Electric balance for correcting misloading thereof

Abstract

In an electronic balance for loading having a balance scale ( 3 ) weighing system, display ( 19 ), control keyboard ( 21 to 26 ) and a digital processing electronic circuitry in which circuitry at least one memory is present for the weighed value shown in the display ( 19 ). A first additional key ( 25 ) is present in the control keyboard ( 21 to 26 ) upon the actuation of the key the weighed value shown in the display ( 19 ) and stored in the digital signal processing electronics is decreased and upon the first actuation of the key the weighed value displayed immediately previously is taken in addition into a first additional memory. Furthermore, a second additional key ( 24 ) is present in the control keyboard ( 21 to 26 ) upon whose actuation the weighed value displayed in the display ( 19 ) is taken into a second additional memory. By means of the decreasing key the balance operator can decreased the display from the too large actual value step-by-step to the correct theoretical value. Since the overload is generally only a few numerical steps of the balance display, this is achieved with a few steps. The balance can calculate the percentage overload by storing the balance display prior to the decreasing and during the conclusion of the decreasing and subsequently bring about the same overloading in the known manner for each of the remaining components. This creates the possibility even for simple loading balances without an electronic recipe memory of compensating an inadvertent overloading of a component by means of a overloading of the other components in equal percentage.

1. An electronic balance for weighing out quantities of ingredients based upon a recipe of ingredients comprising;
 an ingredient weighing container positioned on said balance;  
 electronic storage memory for the weight of a first ingredient in said weighing container;  
 electronic storage memory for the weight of a second ingredient in said weighing container;  
 electronic means to subtract the weight of the second ingredient called for in said recipe from the weight of the second ingredient in said weighing container;  
 means to determine the ratio of the weights of said ingredients called for in said recipe;  
 display means to show the amount of said first ingredient need to establish said ratio.  
 
     
     
       2. An electronic balance for mixing a plurality of components according to a formula, comprising:
   a weighing container, which receives the components to be mixed;        an electronic evaluation unit, including a recalculation mode for calculation of a quantity to be added for a component in the formula based on an overfill of a quantity of another component in the formula;        a display that displays a value of a quantity of a component presently added to the weighing container; and        a key that when operated decrements the displayed value of the quantity of the presently added component.     
     
     
       3. The electronic balance according to  claim 2 , wherein the recalculation mode calculates a supplemental quantity to be added to an existing quantity of a previously added component, the supplemental quantity being necessitated by an overfill quantity of the presently added component, and wherein the key is operated to decrement the displayed value of the quantity of the presently added component by the overfill quantity of the presently added component. 
     
     
       4. The electronic balance according to  claim 3 , wherein, the recalculation mode calculates the required supplemental quantity to be added to the existing quantity of the previously added component based on the overfill quantity of the presently added component as determined by the operation of the key to decrement the displayed value by the overfill quantity of the presently added component. 
     
     
       5. The electronic balance according to  claim 2 , wherein the recalculation mode calculates a required adjustment to a quantity of a component to be subsequently added as a result of an overfill quantity of a presently added component, and wherein the key is operated to decrement the displayed value of the quantity of the presently added component by the overfill quantity of the presently added component. 
     
     
       6. The electronic balance according to  claim 5 , wherein the recalculation mode calculates a supplemental quantity to be added to an existing quantity of a previously added component, based on the overfill quantity of the presently added component as determined by the operation of the key to decrement the displayed value by the overfill quantity of the presently added component. 
     
     
       7. The electronic balance according to  claim 2 , wherein the recalculation mode is based on a relationship;
     m   1 new   /m   1 formula   =m   2 action   /m   2 formula ,    
       
         wherein m 
         1 formula  
         is a formula weight of a first component; m 
         1 new  
         is a recalculated weight of the first component based on an overfill quantity of a second component in the formula; m 
         2 formula  
         is a formula weight of the second component; and m 
         2 actual  
         is the formula weight of the second component plus the overfill weight of the second component. 
       
     
     
       8. The electronic balance according to  claim 2 , wherein the weighing container is a platform. 
     
     
       9. The electronic balance according to  claim 2 , further comprising:
   a first electronic storage memory for a weight of a first component in the weighing container, and        a second electronic storage memory for a weight of a second component in the weighing container.     
     
     
       10. An electronic balance for weighing out quantities of ingredients based upon a recipe of ingredients, comprising:
   an ingredient weighing container positioned on the balance;        electronic storage memory for the weight of a first ingredient in the weighing container;        electronic storage memory for the weight of a second ingredient in the weighing container;        means to determine a ratio of the weights of the ingredients called for in the recipe; and        display means to show an amount of the first ingredient needed to establish the ratio.     
     
     
       11. An electronic balance for weighing out quantities of ingredients based upon a recipe of ingredients, comprising:
   an ingredient weighing container positioned on the balance;        electronic storage memory for the weight of a first ingredient in the weighing container;        electronic storage memory for the weight of a second ingredient in the weighing container;        electronics that determine a ratio of the weights of the ingredients called for in the recipe; and        a display that shows an amount of the first ingredient needed to establish the ratio.