Patent ID: 7857361
Filing Date: 2010-12-28
Classification: F16L

Abstract:
1. A coupler for detachably combining a first threaded connector and a second threaded connector, said coupler comprising: a body having a first end and a second end, said first and second ends each having an opening wherein the opening in the first end is adapted to combine with the first threaded connector and the opening in the second end is adapted to combine with the second threaded connector, said openings being connected by an internal cavity that is adapted to allow fluid to flow between the first and second ends; at least two pivoting members combined with the coupler second end, which pivoting members are pivotable between a first position wherein they are pivoted outward to make the second opening larger and a second position wherein they are pivoted inward to make the second opening smaller, the pivoting members comprise threads on their internal surfaces adapted to mate with the threads on the second threaded connector when the pivoting members are in their second position; a sleeve having a first position wherein the sleeve does not engage the pivoting members and a second position wherein the sleeve engages the pivoting members to move them from their first position to their second position; a spacer positioned between the pivoting members, wherein the spacer engages the sleeve and the pivoting members so that rotation of the sleeve causes rotation of the pivoting members; a stopper extending vertically from the outer surface of the coupler body; and a slot in the sleeve adapted to receive the stopper when slot is in axial alignment with the stopper, wherein when the sleeve is in the first position the stopper prevents rotation of the sleeve, and when the sleeve is in the second position the sleeve is rotated with respect to the stopper in order to prevent accidental axial movement of the sleeve with respect to the coupler body.