Measuring and testing – Measuring vessel
Patent
1976-09-03
1977-11-08
Swisher, S. Clement
Measuring and testing
Measuring vessel
G01N 120
Patent
active
040569837
ABSTRACT:
A sampling device for taking a complete cross section of a stream of material flowing through a conduit system. The device consists of a container into which material is fed through a flexible conduit that can be moved to discharge either into a main conduit or into a sampling conduit within the container. The flexible conduit is moved by a reciprocating rod pivotally attached to a collar on the end of the flexible conduit. A timing device controls the operation of a motor which drives the rod. A sealing member is also pivotally attached to the collar and rod and is positioned over the sampling conduit between samplings to prevent entry of any contaminating material. The seal cooperates with blades on the entrance to the sampling conduit to form a tight seal. The pivoting of the seal member is limited to a predetermined arc by contact with the collar. This limiting feature serves to insure a tight seal while allowing the seal to adjust for minor wear and misalignment. The flexible conduit sweeps the flow across the entrance of the sampling conduit at a right angle. A blade on the bottom wall of the sampler minimizes any disturbance of the flow as it is moved up into alignment with the sampler by neatly cutting into the oncoming flow. The sampling conduit has an adjustable top wall which controls the size of the entrance. This wall can be adjusted before, during, or at any point in the operation.
REFERENCES:
patent: 3279260 (1966-10-01), Huntington
patent: 3561273 (1971-02-01), Tanila
patent: 3986402 (1976-10-01), Irwin
Hanes Richard W.
Swisher S. Clement
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