Abstract: A one-way hydraulic or pneumatic damper (1) of the invention comprising a cylindrical housing (2) closed at one end, in which a piston rod (3) is arranged in direction of the longitudinal axis, said piston rod (3) protruding through a cover (5) closing the second end of said housing and having on its other end that reaches into said housing a piston (4), and between the closed end of said housing (1) and said piston (4) there is a compression spring (9), wherein said piston (4) having an opening (12) running transversally to the longitudinal axis of said damper (1) is separated into a piston portion (13) and a valve portion (14), wherein said valve portion (14) of said piston (4) has a central hole (15), into which said piston rod (3) engages, the surface of the cross-section of said piston rod (3) being smaller than the surface of the cross-section of said hole (15) of said valve portion (14).

Abstract: A device for fastening an object, preferably a hinge, to an extruded profile, wherein the device comprises a sliding block that is connected in a known way with a hinge arm via webs on the upper surface of said block, and having one lateral surface on the bottom side ended by a longitudinal snap tooth, and another lateral surface ended in an undergrabbing prong, wherein said fastening device (N1, N2, N3, N4) comprises at least one pair of resilient elements (14, 22, 23, 26), wherein said resilient elements (14, 22, 23, 26) are arranged in cutouts (15) formed on the bottom side (4) of the sliding block (1) symmetrically with respect to the main axis (A) of the hinge. Said resilient element (14, 22, 23, 26) is arranged in said coutout (15) in a way to protrude from said sliding block (1) in the area of the lateral wall (3) of said sliding block (1).