Laser target pipe insert apparatus

Details Laser target pipe insert apparatus Laser target pipe insert apparatus

1989-09-01

1990-11-06

Rosenberger, Richard A.

Optics: measuring and testing

By alignment in lateral direction

356153, 33293, G01B 1100, G01B 1126, G01C 1502

Patent

active

049681478

ABSTRACT:
A base target apparatus for aligning a length of pipe (100) along the longitudinal axis of a pipe string wherein the target apparatus (10) includes a base unit (11) containing a target unit (13) and having one tapered end (15) which is dimensioned to be received in the bell end (101) of the pipe whereas, the other end (15') of the base unit (11) is provided with an anchor unit (12) which is dimensioned to be frictionally engaged in the spigot end (102) of the length of pipe (100).

REFERENCES:
patent: 3612700 (1971-10-01), Nelson
patent: 3631601 (1972-01-01), McNulty
patent: 3801205 (1974-04-01), Eggenswyler
patent: 3815250 (1974-06-01), Roodvoets et al.
patent: 3898743 (1975-08-01), Myeress
patent: 4053238 (1977-10-01), George et al.
patent: 4272191 (1981-06-01), Bergkvist
patent: 4447962 (1984-05-01), Grosberg
patent: 4549360 (1985-10-01), Allen
patent: 4709485 (1987-12-01), Bowman

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