Title:
Vacuum switch
United States Patent 2966569
Inventors:
Emmett, Jennings JO.
Publication Date:
12/27/1960
Export Citation:
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Assignee:
JENNINGS RADIO MFG CORP
Primary Class:
218/135
Other Classes:
313/146, 361/2
International Classes:
H01H33/66; H01H33/66
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US Patent References:
2773154Electric switch
2740915Adjustable spark gap
2740869Vacuum switch
2740867Vacuum switch
2261020Circuit interrupting device
1892538Vacuum switch
Foreign References:
GB314352A
DE407725C
DE563140C
DE615965C
DE636086C
GB787846A