Mike Barjesteh

US Patent:

57821283, Jul 21, 1998

Filed:

Apr 18, 1997

Appl. No.:

8/839943

Inventors:

Mike Barjesteh - Randolph NJ
Jerry Umbro - Randolph NJ
Ali M. Sadegh - Closter NJ

Assignee:

Mastercool, Inc. - Randolph NJ

International Classification:

B21D 1900

US Classification:

72318

Abstract:

A manually operable hand tool apparatus for providing a radially outward flare, known as push connect flare, away from the distal end of a deformable tube. The hand tool comprises a gripper-die means for securing the tube, a yoke portion having internal threads and a manual hydraulic pump portion. The yoke moves axially on a threaded positioning screw that is rigidly connected to the manual hydraulic pump portion. A vise means comprising a screw and a tightening rod is attached to the yoke. The vise is used to secure the gripper-die means to the yoke. The pump portion comprises a cylindrical body, a flaring piston, a threaded positioning screw, a pumping linkage system and a relief valve. An adapter-die is secured by a guide nut which is connected to the flaring piston. Alternative adapter-die and guide nut designs are also used to connect the die to the flaring piston.