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:
Jan. 20, 2026
Filed:
Nov. 02, 2020
Applicant:
Nov Process & Flow Technologies As, Fornebu, NO;
Inventors:
Assignee:
GRANT PRIDECO, INC., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/46 (2006.01); B08B 9/055 (2006.01);
U.S. Cl.
CPC ...
F16L 55/46 (2013.01); B08B 9/0551 (2013.01);
Abstract
A pig drive, a pig drive system for feeding a pig into a pig kicker section of a pipe, and a method for feeding the pig into the pig kicker section of the pipe are disclosed. The pig drive includes: a piston with a radial direction and an axial direction; a rod connected to the piston and extending in the axial direction of the piston, wherein the rod has a distal end adapted to interface the pig; a retainer slidably connected to the rod and adapted to interface a retainer abutment; and a biasing device arranged to bias the retainer towards the distal end of the rod.