Electronic scale load cell protector

Details Electronic scale load cell protector Electronic scale load cell protector

1977-03-10

1978-09-19

Miller, Jr., George H.

Weighing scales

Means holding load-driven element against motion

At transmission mechanism

177159, G01G 2302

Patent

active

041147090

ABSTRACT:
An electronic scale is provided having a frame to which a load cell is secured. The scale further includes a weight receiving means, a first transmission linkage affixed to the cell and a second weight transmission linkage affixed to the weight receiving means. A preloaded coil spring extends between the linkages. The coil spring is preloaded by a force slightly less than the maximum force to which the load cell can safely be subjected so that when subjected to a force, no change in the overall length of the spring occurs until the preloaded force is exceeded. A stop member is affixed to one of the linkages to engage portions of the frame which extend in the path of movement of that linkage when the spring extends.

REFERENCES:
patent: 973909 (1910-10-01), Benson
patent: 1654648 (1928-01-01), Hem
patent: 2648534 (1953-08-01), Mettler et al.
patent: 3561553 (1971-02-01), Blubaugh
patent: 4058179 (1977-11-01), Price

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