Fluid operating tool
AssigneeUnex Corporation
InventorSteven Spirer
Life of this patent
Estimating the term…
Abstract
A fluid-operated tool for elongating a stud which has an axis and an end extending out over a nut, the tool comprises stud pulling unit adapted to engage the end of the stud so as to pull the stud, nut turning unit adapted to engage the nut so as to turn the nut, first fluid-operated unit acting on the stud pulling unit so that the stud pulling unit pull the end of the stud to elongate the stud, second fluid-operated unit acting on the nut turning unit so that the nut turning unit turns the nut, the first fluid-operated unit and the second fluid-operated unit communicating with a fluid source so that a pressure fluid supplied by the fluid source to the first fluid-operated unit and the second fluid-operated unit elongates the stud and turns the nut.
Claims22
A fluid-operated tool for tightening and loosening a threaded connector including a stud which has an axis and an end extending out over a nut, the tool comprising stud pulling means adapted to engage the end of the stud so as to pull the stud;
- nut turning means adapted to engage the nut so as to turn the nut;
- first fluid-operated means acting on said stud pulling means so that said stud pulling means pulls said end of the stud to elongate the stud;
- second fluid-operated means acting on said nut turning means so that said nut turning means turns the nut, said first fluid-operated means and said second fluid-operated means communicating with a fluid source so that a pressure fluid supplied by the fluid source to said first fluid-operated means and said second fluid-operated means elongates the stud and turns the nut;
- and controlling means operative so that fluid first acts on said stud pulling means so that said stud pulling means first pulls said end of the stud to elongate the stud, and then it stops acting on said stud pulling means and acts on said nut turning means so that, after elongation of said stud by said stud pulling means, said nut turning means turn the nut.
Dependencies are inferred from the claim text.