Abstract: A system for checking the authenticity of a product, according to which the product is provided with an identification, the information of which is read out by a detector and is transmitted to a database via an information network and is compared with information stored there, wherein a decision regarding the authenticity or inauthenticity of the product is generated as a result of the comparison and the result of this decision is signaled at the location of the product. The product is a packaged foodstuff and the detector is arranged in a refrigerator in which the product is placed. The invention also relates to a system for optically identifying from above products on a transparent shelf surface.

Abstract: A vehicle transmission has one integrated brake, the inner rotating discs (4) being non-rotatably connected with a planet carrier (2) which has on its periphery, recesses (9) in which are situated cup-shaped elements (10) which scoop lubricant and transport it to the inner rotating discs (4).

Abstract: The invention concerns a drive shaft (1) having gear heads (9) in each one of which is mounted a liquid-cooled disc brake (19) and a planetary gear (18). In order to improve the cooling of the disc brakes (19), collection and guide elements (32) are coordinated with the bevel wheel (11) of a differential gear (12). The collection and guide elements (32) can consist of a trap (41) or of strippers (49, 50). A shifting of coolant in the gear heads (9) takes place during operation. The object of the invention is applied in particular to heavy utility vehicles such as wheel loaders where the disc brakes (19) are used frequently and must be reliably cooled.

Abstract: The invention concerns a liquid-cooled multi-disc brake (29) as used in transmission systems. The object of the invention is to improve the cooling of a multi-disc brake (29) exposed to high stresses owing to frequent use. In order to increase the throughput of coolant through the multi-disc brake (29) and to intensity the coolant circulation, one inner disc carrier (10) of the multi-disc brake (29) is designed as feeder wheel (48). Such a characterized multi-disc brake (29) is preferably used within the transmission system for heavy construction vehicles such as wheeled loaders, since liquid-cooled multi-disc brakes (29) in these utility vehicles are frequently used at full engine power. However, the use of the multi-disc brake (29) according to the invention is not limited to this particular application.