Integral parallelogram charge receiver and capacitive transducer
AssigneeTestut-Aequitas
InventorBernard J. Estavoyer
Life of this patent
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Abstract
The invention relates to a load receiver for weighing purposes, of the type comprising a stationary upright integral with a frame, a loaded upright integral with a load-carrying plate, and two arms 21 and 22 hinged onto these uprights in order to form therewith a deformable parallelogram. The two uprights and the two arms form an integral unit, the joints being defined by constrictions of the constituent mounting. A capacitor load transducer is formed by a first electrode mounted integrally with the stationary upright and by a second electrode mounted on the parallelogram elsewhere than on the stationary upright. The load receiver is of use notably for commercial balances.
Claims8
A load receiver comprising a stationary upright secured to a frame;
- a loaded upright secured to a load-carrying plate;
- two arms hinged into the uprights in order to form therewith a deformable parallelogram, the improvement wherein said two uprights and said two arms form an integral unit, the hinged joints being defined by constrictions of the constituent material of said integral unit, said integral unit having a portion thereof opposing an elastic response to the weight of a load placed on said load-carrying plate;
- a first electrode is secured with the stationary upright;
- and a second electrode is secured with a portion of said integral unit which is mobile under the effect of the load, said first and second electrodes defining a capacitive load transducer having a capacitive value related to the value of the load applied to said load carrying plate.
Dependencies are inferred from the claim text.