Abstract: A fluid operated actuator (103) is provided that includes an actuator housing (104) and a piston assembly (109) including a piston (106) and a piston rod (108) movable within the actuator housing (104). The fluid operated actuator (103) further includes a plurality of detents (210) unified with the piston rod (108) and a lock (209) configured to move between a first and a second position. The lock engages the plurality of detents (210) when the lock (209) is in the first position or the second position to prevent the piston assembly (109) from moving with respect to the actuator housing (104). The lock further disengages from the plurality of detents (210) when the lock (209) is between the first and second positions to allow the piston assembly (109) to move with respect to the actuator housing (104).

Abstract: A working cylinder with end position damping which has at least one telescoping damping pin, which upon the approach to the corresponding end position of the piston plunges into a receiving opening, which closes off a damping chamber and forms a damping element, in an end part of the working cylinder or in the piston.

Abstract: A working cylinder with end position damping which has at least one telescoping damping pin, which upon the approach to the corresponding end position of the piston plunges into a receiving opening, which closes off a damping chamber and forms a damping element, in an end part of the working cylinder or in the piston.

Abstract: A method of manufacture of an abrasive body for use as a wear part, cutting tool insert or the like, includes the steps of providing a mixture comprising an organometallic polymer capable of being pyrolized to produce ceramic particles, and a mass of abrasive particles such as diamond or cubic boron nitride, applying heat to the mixture to cause the polymer to polymerize, and sintering of the pyrolized mixture to a coherent abrasive body.