Temperature actuated spacing regulator and alarm

Details Temperature actuated spacing regulator and alarm Temperature actuated spacing regulator and alarm

1994-10-07

1997-10-21

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

374188, 403 30, G08B 1700

Patent

active

056801076

ABSTRACT:
Thermally induced movement between stacked conical, pyramidal "cones" and segments of such cones can be used to provide alarm signals and control the distance between and orientation of objects. Preferably, each of the stacked cones must have a lesser characteristic of thermal change than the cone next most proximate to the base cone.

REFERENCES:
patent: 4125180 (1978-11-01), Roberts
patent: 4487016 (1984-12-01), Schwarz et al.
patent: 4512699 (1985-04-01), Jackson et al.
patent: 4702439 (1987-10-01), Kelley et al.

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