US 11,892,340 B2
Weight scale with centralized lever supported receiving tray
Bradley J. Huntzinger, Columbus, OH (US); James D. Cook, Columbus, OH (US); and Bhim P. Khanal, Blacklick, OH (US)
Assigned to Honeywell International Inc., Morris Plains, NJ (US)
Filed by Honeywell International Inc., Morris Plains, NJ (US)
Filed on Feb. 28, 2020, as Appl. No. 16/805,450.
Prior Publication US 2021/0270665 A1, Sep. 2, 2021
Int. Cl. G01G 21/14 (2006.01); G01G 3/13 (2006.01); G01G 21/24 (2006.01); G01G 19/42 (2006.01)
CPC G01G 21/14 (2013.01) [G01G 3/13 (2013.01); G01G 21/24 (2013.01); G01G 19/42 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A weight measurement device comprising:
a housing;
a receiving tray;
a lever assembly configured to receive a weight force from the receiving tray and generate a collective lever force corresponding to the weight force, the lever assembly comprising a plurality of levers, wherein each lever of the plurality of levers extends from a respective first side of the receiving tray, underneath a central portion of a bottom surface of the receiving tray, towards a respective opposite side of the receiving tray, wherein each lever of the plurality of levers is at least substantially fixed to the housing at a respective first lever end and extends from the respective first lever end to a respective second lever end along a respective horizontal plane across at least a portion of an internal housing portion defined by the housing, and wherein each lever of the plurality of levers is configured to receive a partial weight force from the receiving tray at the respective second lever end, and wherein the lever assembly further comprises a lever alignment component configured to partially constrain the movement of each of the plurality of levers; and
a force sensor configured to generate force sensor data based at least in part on the collective lever force,
wherein the force sensor is configured to define a fulcrum point along each of the plurality of levers and at a point on a vertical lever alignment with the lever alignment component,
wherein a portion of each of the plurality of levers extends through the lever alignment component such that the plurality of levers is arranged in a vertical stack configuration, and
wherein the fulcrum point of each of the plurality of levers is at least substantially aligned with the vertical lever alignment axis that corresponds to a central axis of the weight measurement device.