Title (en)

A PROCESS AND DEVICE FOR CONTROLLING A SINGLE-ACTING PNEUMATIC PISTON

Title (de)

VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES EINFACH WIRKENDEN DRUCKLUFTZYLINDERS

Title (fr)

PROCEDE ET DISPOSITIF DE COMMANDE D'UN PISTON PNEUMATIQUE A ACTION UNIQUE

Publication

EP 1383702 B1 20060531 (EN)

Application

EP 02722683 A 20020326

Priority

• IT 0200195 W 20020326
• IT MO20010082 A 20010504

Abstract (en)

[origin: WO02090236A1] A valve group comprises: a nonnally-closed two-way, two-position delivery valve (7) which places an external source of pressurised gas in communication with a pressurisable chamber (4) of a piston; a nonnally-closed two-way discharge valve (8), which places the pressurisable chamber (4) in communication with a discharge (9); and a total discharge valve (12) which when opened contemporaneously with an opening of the discharge valve, sucks gas from the pressurisable chamber by a venturi effect. The invention can be used in a pneumatic jack of a bellows-type for raising objects, in particular for raising a side of a motor vehicle.

IPC 8 full level

B66F 3/24 (2006.01); B66F 3/35 (2006.01); F15B 11/044 (2006.01); F15B 11/08 (2006.01); F15B 15/14 (2006.01)

CPC (source: EP)

B66F 3/24 (2013.01); B66F 3/35 (2013.01); F15B 11/044 (2013.01); F15B 11/08 (2013.01); F15B 15/1476 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/41509 (2013.01); F15B 2211/421 (2013.01); F15B 2211/45 (2013.01); F15B 2211/46 (2013.01); F15B 2211/50518 (2013.01); F15B 2211/5153 (2013.01); F15B 2211/7052 (2013.01); F15B 2211/75 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02090236 A1 20021114; AT E327962 T1 20060615; DE 60211882 D1 20060706; EP 1383702 A1 20040128; EP 1383702 B1 20060531; IT MO20010082 A0 20010504; IT MO20010082 A1 20021104

DOCDB simple family (application)

IT 0200195 W 20020326; AT 02722683 T 20020326; DE 60211882 T 20020326; EP 02722683 A 20020326; IT MO20010082 A 20010504