公开(公告)号：US5333925A

公开(公告)日：1994-08-02

申请号：US11513

申请日：1993-02-01

Applicant: Larry Foley, Jr.

Inventor： Larry Foley, Jr.

IPC: E21B19/16

CPC classification number: E21B19/161

Abstract: The present invention relates to a method and apparatus for containing and restraining the fragmentation of the jaw portion of a set of mechanical pipe tongs, under stress load conditions. The apparatus comprising a flexible belts or the like surrounding the jaws of the tongs like a girdle and attached to an energy absorber located at either side of the tongs' body.

Abstract translation: 本发明涉及一种用于在应力负载条件下容纳和限制一组机械管钳的钳口部分的破碎的方法和装置。 该装置包括围绕夹钳的钳口的柔性带等，如腰带并且附接到位于钳体两侧的能量吸收器。