Patent ID: 6963036
Filing Date: 2005-11-08
Classification: G01G

Abstract:
1. In a static or dynamic weighing apparatus for weighing an object or item statically or moving in a linear path comprising: a weighing assembly including a base, two identical first and second active load cells rigidly mounted on the base, and a weighing platform rigidly mounted on both of the load cells, the improvement residing in said second active load cell being spaced from said first active load cell and having a 180° orientation relative to the first active load cell, and said apparatus further including a first and a second passive load cells spaced from each other and spaced from said first and second active load cells, said first and second passive load cells being mounted on said base, a rigid member rigidly fixed to said first and second passive load cells and said first and second passive load cells being inline with and spaced from said first and second active load cells and having the same orientation as first and second active load cell and and a passive load being fixed to said weighing platform and said load being representative of the weight of an object to be weighed by said first and second active load cells, and circuitry for subtracting the voltage waveform generated by the passive load on said first and second passive load cells from a voltage waveform generated by the weight of an object weighed by said first and second active load cells to obtain a more accurate weight of the object being weighed and for converting the voltage indicative of the weight of the object to an always present frequency train a portion of which is counted over a selected time period to obtain an averaged count indicative of the weight of the object weighed.