Patent ID: 7938466

Claim:
A suction gripper device comprising a pipe for connecting a suction source to a suction gripper member, the pipe comprising a first channel formed by a downstream chamber ( 5 ) and by an upstream duct ( 7 ), a seat ( 9 ) being provided between the chamber ( 5 ) and the duct ( 7 ), a valve member ( 6 ) being mounted to move with clearance inside the chamber ( 5 ) between a bottom abutment ( 2 a , 22 ) and the seat ( 9 ), and a second channel ( 10 ) forming a calibrated bypass in parallel with the first channel and bypassing the seat ( 9 ), being of section that is smaller than the section (S) of the clearance that exists in the chamber ( 5 ) between its inside surface and the outside surface of the valve member ( 6 ) that can move therein, wherein the second channel ( 10 ) is formed through the center of the valve member ( 6 ).