Abstract: The invention relates to a damper unit (10) for a chassis (100) of a vehicle with levelling, comprising a hydraulic cylinder (1) having a container tube (2) which is filled with a damper fluid and in which a piston (3) is movably mounted and separates an upper container space (21) from a lower container space (22). The piston (3) comprises a first valve (41) through which the damper fluid flows when the piston (3) moves in a first direction A. The damper unit (10) further comprises an accumulator (5) and a check valve (6), wherein the accumulator (5) is connected to the container tube (2) via the check valve (6) in such a manner that, when the piston (3) moves in at least one direction, damper fluid is pumped through the check valve (6) into the accumulator (5).

Abstract: Disclosed are a method and device for sealing insulated glass blanks, wherein the insulated glass blank is moved substantially continuously through a sealing station. When sections of the edge joint of the insulated glass blank that are oriented transverse or oblique to the conveying direction are filled with sealing mass exiting from a filling nozzle, the filling nozzle is likewise moved in the conveying direction. When sealing mass is introduced from the filling nozzle into sections of the insulated glass blank that are parallel to the conveying direction, the filling nozzle is not moved in the conveying direction or is moved in the conveying direction at a velocity V2 deviating from the velocity V1 at which the insulated glass blank is moved.

Abstract: A method for producing a packaging unit includes combining individual products into a product formation, providing a shrink-wrap film having a perforation area that is susceptible to contact-free activation, and using the shrink-wrap film, securing the individual products to each other.