METHOD AND APPARATUS EMPLOYING LASER RANGING FOR MEASURING THE LENGTH OF PIPE SECTIONS - Patent 0188598

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EP 0 188 598 A1

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(43)	Date of publication:
	30.07.1986 Bulletin 1986/31

(21)	Application number: 85903904.0

(22)	Date of filing: 15.07.1985

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International Patent Classification (IPC):

G01B 11/ 02^{( . )}

G01S 17/ 88^{( . )}

(86)	International application number:
	PCT/US1985/001340

(87)	International publication number:
	WO 1986/000981 (13.02.1986 Gazette 1986/04)

(84)	Designated Contracting States:
	AT BE CH DE FR GB IT LI LU NL SE

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Priority:

23.07.1984 US 19840633404

(71)	Applicant: INNOVATUM, INC.
	Houston, TX 77098 (US)

(72)	Inventors:
	CLOUTIER, Paul, A. 2020 Southwest Freeway Houston, TX 77098 (US) OEHME, Delbert, R. 2020 Southwest Freeway Houston, TX 77098 (US) BENSON, John, L. Houston, TX 77098 (US)

(54)	METHOD AND APPARATUS EMPLOYING LASER RANGING FOR MEASURING THE LENGTH OF PIPE SECTIONS