Measuring and testing – Rotor unbalance – Propeller – impeller – or fluid coupling
Patent
1986-07-07
1988-04-12
Eisenzopf, Reinhard J.
Measuring and testing
Rotor unbalance
Propeller, impeller, or fluid coupling
G01M 306
Patent
active
047366214
ABSTRACT:
A method of leak testing electrical or electronic components, by immersion in an inert liquid at a temperature above 100.degree. C., to detect any bubbles arising from the component, after which the component is removed from the liquid and drained, wherein according to the invention the liquid in which the component to be tested is immersed comprises predominantly perfluoroperhydrofluorene, C.sub.13 F.sub.22.
REFERENCES:
patent: 2459780 (1949-01-01), McBee
patent: 3548636 (1970-12-01), Litant
patent: 3738158 (1973-06-01), Farrel et al.
Krause, Cooling Electronic Equipment, 1965.
Sargent Colin R.
Slinn David S. L.
Wotton David E. M.
Baker Stephen M.
Eisenzopf Reinhard J.
I.S.C. Chemicals Limited, Borax House
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