EP 0989925 A1 20000405 - PYROTECHNICAL UNSCREWING-SCREWING APPARATUS
Title (en)
PYROTECHNICAL UNSCREWING-SCREWING APPARATUS
Title (de)
PYROTECHNISCHES WERKZEUG ZUM SCHRAUBEN UND LOSSCHRAUBEN
Title (fr)
DEVISSEUSE-VISSEUSE PYROTECHNIQUE
Publication
Application
Priority
- FR 9801272 W 19980617
- FR 9707687 A 19970618
Abstract (en)
[origin: FR2764836A1] The invention concerns a pyrotechnical unscrewing-screwing device consisting essentially of a mass-hammer (6) launched at high speed on an anvil (10), whereof the lever arm is connected to the element to be unscrewed, unlocked, screwed or locked. The reaction is provided by an inertial compensating mass (15) containing the expansion chamber (7) acting as launch tube for the hammer (6). Said compensating mass (15) which is freely rotating is braked and brought back in its initial position by a spring (38). The operating speed of the hammer (6) is provided by the gases of a micro-generator of pyrotechnical gas (2) mounted on a re-chargeable cylinder (16).
IPC 1-7
IPC 8 full level
B25B 21/02 (2006.01); B25B 27/00 (2006.01)
CPC (source: EP)
B25B 21/02 (2013.01); B25B 27/0085 (2013.01)
Citation (search report)
See references of WO 9857780A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2764836 A1 19981224; FR 2764836 B1 20010302; AU 8220098 A 19990104; CA 2294322 A1 19981223; EP 0989925 A1 20000405; JP 2002504867 A 20020212; WO 9857780 A1 19981223
DOCDB simple family (application)
FR 9707687 A 19970618; AU 8220098 A 19980617; CA 2294322 A 19980617; EP 98932224 A 19980617; FR 9801272 W 19980617; JP 50388599 A 19980617