Lever action sampler and method

Details Lever action sampler and method Lever action sampler and method

1990-09-25

1992-03-10

Raevis, Robert

Measuring and testing

Sampler, sample handling, etc.

Capture device

G01N 112

Patent

active

050941135

ABSTRACT:
A lever action sampler having a body portion, usually tubular, and a pair of opposed end plugs for securing to the two ends of the body to thereby entrap a sample when activated is disclosed. The present invention utilizes a lever pivot assembly for an end plug at its upper portion, a lower end cap pivot assembly at the lower portion, both of which are pivotally secured to the end caps to permit the same to be locked/open for descending, and later closed for encapsulating the sample. The end caps are powered by means of a power spring and power spring cable operating exteriorly of the body, and actuated by means of a lever which cocks the unit into its unlatched and power spring preload functions, and thereafter secures a lanyard to either a rosette or to the sampler itself, and is subsequently fired by means of hitting the end cap of a push rod which release the lanyard or by releasing the lanyard from a rosette. The method contemplates the steps generally as itemized above.

REFERENCES:
patent: 2137128 (1938-11-01), Blake
patent: 3489012 (1970-01-01), Niskin
patent: 4037477 (1977-07-01), Niskin
patent: 4091676 (1978-05-01), Niskin
patent: 4106751 (1978-08-01), Niskin
patent: 4302974 (1981-12-01), Niskin
patent: 4593570 (1986-06-01), Niskin
patent: 4744256 (1988-05-01), Niskin
patent: 4852413 (1989-08-01), Niskin et al.
patent: 4960002 (1990-10-01), Isotalo

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