Patent ID: 6112622
Filing Date: 2000-09-05
Classification: B25B

Abstract:
A fluid-operated tool for tightening and loosening threaded connectors, comprising ratchet means including a ratchet connectable with a threaded connector to be tightened and loosened and provided with a plurality of teeth, and at least one pawl engageable in and disengageable from said teeth of said ratchet; drive means connected with said ratchet and movable over an advance stroke to turn said ratchet when said at least one pawl engages said teeth of said ratchet so as to turn a threaded connector connected with said ratchet for tightening and loosening, and a retract stroke in which said at least one pawl is disengaged from said teeth of said ratchet; and means for sensing when said at least one pawl falls into engagement with a tooth of said ratchet and in response reversing said drive means from said retract stroke to said advance stroke.