Patent ID: 7751934
Filing Date: 2010-07-06
Classification: B01F,Y10S

Abstract:
1. A method for the use of a program controlled stirrer for producing pharmaceutical or cosmetic recipes, comprising an electric stirring unit whose revolutions can be controlled, which includes a stirring tool extending into a mixing receptacle, whereby the stirring unit is coupled to a micro-processor which determines the length of stirring time and stirring speed at the stirring unit in a program-controlled manner; the program controlled stirrer including a lifting unit, through which the relative position of the stirring tool in the mixing receptacle can be changed during the stirring process, whereby the method includes the following steps: inputting data into at least one data input device, the data defining at least the amount and the category of the recipe to be produced within a given tolerance range and the size of the mixing receptacle; inputting nonvariable data from a data memory which, for preset categories of recipes and sizes of mixing receptacles, contains basic values for the stirring time and stirring speed; determining the length of stirring time and stirring speed in order to produce the desired amount of the recipe by combining the variable and nonvariable data; determining the optimum stroke rate and lifting speed in order to produce the desired quality of the recipe by combining the variable and nonvariable data; converting the determined length of stirring time and stirring speed into a corresponding initial current or voltage value and controlling the stirring unit with these control parameters; converting the determined stroke rate and lifting speed into corresponding second current or voltage values; storing the control parameters adopted during the production of the recipe, together with identification data in a data memory; outputting the control parameters and/or identification data adopted, through a data output device, in electronic and/or printed form; and controlling the lifting unit with said second current or voltage values.