Fluid cutoff device in a fluid line
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United States of America Patent
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-
Jul 24, 1990
Grant Date -
N/A
app pub date -
Jun 14, 1989
filing date -
Jun 15, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid cutoff device in a line, includes a first coupling having a generally cylindrically shaped outer body, and a hollow generally cylindrically shaped inner body with a first inner sealing surface. The first coupling includes a first shutter valve adapted to be normally biased closed to abut against the first sealing surface to cut off fluid flow through the first coupling. The device includes a second coupling having a generally cylindrically shaped outer body adapted to sealably translate within the inner body of said first coupling, and a hollow generally cylindrically shaped inner body with a second inner sealing surface. The second coupling includes a second shutter valve and is adapted to be normally biased closed against the second sealing surface to cut off fluid flow through the second coupling which is engagable with the second shutter valve and a second actuation means within the second coupling engagable with the first shutter valve adapted to separate the respective shutter valve from the respective sealing surface to open the couplings.
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