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Thermally actuated thermionic switch

Patent ·
OSTI ID:866605
 [1];  [1]
  1. San Jose, CA
+ Show Author Affiliations
A thermally actuated thermionic switch which responds to an increase of temperature by changing from a high impedance to a low impedance at a predictable temperature set point. The switch has a bistable operation mode switching only on temperature increases. The thermionic material may be a metal which is liquid at the desired operation temperature and held in matrix in a graphite block reservoir, and which changes state (ionizes, for example) so as to be electrically conductive at a desired temperature.
Research Organization:
GENERAL ELECTRIC CO
DOE Contract Number:
AT03-76SF71032
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4747998
OSTI ID:
866605
Country of Publication:
United States
Language:
English

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Related Subjects

/376/310/313/361/976/
actuated
actuated thermionic
bistable
bistable operation
block
changes
changing
conductive
desired
desired temperature
electrically
electrically conductive
example
graphite
held
impedance
increase
increases
ionizes
liquid
material
matrix
metal
mode
operation
predictable
reservoir
responds
set
stable operation
switch
switching
temperature
temperature increase
thermally
thermally actuated
thermionic
thermionic switch