Coupon holder

Details Coupon holder Coupon holder

1977-03-02

1978-10-17

Cohan, Alan

Fluid handling

With holder for solid, flaky or pulverized material to be...

422 53, G01N 3300

Patent

active

041203135

ABSTRACT:
An apparatus for inserting and removing a corrosion coupon from the interior of a pipeline while under pressure, comprises an elongated cylinder with a flange or threaded connection at one end and a closure device at the other end. The cylinder is attached to a valve which is attached as a branch to a pipeline. Inside of the cylinder are guides for the longitudinal movement of a long rack at the end of which is mounted the corrosion coupon. A pinion in operative relation to the rack is mounted on a shaft which is supported in a side pipe to the cylinder. A handwheel operating the shaft permits the longitudinal movement of a long rack within the cylinder. At the end of the rack is mounted the corrosion coupon. When the valve is open the coupon is moved through it into the pipeline so that the coupon is exposed to the fluid flowing in the pipeline. Indexing means is provided for determining the precise position of the coupon in the pipe.

REFERENCES:
patent: 980665 (1911-01-01), Ord
patent: 1689236 (1928-10-01), Fraser
patent: 1730305 (1929-10-01), Stancu
patent: 1769463 (1930-07-01), Rice
patent: 2770532 (1956-11-01), Mason

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