Measuring and testing – With fluid pressure – Pipe
Patent
1983-04-26
1985-10-22
Levy, Stewart J.
Measuring and testing
With fluid pressure
Pipe
73 491, G01M 328
Patent
active
045480699
ABSTRACT:
A pipe testing tool in the form of an elongated tubular member positionable within a pipe and which includes spaced, radially expandable sealing rings to contact the inner surface of the pipe and define at test section. The tool includes a through bore to carry pressurizing fluid which is used to cause the sealing rings to expand and then to pressurize the test section for leakage testing. A radial conduit from the through bore provides communication with a movable cylinder to compress the sealing rings and an escape chamber is provided to permit pressure release of trapped air between the cylinder and the sealing rings. The radial conduit is preferably spaced at least two conduit diameters away from a threaded portion to reduce stress concentrations and thereby avoid failure of the tool due to flexing during handling and use thereof.
REFERENCES:
patent: 2953919 (1960-09-01), Potts
patent: 2955458 (1960-10-01), Sonnier et al.
patent: 2998721 (1961-09-01), Gawlik
patent: 3048998 (1962-08-01), Gilreath
patent: 3165920 (1965-01-01), Loomis
patent: 3199598 (1965-08-01), Loomis
patent: 3333459 (1967-08-01), Claycomb
patent: 3478577 (1969-11-01), Hauk
patent: 3495443 (1970-02-01), Phillips et al.
patent: 3503249 (1970-03-01), Dumond
patent: 3712115 (1973-01-01), Miller
patent: 3787226 (1974-01-01), Iglehart et al.
patent: 3800596 (1974-04-01), Phillips et al.
patent: 3899920 (1975-08-01), Matherne
patent: 4081990 (1978-04-01), Chatagnier
patent: 4083230 (1978-04-01), Rome, Sr. et al.
patent: 4305277 (1981-12-01), Ball et al.
patent: 4322969 (1982-04-01), Ball et al.
Damco Testers, Inc.
Levy Stewart J.
Williams Hezron E.
LandOfFree
Pipe testing tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pipe testing tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pipe testing tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-116393