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Patent
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Patent
CA 1173069
ABSTRACT OF THE DISCLOSURE A load measuring device which operates with a small amount of vertical travel is provided herein. The load measuring device includes a base with a thin sealed, fixed volume reservoir for a load-transmitting material (e.g., a soft rubber disc) forming the lower portion of the base. A flexible diaphragm which seals the thin reservoir is provided which is in direct contact with the load-transmitting material in the reservoir. A platform is provided for applying a load directly to the diaphragm. Finally, a transducer including an integral diaphragm at the base thereof is held with such diaphragm in direct contact with the diaphragm to provide a reading which is proportional to the absolute value of the load. Thus, a sealed, shockproof load-transmitting cell is provided whose manufacture is greatly simplified and whose cost is reduced both in terms of time and material. Moreover, its installation in a weight scale is much simplified since there is no hydraulic connection needed between the load cell and the transducer.
384540
Borden Ladner Gervais Llp
Dyck Gerhard J.
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