Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1987-04-06
1988-08-02
Noland, Tom
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386463, 331264R, G01N 112
Patent
active
047607475
ABSTRACT:
A liquid sampling and measuring device including a tubular casing, preferably constructed of transparent material, for holding a liquid and a valve. The tubular casing includes, at its lowermost end, a liquid conduction port for permitting liquid to flow into and from the casing. The valve, located within the casing, includes a spring biased piston provided with a port sealing member. A foot member, connected to the piston and extending through the port, operates, under pressure downwardly applied to the casing, to cause the sealant piston to retract against the bias of the spring. Cooperating cam members cause the piston to rotate and cooperating retention members on the piston and within the casing holds the piston in a retracted, open position. Pressure applied once again to the foot member causes further rotation of the piston to return the piston to an extended, closed position for sealing the port. Detachable tubular sections permit convenient storage of the device, while allowing tubular extensions for any desired depth.
REFERENCES:
patent: 2137128 (1938-11-01), Blake
patent: 2622435 (1952-12-01), Lucas et al.
patent: 3097532 (1963-07-01), Brown et al.
patent: 3169322 (1965-02-01), Milo
patent: 3390463 (1968-02-01), Hirsch
patent: 4326427 (1982-04-01), Ueberschaer
Horton Paul F.
Noland Tom
Petro Sales Corporation
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