(19)
(11) EP 0 818 280 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.05.1998 Bulletin 1998/20

(43) Date of publication A2:
14.01.1998 Bulletin 1998/03

(21) Application number: 97305041.2

(22) Date of filing: 09.07.1997
(51) International Patent Classification (IPC)6: B25C 1/08
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 12.07.1996 US 679526
05.06.1997 US 

(71) Applicant: ILLINOIS TOOL WORKS INC.
Glenview, Illinois 60025 (US)

(72) Inventors:
  • Velan, Michael
    Mt. Prospect, Illinois (US)
  • Bolger, Richard P.
    Schaumburg, Illinois (US)
  • Dewey, George G.
    Palatine, Illinois (US)
  • Wendling, E. Jonathan
    Algonquin, Illinios (US)

(74) Representative: Rackham, Stephen Neil 
GILL JENNINGS & EVERY, Broadgate House, 7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB)

   


(54) Powered fastener driving tool


(57) A fastener detection system (70) is provided for both internal combustion and powder actuated fastener driving tools (10). A sensor (54) disposed at a portion of a fastener supply path (38) detects the presence or absence of a fastener (46). An indicator (60) notifies an operator when the sensor (54,55) detects the absence of a fastener. In the combustion tool (10), either or both of fuel delivery and combustion ignition may alternatively or also be disabled when no fastener (46) is detected.






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