Presses – Reciprocating press construction – With mechanical force multiplier
Reexamination Certificate
2011-08-16
2011-08-16
Nguyen, Jimmy T (Department: 3725)
Presses
Reciprocating press construction
With mechanical force multiplier
C100S048000, C074S089230
Reexamination Certificate
active
07997190
ABSTRACT:
Precise motion of the ram of a fastener press is controlled by high torque and low torque motors for high speed/low force and high force pressing of the ram by the ram, respectively. The high torque motor means drive passes through a bidirectional overrunning clutch. The clutch is controlled by the relative motion of the two separate motor drive speeds of which are regulated by a controller. The clutching motion is therefore controlled only by the relative speed of its drive versus driven components. This provides an extremely smooth and responsive transition between high speed/low force and low speed/high force operation of the ram so that the pressing cycle can be as fast and efficient as possible.
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Gregory Gore & Associates
Nguyen Jimmy T
PEM Management, Inc.
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