EP 0638395 B1 19980708 - Powder-actuated fastening tool
Title (en)
Powder-actuated fastening tool
Title (de)
Pulverkraftbetriebenes Setzgerät
Title (fr)
Outil d'enfoncement actionné par poudre
Publication
Application
Priority
DE 4313504 A 19930424
Abstract (en)
[origin: US5538172A] An explosive powder charge operated setting tool contains a channel (7) located between an inner piston guide (2) for a piston (1) and an outer housing part (6). At the rear end of the tool, the channel (7) continues in a carrier (3) and can be in communication with a cartridge receptacle (4) in the carrier (3). In its front region, the channel (7) is connected via a first opening (2c) in the piston guide (2) with a guide bore (2a) for the piston (1). Towards the rear end of the channel (7) there is a valve arrangement for forming a propellant gas storage space connected through the first opening (2c) to the guide bore (2a). Propellant gases within the storage space are compressed by the piston (1) driven in the setting direction and, after completion of the driving or setting procedure, serve to return the piston (1) back into its rear starting position by expansion of the storage space gases. After the driving operation, a second opening (3a) communicating with the ambient atmosphere vents the space rearwardly of the piston (1) so that the piston (1) can move without interference back into the rear starting position and, in addition, any residual gases can escape through the second opening into the ambient atmosphere.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B25C 1/14 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
US 5538172 A 19960723; AT E168060 T1 19980715; AU 5949894 A 19941027; AU 676008 B2 19970227; CA 2121619 A1 19941025; CA 2121619 C 20010417; CN 1045408 C 19991006; CN 1095982 A 19941207; DE 4313504 A1 19941027; DE 59406393 D1 19980813; DK 0638395 T3 19990419; EP 0638395 A1 19950215; EP 0638395 B1 19980708; ES 2118353 T3 19980916; FI 103264 B1 19990531; FI 103264 B 19990531; FI 941849 A0 19940421; FI 941849 A 19941025; HU 216486 B 19990728; HU 9401169 D0 19940728; HU T69246 A 19950828; JP H06320443 A 19941122; KR 100305976 B1 20011130; NO 304141 B1 19981102; NO 941480 D0 19940422; NO 941480 L 19941025; PL 173242 B1 19980227; TW 240189 B 19950211
DOCDB simple family (application)
US 23160494 A 19940422; AT 94810215 T 19940418; AU 5949894 A 19940415; CA 2121619 A 19940419; CN 94104976 A 19940422; DE 4313504 A 19930424; DE 59406393 T 19940418; DK 94810215 T 19940418; EP 94810215 A 19940418; ES 94810215 T 19940418; FI 941849 A 19940421; HU 9401169 A 19940422; JP 8649994 A 19940425; KR 19940008488 A 19940422; NO 941480 A 19940422; PL 30311894 A 19940422; TW 83103433 A 19940418