Method of checking the presence of a pipeline connection between

Details Method of checking the presence of a pipeline connection between Method of checking the presence of a pipeline connection between

1990-09-10

1992-09-08

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73646, G01B 1700, G01H 312

Patent

active

051448394

ABSTRACT:
The presence of pipeline connections can be checked by the transmitting of acoustic signals from a transmitter to an acoustic sensor within the pipe. This method is used in particular in the manufacture of cigarettes.

REFERENCES:
patent: 4480473 (1984-11-01), Varterasian
patent: 4584676 (1986-04-01), Newman
patent: 4678621 (1987-07-01), Callaghan et al.
patent: 4852407 (1989-08-01), Komine et al.
patent: 4930350 (1990-06-01), Bode et al.
patent: 4935884 (1990-06-01), Hajicek
Materials Evaluation, Feb. 1976, pp. 28-31.
"Terminal Selection Using Acoustic Triangulation Technique", IBM Technical Disclosure Bulletin, International Business Machines Corporation, vol. 28, No. 12, May 1986, pp. 5639-5641.

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