Patent ID: 8122812

Claim:
A piston and cylinder unit, comprising: a cylinder housing; a piston, said piston including an opening, at least one piston seal and an inner thread, said inner thread being located in said opening; a piston rod, said piston rod having an axis and including a protrusion, an outer thread and a second thread, said outer thread being located on said protrusion, said piston and said piston rod being connected by said inner thread and said outer thread; a securing element, said securing element being designed and arranged to substantially extend in the direction of the axis, said securing element including a thread, said securing element and said piston rod being connected by said thread of said securing element and said second thread of said piston rod, said securing element being designed and arranged to be active in an axial direction in a way to prevent rotational movement of said piston in a loosening direction, said inner thread of said piston and said outer thread of said piston rod being designed and arranged to be operated in a direction opposite to said thread of said securing element and said second thread of said piston rod, said securing element including a securing means against rotation in a loosening direction, said securing means including a stud, said stud being arranged in said piston to extend in a radial direction, said securing element including an actuation surface, said stud being connective to said actuation surface.