Method and instrument for measuring inside diameter of conduit

Details Method and instrument for measuring inside diameter of conduit Method and instrument for measuring inside diameter of conduit

2005-05-24

2005-05-24

Fulton, Christopher W. (Department: 2859)

Geometrical instruments

Gauge

Internal

C033SDIG001

Reexamination Certificate

active

06895681

ABSTRACT:
An apparatus for measuring an inner diameter of a pipeline is incorporated into a passage pig for checking passableness through the pipeline or a cleaning pig for cleaning within the pipeline, the passage pig and the cleaning pig including at least one seal cup sealably sliding along an interior surface of the pipeline. The apparatus includes a travel distance measuring unit for measuring a travel distance of the passage pig or the cleaning pig within the pipeline, a swing angle detector for detecting a swing angle of a pig body during the travel distance measurement, a displacement detector for individually detecting a radial displacement of the peripheral portion of the seal cup at a number of points along an entire circumference during the travel distance measurement, a computing unit for computing an output from each of said means, and a recording means for recording an output from the computing unit.

REFERENCES:
patent: 3755908 (1973-09-01), VerNooy
patent: 4342225 (1982-08-01), Jandera et al.
patent: 4443948 (1984-04-01), Reeves
patent: 4457073 (1984-07-01), Payne
patent: 4747317 (1988-05-01), Lara
patent: 4930223 (1990-06-01), Smith
patent: 4953412 (1990-09-01), Rosenberg et al.
patent: 6065218 (2000-05-01), Edwards
patent: 62-083608 (1987-04-01), None
patent: 64-054216 (1989-03-01), None

Affiliated with

Also associated with

Rating

Method and instrument for measuring inside diameter of conduit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and instrument for measuring inside diameter of conduit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and instrument for measuring inside diameter of conduit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3414506