a single optical fiber for two-way communication with light. A switching mechanism has no electrical part and is thus appropriate for placement in an area having explosive or combustible materials. The optical fiber can be cut to length in the field and can be installed without special tools or training. The fiber is held in place by a clip that is constrained to compress the fiber and grip it securely. A snap-action mirror reflects light back into the fiber in one position and does not reflect it in another position. The mirror is maintained in one of the two positions by a spring force. An electronic circuit provides pulsed light and determines coincidence of sent and received pulses to discriminate against operation of the switch by ambient light or other spurious signals.
REFERENCES:
patent: 3886544 (1975-05-01), Narodny
patent: 4170731 (1979-10-01), Howell et al.
patent: 4376566 (1983-03-01), Blackington
patent: 4437728 (1984-03-01), Ohashi
patent: 4596442 (1986-06-01), Anderson et al.
patent: 4705348 (1987-11-01), Matsunaga et al.
patent: 4726646 (1988-02-01), Tanaka et al.
patent: 4738506 (1988-04-01), Abendschein et al.
patent: 4774407 (1988-09-01), Erbe
patent: 4796966 (1989-01-01), Kovaleski et al.
Franks Terry E.
Newell Edwin R.
Healy Brian M.
Johnston A. Sidney
Lowe, Jr. James Earl
Sikes William L.
Square D Company
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