Remotely controlled sampling device having a vent passage connec

Details Remotely controlled sampling device having a vent passage connec Remotely controlled sampling device having a vent passage connec

1992-09-03

1995-05-02

Chilcot, Jr., Richard E.

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386466, G01N 112

Patent

active

054109191

ABSTRACT:
A remotely controlled fluid sampling device adapted to take and retrieve samples from any depth or level within a body of fluid comprises an elongated tubular container, the upper outlet end of which is sealingly attached to an end cap. The end cap has a vent passage, a drain passage, a manually operated stop cock for opening and closing off the drain passage, and an eye or hook portion for attaching a support means thereto. A sealed housing is sealingly attached to the opposite inlet end portion of the tubular container and encloses an upper valve chamber with a fluid passage in its outer wall and a lower power chamber separated by an upper end wall in which a valve bore is sealingly engaged by an axially moveable valve stem. The valve stem is connected to the drive shaft of reversible power means sealed within the power chamber and which selectively moves the valve stem into and out of engagement with a valve seat and thereby opens and closes a valve passage therein connected to the internal chamber of the tubular container.

REFERENCES:
patent: 3625066 (1971-12-01), Greene
patent: 3986553 (1976-10-01), Klyen
patent: 4037477 (1977-07-01), Niskin
patent: 4050315 (1977-09-01), Markfelt
patent: 4346519 (1982-08-01), Milo
patent: 4347751 (1982-09-01), Niskin et al.
patent: 4531895 (1985-07-01), Zeck
patent: 4884439 (1989-12-01), Baird
patent: 4940088 (1990-07-01), Goldschild
patent: 4949582 (1990-08-01), Vollweiler

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