Package making – Partial cover application – Band or tube
Reexamination Certificate
2007-01-02
2007-01-02
Huynh, Louis (Department: 3721)
Package making
Partial cover application
Band or tube
C053S590000, C100S029000, C100S032000, C100S0330PB
Reexamination Certificate
active
11168575
ABSTRACT:
A small profile strapping tool includes a body defining a cylinder housing, a piston disposed within a cylinder in the cylinder housing, a pneumatic weld motor operably connected to the piston for actuation during a weld cycle, a pneumatic tensioning motor for actuation during a tensioning cycle, and a pneumatic module removably mounted to the cylinder housing. Within the module, a pilot valve controls a flow of gas into the module, a tensioning motor valve controls gas flow to the tensioning motor to draw tension in the strap, a weld cycle valve controls gas flow to the weld motor and piston, a timer and an accumulator are configured to isolate gas flow to the weld motor upon reaching a predetermined pressure in the accumulator following actuation, and a pneumatic signal circuit disposed between the cylinder and a bleed valve includes a signal valve that controls actuation of the bleed valve to route gas to the tension motor to maintain tension in the strap following the weld cycle.
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Figiel Janusz
Nasiatka Jason R.
Breh, Esq. Donald J.
Croll, Esq. Mark W.
Huynh Louis
Illinois Tool Works Inc.
Levenfeld Pearlstein, LLC.
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