Method of taking an impression with an internal bore impression

Details Method of taking an impression with an internal bore impression Method of taking an impression with an internal bore impression

1986-06-16

1987-04-21

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 401, 264314, B29C 4500

Patent

active

046595309

ABSTRACT:
A method employing tool (10) for taking an impression of an area of the internal bore of a tubular member (16) or a joint between two such members comprising means for directing a casting compound between two flexible membranes (20, 22) which are then forced outwardly so that the outer membrane (22) engages the area to be inspected within a bore where the compound forms a resilient mold (cast). When the force against the membranes and mold is removed, the membranes and mold collapse allowing the mold and tool (10) to be retrieved out the bore.

REFERENCES:
patent: 3216060 (1965-11-01), Trojanowski et al.
patent: 3651180 (1972-03-01), Glueckert
patent: 3966871 (1976-06-01), Schroder
patent: 3998923 (1976-12-01), Merkle
patent: 4314964 (1982-02-01), Ferrary

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