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1. (WO2018222355) SPINNER TOOL WITH FLOATING CARRIAGE DEVICE

Pub. No.:    WO/2018/222355    International Application No.:    PCT/US2018/031807
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 10 01:59:59 CEST 2018
IPC: E21B 19/16
Applicants: FORUM US, INC.
Inventors: VO, Han
Title: SPINNER TOOL WITH FLOATING CARRIAGE DEVICE
Abstract:
A spinner tool includes a plurality of rollers configured to rotate a tubular and a linkage assembly configured to move the rollers into and out of contact with the tubular. The tool further includes a carriage assembly configured to support the linkage assembly. The carriage assembly has a frame, a pair of carriage rollers positioned on opposite sides of the frame, and a pair of spring cylinders positioned on opposite sides of each carriage roller. The spring cylinders are coupled at one end to the carriage roller and at an opposite end to the frame to force the carriage assembly into a centered position.