Temperature sensitive releasable optical connector

Details Temperature sensitive releasable optical connector Temperature sensitive releasable optical connector

1983-11-25

1986-07-01

Lee, John

G02B 638

Patent

active

045976325

ABSTRACT:
An optical fibre connector to connect two optical fibres comprises a ferrule secured to each fibre end, and a clamping sleeve of shape memory effect metal to align and clamp the ferrules. The shape memory effect metal is selected and trained to expand on heating above its transformation temperature. The bore of the clamping sleeve is arranged to make an interference fit with the ferrules when below the transformation temperature, and a clearance fit when above the transformation temperature. An elastic titanium alloy compression sleeve surrounding the clamping sleeve provides for long-term integrity of the connector and reinforces the clamping action of the clamping sleeve when below its transformation temperature.

REFERENCES:
patent: 3914015 (1975-10-01), McCartney
patent: 4261644 (1981-04-01), Giannaris
patent: 4352542 (1982-10-01), Tydings
Goldstein et al, "A Connector-Like Device for Joining Optical Fibers", 12th Annual Connector Symp. Proc. (Cherry Hill, N.J.), Oct. 1979, pp. 214-220.
Machine Design, vol. 52, No. 1, Jan. 1980, Cleveland Ohio (US), "Scanning the Field for Ideas:-Memory Metal Couples Optic Fibers", p. 50.
Patents Abstracts of Japan, vol. 6, No. 241, Nov. 30, 1982, p. 86P158 & JP-A 57 139 714 (Nippon Denshin Denwa Kosha) (28-08-1982).
Patents Abstracts of Japan, vol. 1, No. 35, Section E, Apr. 15, 1977, p. 1994E76, & JP-A-51 133 036 (Furukawa Denki Kogyo K.K.) (18-11-1976).
"Shape-Memory Alloys", by Schetky, Scientific American, Nov. 1979, pp. 68-76.

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