Invention Grant
- Patent Title: Torque wrench system having multiple torque stations
-
Application No.: US14172096Application Date: 2014-02-04
-
Publication No.: US09890599B2Publication Date: 2018-02-13
- Inventor: Dale Francis , Nicholas Francis , William P. Bernard , Oswald J. Bernard , Lan Hiscox , Brian Compton , Arthur Jones
- Applicant: Francis Services, Inc.
- Applicant Address: US LA Luling
- Assignee: FRANCIS TORQUE SERVICE, LLC
- Current Assignee: FRANCIS TORQUE SERVICE, LLC
- Current Assignee Address: US LA Luling
- Agent Brett A. North
- Main IPC: E21B19/16
- IPC: E21B19/16 ; B23P19/06 ; B25B21/00 ; B25B23/14 ; E21B17/08

Abstract:
An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.
Public/Granted literature
- US20140209322A1 TORQUE WRENCH SYSTEM HAVING MULTIPLE TORQUE STATIONS Public/Granted day:2014-07-31
Information query