Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With longitudinally expansible solid element
Reexamination Certificate
2006-12-26
2006-12-26
Vortman, Anatoly (Department: 2835)
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With longitudinally expansible solid element
C165S276000, C062S383000
Reexamination Certificate
active
07154369
ABSTRACT:
A thermal switch selectively couples a heat source to a pair of heat sinks. The thermal switch includes a shunt that is thermally coupled to the heat source. The shunt has a pair of posts. End portions of the posts are at least partially radially surrounded by respective cups. The cups in turn are thermally coupled to respective of the heat sinks. The cups are made of a material with a larger coefficient of thermal expansion than the material of the posts. Activation of one of the heat sinks causes the cup corresponding to that heat sink to contract, bringing it into contact with the corresponding post of the shunt. This opens a heat path through the switch from the heat source to the activated heat sink. Thermal isolation of the second cup is facilitated by an axial isolator of high thermal impedance, facilitating isolation of the inactive heat sink.
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Chiang Tony C.
Dietz Douglas W.
Franklin Mark R.
Moe Louis C.
Nuccitelli Dominic S.
Alkov Leonard A.
Vick Karl A.
Vortman Anatoly
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