A DEVICE FOR BEATING AND MIXING OF LIQUIDS AND BATTERS

Abstract: A device for beating and mixing of liquids, batters and mixtures particularly while preparing food in large kitchens. The device comprises a pair of concentric rotatable shafts (1, 2), one (1) of which being rigidly connected to a housing (3), in which at least two beaters (4, 5) are rotatably mounted. The other shaft (2) is by way of a transmission means (6-9), which is liquid-tightly encased in the housing, arranged to give the beaters (4, 5) a rotary movement about their own respective axis.

Description: A DEVICE FOR BEATING AND MIXING OF LIQUIDS AND BATTERS Background of the invention The present invention relates to a beating and mixing device for liquids, mixtures and batters particularly while preparing food in large kitchens and which comprises a pair of concentric rotatable shafts. Through the Swedish patent no. 8100670-2 (publ. no. 425,210), see also the US patent no. 4,428,680, there is known a device for mixing of liquid and paste-like substances, comprising two mixing members rotatable in opposite directions and which can be raised and lowered. The device provides an effective mixture even of paste-like foods such as mashed potatoes, porridge, stews and the like. Previously known devices for beating and mixing of liquids, mixtures and batters for large kitchens and where one on one hand wants a rotation of the beater about its own axis and on the other hand a rotary movement thereof along the inside of the vessel, at which special transmission means are required for the movement of the beater, have a relatively complicated construction . The most important features of the invention The object of the present invention is to provide a device of the above mentioned kind, which is effective, has an uncomplicated construction, is easy to clean and in which the transmission means for the movement of the beaters are well protected from the liquid, mixture or batter in question. This has been achieved by the fact that one of the shafts is rigidly connected to a housing in which at least two beaters are rotatably mounted, and that the other shaft by way of a transmission means, which is liquid-tightly encased in the housing, is arranged to give the beaters a rotary movement about their own respective axis. Description of the drawings The invention will hereinafter be described more in detail with reference to an embodiment shown in the attached drawings . Fig. 1 is a vertical section through the device according to the invention, Fig. 2 is a section according to the line II-II in fig. 1. Description of the embodiment The beating and mixing device comprises a unit intended to be easily connected to i.e. the device shown in the Swedish patent no. 8100670-2 (see also US patent no. 4,428,680) and then replace the rotating mixers thereof. The unit comprises two concentric vertical shafts 1 and 2 intended to be rotatably mounted to a cantilever (not shown) of a support, in which drive- and transmission means are arranged for rotating the shafts 1 and 2. The cantilever is, vertically adjustable, so that the unit can take *a position above the vessel containing the liquid., batter or mixture to be mixed. The inner shaft 1 is at the bottom rigidly connected to a housing 3, in which two beaters 4 and 5 are rotatably mounted. The outer shaft 2 is rotatably mounted in the housing 3. Inside this there is also arranged transmission means for transmitting the rotary movement of the shaft 2 to the two beaters 4 and 5. The transmission means comprises a driving belt 6, preferably a cog belt 6 laid around wheels 7,8 and 9. Chain driving would of course also be possible. The shafts 1 and 2 are driven in opposite directions of rotation, at which the housing 3 is rotated in opposite direction with respect to the beaters 4 and 5. The unit 1-9 can during simultaneous rotation be given a vertical up- and downward movement. The transmission means 6-9 are well protected in the housing 3, which is preferably manufactured of a plastic material. The mixed liquid or batter can therefore not penetrate into the housing 3 and damage the transmission means. The whole unit consisting of the shafts 1 and 2, the housing 3 and the beaters 4 and 5 can besides be washed in a dish washing machine. An advantage with belt driving is that it requires no lubrication, at which possible condensate inside the housing cannot set free any oil. The invention is not limited to the embodiment shown, but can be varied within the scope of the claim.

Claims: CLAIMS A beating and mixing device for liquids, mixtures and batters particularly while preparing food in large kitchens and which comprises a pair of concentric rotatable shafts (1 ,2), c h a r a c t e r i z e d i n, that one of the shafts ( 1 ) is rigidly connected to a housing (3) in which at least two beaters (4,5) are rotatably mounted, and that the other shaft (2) by way of a transmission means (6-9) , which is liquid-tightly encased in the housing, is arranged to give the beaters (4,5) a rotary movement about their own respective axis.

Inventors: PERSSON GOERAN, PERSSON, GOERAN
Applicants: PERSSON GOERAN MASKIN AB, GOERAN PERSSON MASKIN AB
Application year: 1985
Main classification: A47J43
IPC codes: A21C1, A47J43, B01F7