Patent ID: 11971293
Assignee: SHEKEL SCALES (2008) LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A shelf assembly for tracking the weight of non-homogeneous products stored thereupon in a refrigerator, the shelf assembly comprising:
a. a weighing base comprising:
i. opposing load-cell bases detachably attached to respective left and right internal walls of the refrigerator,
ii. a rigid shelf frame, at least 25% of the horizontal surface area thereof being open to permit a vertical airflow therethrough;

b. a respective plurality of load cell assemblies fixedly attached to each of said opposing load-cell bases each load cell assembly comprising:
i. a load cell body having a free end and an anchored portion, and including a spring element and a receiving element, and
ii. a strain-sensing gage, bonded to said spring element and adapted to measure a strain therein; and

c. a shelf disposed upon said plurality of load cell assemblies, at least 50% of the horizontal surface area of the shelf being open to permit a vertical airflow therethrough, and,
wherein (i) said load cell body is attached to said horizontal member at said anchored portion of the load cell body, and (ii) said at least one receiving element is adapted to receive a vertical load from the shelf, said receiving element has (A) an unloaded disposition, and (B) a loaded disposition in which said at least one receiving element receives said vertical load, wherein in said loaded disposition, said free end attains a depressed position with respect to said free end in said unloaded disposition.