Patent · US Active

Power tong interlock system

US9995095B2 · kind B2 · utility

6Cited by
6References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 10, 2015
Grant dateJun 12, 2018
Priority date
Expiry dateJun 26, 2036

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B19/164
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A power tong assembly includes a power tong and an interlock system operably coupled to the power tong. The power tong is configured to grip and rotate a tubular segment in a first direction to make-up a threaded connection with the tubular segment and in a second direction to break-out the threaded connection with the tubular segment. The interlock system is configured to selectively allow the power tong to rotate the tubular segment in one of the first direction and the second direction unrestricted while restricting the power tong to rotate the tubular segment in the other of the first direction and the second direction at a limited speed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.