Test coupon holder

Details Test coupon holder Test coupon holder

1986-04-25

1987-10-06

Lacey, David L.

Measuring and testing

Probe or probe mounting

422 53, 436 6, 73 86, G01N 300, G01N 1700

Patent

active

046974652

ABSTRACT:
A corrosion coupon holder for inserting and removing a coupon from the interior of a pipeline while under pressure has an elongated housing with a threaded connection at one end and a removable closure device at the other end, the housing connection to be attached to a pipe entry valve which is connected as a branch to the pipeline. The housing other end also carries a guide body having a bore which guidingly and sealingly receives a rod for inserting a coupon having a safety stop element at one end to hold the coupon, the guide body having a split collet associated with the bore with a locking screw mounted to act on the collet to fixedly clamp the rod in the bore of the guide body and the housing having a bleeder valve communicating with the interior to relieve pressure from within such interior.

REFERENCES:
patent: 1769463 (1930-07-01), Rice
patent: 2679752 (1954-06-01), Metler
patent: 2752228 (1956-06-01), Gould
patent: 2763534 (1956-09-01), Campbell
patent: 2770532 (1956-11-01), Mason
patent: 2870629 (1959-01-01), Willis
patent: 3174332 (1965-03-01), Echtler, Jr. et al.
patent: 3718034 (1973-02-01), Swearingen
patent: 3948744 (1976-04-01), Cushing
patent: 4002059 (1977-01-01), Jeffers et al.
patent: 4120313 (1978-10-01), Lewis
patent: 4177676 (1979-12-01), Welker
patent: 4179920 (1979-12-01), Schuller et al.
patent: 4275592 (1981-06-01), Atwood et al.
patent: 4309899 (1982-01-01), Torres

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