Aggressive pipeline pig
OwnerKenneth M. Knappinventor
Life of this patent
Estimating the term…
Abstract
A modular pipeline pig provides scraping cup having holes therethrough, adapted to retain a plurality of scraper studs. Positioned a well-defined distance behind the scraping cup is a driving cup defined by a slightly larger diameter than the scraping cup. The studs in the scraping cup may be of any appropriate shape or material, depending in the particular job. The driving cup is preferably mounted on the forward end of a mandrel, and another driving cup mounted to the back end of the mandrel. The pig is modular, so that other scrapers and or cups may be mounted to suit the needs of a particular job.
Claims10
A pipeline pig comprising:
- a. a hollow axially oriented mandrel having a forward flange and an after flange and a radially disposed hole therethrough;
- b. a front drive cup mounted to the forward flange;
- c. a back drive cup mounted to the after flange;
- d. a spacer mounted in abutting contact with the front drive cup;
- e. a scraper cup mounted to the spacer;
- f. a plurality of studs mounted to the scraper cup;
- and
- g. mounting hardware mounting the plurality of studs to the scraper cup, wherein the mounting hardware is accessible behind the scraper cup.
A pipeline pig comprising:
- a. a hollow axially oriented mandrel having a forward flange and an after flange and a radially disposed hole therethrough;
- b. a front drive cup mounted to the forward flange;
- c. a back drive cup mounted to the after flange;
- d. a spacer mounted in abutting contact with the one of the group consisting of the front drive cup and the back drive cup;
- e. a scraper cup mounted to the spacer;
- f. a plurality of studs mounted to the scraper cup;
- and
- g. mounting hardware mounting the plurality of studs to the scraper cup, wherein the mounting hardware is accessible behind the scraper cup.
Dependencies are inferred from the claim text.