B - Operations – Transporting – 25 – C
Patent
B - Operations, Transporting
25
C
B25C 1/04 (2006.01) B25C 1/00 (2006.01) B25F 5/00 (2006.01)
Patent
CA 2364772
A pneumatic fastener-driving tool is disclosed wherein not only rapid-fire bump-firing or trigger-firing modes of operation are permitted wherein either one of the trigger member and workpiece contact element components can be depressed before the other one of the trigger member and workpiece contact element components depending upon the particular mode of operation that the operator personnel chooses to employ, however, the tool is also rendered safe for transportation by operator personnel between job sites or work sites in view of the fact that if the workpiece contact element is not depressed, as a result of not being disposed in contact or engagement with a workpiece, within a predetermined period of time subsequent to the performance of the last fastener discharge or firing operation, then the tool is pneumatically disabled and can only be again enabled if the proper sequential activation of the tool is performed wherein the workpiece contact element must be engaged with a workpiece prior to the depression or activation of the tool trigger. Accordingly, after the expiration or lapse of the aforenoted predetermined period of time, should the operator personnel carry or transport the tool with the trigger member nevertheless depressed, the tool will not fire or discharge a fastener even if the workpiece contact element is depressed due to the fact that the tool has already been pneumatically disabled.
Finlayson & Singlehurst
Illinois Tool Works Inc.
LandOfFree
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