Invention Grant
- Patent Title: Tubular gripping apparatus with locking mechanism
- Patent Title (中): 带锁定机构的管状夹紧装置
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Application No.: US12371590Application Date: 2009-02-14
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Publication No.: US08496238B1Publication Date: 2013-07-30
- Inventor: Keith J. Orgeron
- Applicant: Keith J. Orgeron
- Applicant Address: US TX Tomball
- Assignee: T&T Engineering Services, Inc.
- Current Assignee: T&T Engineering Services, Inc.
- Current Assignee Address: US TX Tomball
- Agency: Scheef & Stone, L.L.P.
- Agent John G. Fischer, Esq.; Paul D. Lein, Esq.
- Main IPC: B25B5/16
- IPC: B25B5/16 ; B25B1/14 ; B25B1/06 ; B25B1/20 ; B25B27/14 ; B25B27/00 ; B25B13/50 ; B25B17/00 ; B23Q3/08 ; B23P19/04

Abstract:
A tubular gripping apparatus has a jaw assembly that has a tubular-contacting surface at an end thereof, a drive yoke that has a tubular-contacting surface at an end thereof, an actuator connected to the drive yoke, and a locking mechanism interconnected to the drive yoke. The drive yoke is connected to the jaw assembly. The actuator moves the jaw assembly and the drive yoke such that the tubular-contacting surfaces thereof move radially inwardly for a substantially identical distance. The locking mechanism directs a load away from the actuator while the jaw assembly and the drive yoke grip the tubular. The locking mechanism has a cylinder yoke positioned around the piston-and-cylinder assembly, and a wedge assembly positioned adjacent the bearing bar and the cylinder yoke. The wedge assembly is suitable for contacting the cylinder yoke so as to prevent a movement of the cylinder yoke.
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