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2 117 268

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IPC

(21) (22)

Application

94040121/28, 1994-10-27

(22)

Actual filing date

1994-10-27

(45)

Published

1998-08-10

(72)

Inventor

Vojtovich Jaroslav NikolaevichKravchenko Georgij IvanovichShanaurin Aleksandr Mikhajlovich

(73)

Holder

Vojtovich Jaroslav NikolaevichKravchenko Georgij IvanovichShanaurin Aleksandr Mikhajlovich

LIQUID ENHANCING SENSITIVITY OF LEAK DETECTORS Russian patent published in 1998 - IPC

Abstract RU 2117268 C1

FIELD: detection and location of leaks in tanks containing gas under pressure. SUBSTANCE: liquid enhancing sensitivity of acoustic leak detector presents solution of polyfluorinated amido-amine of general formula R₇CONHCH₂CH₂CH₂N(CH₃)₂, in which and n may assume values 0 or 1 in ether or ester of general formula R-X-R₁ in which R and R₁ are C₁-C₆ alkyls ( same or different ), x is residue of phthalic acid or polyethylenglycol with number of ethylene units from 1 to 3 with content of polyfluorinated amido-amine from 1 to 40% by mass in solution. EFFECT: enhanced sensitivity of ultrasonic leak detectors. 1 tbl

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RU 2 117 268 C1

Authors

Vojtovich Jaroslav Nikolaevich

Kravchenko Georgij Ivanovich

Shanaurin Aleksandr Mikhajlovich

Dates

1998-08-10—Published

1994-10-27—Filed