Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1991-11-12
1994-08-30
Williams, Hezron E.
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386464, 7386491, 7386451, G01N 112
Patent
active
053416929
ABSTRACT:
A device made of non-contaminating inert material for taking and preserving a fluid sample containing volatile substances for analysis having a tubular body with gas tight valves at opposite end portions which are opened to allow fluid to pass into and out of a chamber and closed to seal off the escape of and preserve a fluid sample therein during transfer to a laboratory for analysis. Opposite end portions of the tubular body are adapted for attachment of a lower one-way inlet check valve unit and an upper outlet extension unit thereto used with a supporting line or rod to lower and raise the device into and out of a body of fluid and thereby take a fluid sample thereof for analysis. Closing of the valves traps fluid and seals off the sample taken into the chamber between the valves and is removed therefrom by piercing a septum located adjacent the chamber and between the valves by suitable means including a hypodermic needle.
REFERENCES:
patent: 2059999 (1936-11-01), Rainville, Sr.
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patent: 3886800 (1975-06-01), Boehringer
patent: 4346519 (1982-08-01), Milo
patent: 4546659 (1985-10-01), Gill et al.
patent: 4625574 (1986-12-01), Robbins
patent: 4799389 (1989-01-01), Krauss et al.
patent: 5139654 (1992-08-01), Carpenter
Borgianini Stephen A.
Carpenter Robert E.
Santora Scott
Scavuzzo William S.
Sher Samuel E.
Ashraf Nashmiya
Kolkowski Brian M.
Norton Company
Williams Hezron E.
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