Patent ID: 8091938

Claim:
A pneumatic linear gripper, comprising: a gripper body with a chamber, a piston provided with seals and moving alternately in said chamber under the action of a fluid under pressure, and a pair of gripper jaws sliding in said gripper body and associated with said piston, and where the piston engages with the jaws through a translation means so that the alternating movements of the piston correspond to linear movements, in opposite directions, of the jaws to open and close the jaws, said gripper body being formed of two elements, or half-shells, mated face to face to define at the chamber for the piston and sliding guides for the jaws, and said piston being composed of a first component bearing seals and a second component associated with the first component and fixed with said translation means, wherein the first component of the piston is made of a plastic material and the second component is substantially plate-shaped and made of a metal, said two components being superimposed and centered one to another.