Global Patent Index - EP 0646056 B1

EP 0646056 B1 19961016 - PROCESS AND DEVICE FOR ACTUATING A PERCUSSIVE TOOL BY MEANS OF COMPRESSED AIR

Title (en)

PROCESS AND DEVICE FOR ACTUATING A PERCUSSIVE TOOL BY MEANS OF COMPRESSED AIR

Title (de)

VERFAHREN UND VORRICHTUNG ZUM BETÄTIGEN EINES SCHLAGWERKZEUGES MITTELS PRESSLUFT

Title (fr)

PROCEDE ET DISPOSITIF POUR ACTIONNER UN OUTIL DE PERCUSSION AVEC DE L'AIR COMPRIME

Publication

EP 0646056 B1 19961016 (DE)

Application

EP 93909977 A 19930513

Priority

  • DE 4216071 A 19920515
  • EP 9301193 W 19930513

Abstract (en)

[origin: US5769620A] PCT No. PCT/EP93/01193 Sec. 371 Date Nov. 15, 1994 Sec. 102(e) Date Nov. 15, 1994 PCT Filed May 13, 1993 PCT Pub. No. WO93/23211 PCT Pub. Date Nov. 25, 1993In a rotary compressor unit an inner and an outer rotor turn in an intermeshed rotation, a compression space and a suction space being formed alternately on radially offset sides of the inner rotor. A piston moves axially back and forth within a hollow space of the inner rotor. The inner rotor has a hollow space which has front and rear control channels which are alternately connected to the compression and suction spaces to drive the piston back and forth. The piston is used to actuate a percussion tool.

IPC 1-7

B25D 11/06

IPC 8 full level

B23B 45/16 (2006.01); B25D 9/08 (2006.01); B25D 11/06 (2006.01)

CPC (source: EP US)

B25D 9/08 (2013.01 - EP US); B25D 11/06 (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 5769620 A 19980623; AT E144175 T1 19961115; AU 4067993 A 19931213; CA 2135896 A1 19931125; DE 4216071 A1 19931118; DE 4216071 C2 19940324; DE 59304209 D1 19961121; EP 0646056 A1 19950405; EP 0646056 B1 19961016; WO 9323211 A1 19931125

DOCDB simple family (application)

US 34156594 A 19941115; AT 93909977 T 19930513; AU 4067993 A 19930513; CA 2135896 A 19930513; DE 4216071 A 19920515; DE 59304209 T 19930513; EP 9301193 W 19930513; EP 93909977 A 19930513