Pig featuring foam filled cavity

Details Pig featuring foam filled cavity Pig featuring foam filled cavity

1983-12-02

1985-04-09

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

166153, B08B 904

Patent

active

045092222

ABSTRACT:
In the preferred and illustrated embodiment, an improved pig is set forth. The preferred version includes a body with a hollow cavity filled with foam. The body supports a number of encircling ribs for wiping the inside pipe surface. The internal foam filled cavity is exposed to pipeline pressure which enters through a constricted opening at the rear. In the event of a pressure surge, the fluid enters the pig with a pressure wave front, the pressure wave front being slowly propagated through the foam body. As the retarded pressure wave front moves through the body, the pig has sufficient time to move. Failure to incorporate this retardation of the propagated pressure wave front risks blowing out the nose of the pig.

REFERENCES:
patent: 4069535 (1978-01-01), Cato
patent: 4083074 (1978-04-01), Curtis
patent: 4365379 (1982-12-01), Neff

Affiliated with

Also associated with

Rating

Pig featuring foam filled cavity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pig featuring foam filled cavity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pig featuring foam filled cavity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1161899