Implements or apparatus for applying pushing or pulling force – Pipe or rod jack – Tie rod tensioner
Patent
1998-12-08
2000-05-23
Scherbel, David A.
Implements or apparatus for applying pushing or pulling force
Pipe or rod jack
Tie rod tensioner
81 5738, E21B 1900
Patent
active
060657375
ABSTRACT:
An hydraulic, bolt tensioning device comprising a reaction component which in use bears against the member from which the bolt shank protrudes, the reaction component having a shank receiving bore extending therethrough, an annular, axially moveable component carried by said reaction component and moveable axially relative thereto by the introduction of hydraulic fluid under pressure between said components, a cam ring secured to said axially moveable component for axial movement therewith, and rotatable relative to said component about the axis thereof, and, a tensioning nut secured to said cam ring for movement therewith, said tensioning nut being divided into at least two relatively displaceable segments moveable relative to said cam ring between an open position in which the shank of a bolt to be tensioned can pass freely between said segments, and an operative position in which the thread portions on said segments mate with the thread of said bolt shank, said cam ring cooperating with said nut segments when said nut segments are engaged with a bolt shank and said axially moveable member is moved axially in a direction to tension the bolt shank, to load the segments radially inwardly to grip the bolt shank.
REFERENCES:
patent: 3815874 (1974-06-01), Jones
patent: 4315446 (1982-02-01), Orban
patent: 4438901 (1984-03-01), Reneau et al.
patent: 4531872 (1985-07-01), Warkotsh
patent: 4569258 (1986-02-01), Orban
Richardson Martin Edward George
Wellings Peter
Halpern Benjamin M.
Hydra-Tight Limited
Scherbel David A.
LandOfFree
Tensioning device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tensioning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tensioning device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1831494