Stud tensioning apparatus

Details Stud tensioning apparatus Stud tensioning apparatus

B - Operations, Transporting

25

B

81/25

B25B 17/00 (2006.01)

Patent

CA 1245082

ABSTRACT OF THE DISCLOSURE A hydraulic powered stud tensioner as employed to tension stud-like members in forming flanged joints in pipes or like vessels. A housing containing a plurality of sector shaped jaws having thread portions for engaging the stud threads. An actuating sleeve rotatably supported in the housing and having inner camming surfaces. The camming surfaces are arranged so that rotation of the sleeve to one extreme moves the thread portions radially inward into engagement with the stud threads and to the other extreme moves the thread portions radially outward and free of the stud threads. An improved hydraulic actuator having a piston and an improved fluid seal on one side of the piston. An air chamber formed on the opposite side of the piston for receiving compressed air and applying force to the piston in a reverse direction to facilitate disengagement of the jaws from the stud threads. A linkage between the piston and the jaws that has mating spherical surfaces so that efficient force transmission between the piston and the jaws is achieved notwithstanding misalignment of the piston relative to the jaws.

495304

Affiliated with

Also associated with

Rating

Stud tensioning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stud tensioning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stud tensioning apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1272464