The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2002
Filed:
Oct. 03, 2000
Applicant:
Inventors:
Carl R. Torres, Jr., Kingwood, TX (US);
Paul T. Manzak, Houston, TX (US);
Jack E. Miller, Houston, TX (US);
Assignee:
Tuboscope I/P, Inc., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
B08B 9/055 ;
U.S. Cl.
CPC ...
B08B 9/055 ;
Abstract
A variable speed pig for movement within a pipeline having a plurality of venturi-shaped through passages extending longitudinally to permit fluid within the pipeline to bypass the pig. The size and shape of these passages may be varied to vary fluid pressure drop through the passages and the pig to correspondingly vary the speed of the pig passing through the pipeline.