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US 4,336,819 AGranted
Pneumatic converter
AssigneeYokogawa Electric Works, Ltd.
InventorTadashi Nishihara
Life of this patent
Estimating the term…
Abstract
A pneumatic converter comprising a bellows having in its interior a coupling plate connecting the two ends of the bellows together at a position offset from the center axis of the bellows.
Claims8
A pneumatic instrument for use in instrumentation systems for developing an output force or displacement proportional to an input fluid pressure, said instrument comprising:
- a bellows having an end plate movable in response to changes in the bellows internal pressure;
- an output member for said instrument located outside of said bellows and connected to an external portion of said end plate for movement therewith;
- and
- a coupling plate in said bellows extending between the two ends thereof and serving to couple said end plate directly to the other end of said bellows, said coupling plate being incompressible longitudinally and having at least a portion thereof which is transversely bendable, said coupling plate being offset from the center axis of said bellows to provide for tilting movement of said end plate, and corresponding movement of said output member, with changes in the bellows pressure.
1 more element
Dependencies are inferred from the claim text.