Pasteurizing machine

Abstract: A continuous automatic pasteurizing machine which automatically adjusts the level of the pasteurizing water in accordance with the products being pasteured. The machine comprises three water containers placed superposed to one another, the water being heated in the lower most container and being pumped to the upper most container, the bottom surface thereof being provided with apertures to permit the water to drip into the intermediate container in which a conveyor belt which carries the products travels. The level of the water being adjusted by an adjustable gate plate provided at one of the side walls of said intermediate container.

Description: The present invention relates to a system and apparatus for pasteurizing products. Pasteurizing food products is performed by pasteurizing machines all of which operate on substantially the same principle, namely immersion of the respective product in a vessel of hot water or within a steam container. Products which are lighter than the water float on the surface and are thus not subjected to optimal conditions. There are known continuous pasteurizing machines which employ the use of an endless belt on which the products are placed. The belt carries tie product through a bath of hot water. A further belt which is placed over the first belt ensures that the products are kept immersed in water during their travel through the water. It is understood that pasteurizing machines must include means which will ensure that the whole product is fully immersed in hot water during its travel through the pasteurizing bath. It is thus the object of the present invention to provide a continuous automatic pasteurizing machine. It is a further object of the present invention to provide a pasteurizing machine which will pasteurize the products by immersion as well as by spraying. It is yet a further object of the present invention to provide a machine which automatically will regulate the level of the water within the bath to ensure optimal heat coverage to the product. According to the invention there is provided a pasteurizing machine which automatically adjusts the level of the pasteurizing water and which comprises three water containers placed superposed to one another, the water being heated in the lower most container arid being pumped to the upper most container, the bottom surface thereof being provided with apertures to permit the water to drip into the intermediate container in which a conveyor belt travels, the level of the water being adjusted by an adjustable gate plate provided at one of the side walls of said intermediate container. The invention will now be described with reference to the annexed drawings in which: Fig. 1 is a perspective phantom Illustration of the pasteurizing machine according to the invention. Fig. 2 is a lateral elevational view, partly in section of the machine according to the invention. The machine comprises three water containers - an upper 1, intermediat 2 and lower most 3. A conveyor belt 5 is placed such that the upper run thereof travels within intermediate container 2. Side wall 6 of container 2 is provided with an opening and an adjustable gate like closure 7. The bottom of upper container 1 is provided with apertures 9 & cover 10 to cover container 1 and part of the space thereunder. The lower container 3 is provided with heating means (not seen) and a pump 12 which raises the water from said container via a conduit 13 into the upper container 1. The machine operates in the following manner: The food products which are to be pasteurized are placed on the conveyor belt 5, for which a drive (not shown) is provided, gate 7 is adjusted to such a level that the upper edge thereof is substantially flush with the food products. On activation of the machine, hot water from the lower container 3 is pumped up into container 1 by means of pump 12. The hot water drips through apertures 9 on the food products and into container 2, The water within container 2 will reach the height of gate 7 and then spill over back into container 3 where it is reheated. It is quite obvious that the food product will not float on the water as the water is too shallow. The food products will thus be treated all over from the water within container 2 and from above by the water dripping from container 1.

Claims: A pasteurizing machine comprising three water containers (1, 2, 3) placed superposed to one another, the water being heated in the lowermost container (3) and being pumped to the uppermost container (1), the bottom surface thereof being provided with apertures (9) to permit the water to drip into the intermediate container (2) in which a conveyor belt (5) travels, means being provided for adjusting the level of the water therein. A pasteurizing machine as claimed in Claim 1 wherein the level of the water is adjusted by an adjustable gate plate (7) provided at one of the side walls of said intermediate container (2). A pasteurizing machine as claimed in Claim 1 wherein said conveyor belt (5) carries the pasteurized goods. A pasteurizing machine as claimed in Claim 1 wherein the speed of travel of said conveyor belt (5) is adjustable.

Inventors: ESHTEIN ITZHAK, REUVENI ZOHAR, ESHTEIN, ITZHAK, REUVENI, ZOHAR
Applicants: ESHTEIN ITZHAK, REUVENI ZOHAR, ESHTEIN, ITZHAK, REUVENI, ZOHAR
Application year: 1991
Main classification: A23L3
IPC codes: A23L3