Patent ID: 8820516
Filing Date: 2014-09-02
Classification: F26B

Abstract:
1. A device for pushing drying vessels, which contain a material to be dried and stand on one of the plurality of standing surfaces of the drying chamber of a freeze drying installation, in a movement direction for the purpose of unloading or loading the standing surface through at least one opening in the wall of the drying chamber, the device comprising: a carriage which forms a guiding edge, moveable in the movement direction, and is configured to exert an advancing effect on the drying vessels, which carriage is displaceably supported on guides which are disposed inside the drying chamber on both sides at a distance from the standing surface to be loaded or unloaded, which are in parallel with each other and with the movement direction and which form fixed guiding edges, wherein the guides consist of a plurality of segments disposed one behind the other and disposed so as to be displaceable in a common longitudinal direction, wherein a height position of the guides is fixed inside the drying chamber, wherein the guides are disposed so as to be displaceable while maintaining their mutually parallel alignment perpendicular to the edges of the standing surface allocated thereto and in parallel with the plane thereof; and at least one linear motor configured to produce a drive for the carriage and which imparts a non-positive connection to at least one of the guides, wherein a primary part of the linear motor, supported on the guide, is connected to the carriage and a secondary part of the linear motor is constructionally integrated into the guide.