Pressure compensating diaphragm for a weighing cell

Details Pressure compensating diaphragm for a weighing cell Pressure compensating diaphragm for a weighing cell

1992-06-01

1994-01-18

Miller, Jr., George H.

Weighing scales

With casing

177211, G01G 2128, G01G 314

Patent

active

052801411

ABSTRACT:
A pressure compensating device includes a hermetically encapsulated weighing cell for neutralizing an excess pressure or a negative pressure within the encapsulation relative to a surrounding space. A pressure compensating diaphragm is connected to a protective housing in an essentially sealing manner, but without significant resistance and non-deformable relative to an initial tension. The pressure compensating diaphragm is of an extremely flexible material and the surface area thereof is large relative to the dimensions of the encapsulation. The pressure-compensating device preferably is a structural group mounted on the protective housing in which at least one pressure-compensating diaphragm is arranged so as to be protected against mechanical or chemical damage.

REFERENCES:
patent: 4285412 (1981-08-01), Wirth
patent: 4718287 (1988-01-01), Mishliborsky
patent: 4804053 (1989-02-01), Nordstrom
patent: 4957177 (1990-09-01), Hamilton et al.

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