Thread inspection apparatus and method

Details Thread inspection apparatus and method Thread inspection apparatus and method

1979-09-14

1981-02-10

Anderson, Bruce C.

Radiant energy

Radiation tracer methods

250365, G09K 300

Patent

active

042503833

ABSTRACT:
A method of and apparatus for inspecting the threads of tubular elements for flaws, cracks and the like are disclosed. The invention is particularly useful in performing thread inspections of the box and pin ends of drill collars according to known processes using a fluorescent solution and ultraviolet radiant energy. An inspection unit is provided which encloses the threads to be inspected in a light-excluding manner and houses a source of ultraviolet energy. The threads are visually inspected through an aperture in the inspection unit by either rotating the inspection unit or the tubular element to be inspected.

REFERENCES:
patent: 2217991 (1940-10-01), Peck et al.
patent: 2649500 (1953-08-01), Fedorchak
patent: 3417241 (1968-12-01), Davis

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