Global Patent Index - EP 1731271 A1

EP 1731271 A1 20061213 - Pneumatic knocker and method of operating a pneumatic knocker

Title (en)

Pneumatic knocker and method of operating a pneumatic knocker

Title (de)

Pneumatisch arbeitender Klopfer sowie Verfahren zum Betreiben eines pneumatisch arbeitenden Klopfers

Title (fr)

Dispositif batteur pneumatique ainsi que procédé de fonctionnement d'un dispositif batteur pneumatique

Publication

EP 1731271 A1 20061213 (DE)

Application

EP 05012390 A 20050609

Priority

EP 05012390 A 20050609

Abstract (en)

The tapper has an impact piston (9) forming a pressure chamber with a compressed air-supply between an impact plate (6) and the piston and another pressure chamber with a compressed air-supply between a cover (15) and the piston. The cover is provided with an opening (19), whose surface is smaller than the cross sectional area of the piston such that the piston seals the opening in an end position that moves away from the plate. An independent claim is also included for a method for operating a pneumatically-operating tapper.

IPC 8 full level

B25D 9/18 (2006.01); B65D 88/66 (2006.01)

CPC (source: EP US)

B25D 9/18 (2013.01 - EP US); B65D 88/66 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR LV MK YU

DOCDB simple family (publication)

EP 1731271 A1 20061213; AT E409552 T1 20081015; DE 502006001658 D1 20081113; DK 1731272 T3 20090216; EP 1731272 A2 20061213; EP 1731272 A3 20071114; EP 1731272 B1 20081001; ES 2317364 T3 20090416; JP 2006341370 A 20061221; PL 1731272 T3 20090529; US 2006278415 A1 20061214; US 7607490 B2 20091027

DOCDB simple family (application)

EP 05012390 A 20050609; AT 06011983 T 20060609; DE 502006001658 T 20060609; DK 06011983 T 20060609; EP 06011983 A 20060609; ES 06011983 T 20060609; JP 2006169284 A 20060524; PL 06011983 T 20060609; US 44920606 A 20060607