Pressure measuring device

Details Pressure measuring device Pressure measuring device

1976-11-26

1977-12-27

Woodiel, Donald O.

Measuring and testing

Speed, velocity, or acceleration

With means for retaining reading

G01L 702

Patent

active

040647595

ABSTRACT:
The preferred embodiment of the invention disclosed herein comprises a closed glass member including a hollow pressure-sensing portion and a hollow pressure indicating portion communicating with the pressure-sensing portion. At least one wall forming the pressure-sensing portion is deformable and the pressure-sensing portion is filled with an incompressible fluid. In use, the glass member is placed in a capsule including a medium which when pressurized deforms the deformable wall which, in turn, exerts force on the incompressible fluid causing it to flow in the pressure-indicating portion. The level of the incompressible fluid in the pressure-indicating portion is indicative of the pressure in the medium.

REFERENCES:
patent: 1692360 (1928-11-01), Wolcott et al.
patent: 2660890 (1953-01-01), Fletcher
patent: 2801538 (1957-08-01), Matson
patent: 2931225 (1960-04-01), Pleuger
patent: 3210159 (1965-10-01), Crane et al.
patent: 3871211 (1975-03-01), Tal

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