Title: Microwatt thermoelectric generator

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Claims: What is claimed is:

1. In a microwatt thermoelectric generator including a sealed container, a nuclear source in the container for heating a thermopile having a hot plate and a cold plate, and located in the container a getter means and a foil insulation package, the improvement comprising:

means for preventing heat from the nuclear source from by-passing the thermopile, including an auxiliary foil package surrounding the thermopile and located nearer to the hot plate than to the cold plate, said foil package having an axial length less than the axial length of said thermopile, the outer edges of said auxiliary package contacting the foil insulation package and the inner peripheral edges of said auxiliary package disposed closely adjacent the thermopile so that a heat barrier is formed for preventing heat from the hot plate from by-passing the thermopile.

2. The microwatt thermoelectric generator of claim 1 wherein said auxiliary foil package has a hole defined therein through which a tension wire can pass.

Other info:

Inventors: Goslee, David E. (White Marsh, MD, US)

Application Number: 489769
Filing Date: 1974-07-18
Publication_date: 1976-10-05
Assignee: Nuclear Battery Corporation (Columbia, MD)
Primary Class(es): 136/202 976/DIG416
Other Classes:
US Patent Ref:

3607443	Sep, 1971	Purdy	136/202.
3758346	Sep, 1973	Falkenberg et al.	136/202.
3818304	Jun, 1974	Hursen et al.	136/202.

Other Refs:
Primary Examiner: Wilbur, Maynard R.
Assistant Examiner: Montone, G. E.
Attorney: