Method and device for detecting leaks using smoke

Electric resistance heating devices – Heating devices – Vaporizer

Reexamination Certificate

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Details

C239S135000

Reexamination Certificate

active

10975781

ABSTRACT:
A smoke producing device for detecting leaks in a fluid system comprises a smoke producing chamber and a fluid reservoir for containing a smoke producing fluid. A heating element is provided within the smoke producing chamber. The chamber has a pressurized gas inlet for receiving a pressurized gas and an outlet port for conveying pressurized gas and/or smoke out of said chamber. A fluid transfer device has a first portion disposed within the fluid reservoir and a second portion which is adjacent and/or in contact with the heating element. The fluid transfer device is a capillary flow device which conveys smoke producing fluid from the fluid reservoir to the vicinity of the heating element primarily by capillary action.

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patent: 5022435 (1991-06-01), Jaw-Shiunn
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patent: 6018615 (2000-01-01), Loblick
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patent: 6361752 (2002-03-01), Demarest et al.
patent: 6392227 (2002-05-01), Banyard
patent: 6439031 (2002-08-01), Pieroni et al.
patent: 6526808 (2003-03-01), Pieroni et al.

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