Patent ID: 6521847
Filing Date: 2003-02-18
Classification: G01G,Y10S

Abstract:
A scale for weighing moving loads, comprising:a) a weighing platform having an entrance end and an exit end; b) a tipping balance member having a first end and a second end, said tipping balance member being mounted for pivoting about a fulcrum between said first and second ends, said tipping balance member connected to said weighing platform such that downward movement of said platform entrance end causes said tipping balance member to pivot in a first direction and downward movement of said platform exit end causes said tipping balance member to pivot in a second direction opposite said first direction; c) a weighing device operatively connected to said fulcrum so as to measure weight acting on said fulcrum; d) a first limit stop limiting movement of said tipping balance member in said first direction; and e) a second limit stop limiting movement of said tipping balance member in said second direction; wherein f) the weight of a load entering said platform from said entrance end and moving toward said exit end initially pushes downwardly on said entrance end and thereby pivots said tipping balance member in said first direction and against said first limit stop such that a portion of the weight bears against said first limit stop; g) as the load continues toward said exit end of said platform the load enters a weighing zone wherein the weight is distributed between said entrance and exit ends such that said tipping balance member pivots in said second direction and off of said first limit stop such that the weight is measurable by said weighing device; and h) as the load moves out of said weighing zone, a sufficient portion of the weight is shifted to said exit end of said platform to move said exit end downwardly and thereby pivot said tipping balance member in said second direction and against said second limit stop such that a portion of the weight bears against said second limit stop.