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Pneumatic fastener driving tool and an electronic control system therefore

  • US 6,431,425 B1
  • Filed: 10/25/2000
  • Issued: 08/13/2002
  • Est. Priority Date: 10/21/1994
  • Status: Expired due to Term
First Claim
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1. An electronically controlled pneumatic fastener driving tool having:

  • a main tool cycling valve;

    at least one of a manual trigger and a workpiece responsive safety trip;

    an electronic control comprising a solenoid actuated remote valve associated with said main valve in such a way as to actuate said main valve when said remote valve is actuated by said solenoid;

    said electronic control further comprising a microprocessor, said microprocessor being programmed to provide at least one mode of operation for said tool, said microprocessor having at least one input from at least one of said safety trip and said trigger and an output to energize said remote valve solenoid when said at least one input satisfies said at least one mode;

    said at least one of said safety trip and said trigger being shiftable between unactuated and actuated positions;

    said at least one input from said at least one of said safety trip and said trigger having a switch incorporated therein; and

    said at least one of said safety trip and said trigger closing said switch when said at least one of said safety trip and said trigger is in its actuated position.

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