Measuring and testing – Fluid pressure gauge – With protective separator
Patent
1996-09-18
1998-05-19
Oen, William L.
Measuring and testing
Fluid pressure gauge
With protective separator
G01L 700
Patent
active
057538190
ABSTRACT:
A pressure sensor including a housing having an interior surface forming a cavity, and a fill passageway communicating with the cavity. The fill passageway has opposite ends defining an axis extending between the ends, and one of ends defines a fill port spaced from the cavity. A pressure transducer is mounted on said interior surface. The pressure sensor also includes a sealing member moveable across the fill port in a direction transverse to the axis between a first position allowing fluid flow through the fill passageway and a second position closing the fill passageway such that the fluid is sheared off at the fill port to seal said cavity. Preferably, the fluid pressure within the cavity before sealing is substantially equal to the fluid pressure within the cavity after sealing.
REFERENCES:
patent: 4227418 (1980-10-01), Bonner et al.
patent: 4713969 (1987-12-01), Ishii
patent: 4754365 (1988-06-01), Kazahaya
patent: 4995266 (1991-02-01), Tobita et al.
patent: 5000047 (1991-03-01), Kato et al.
Cooney Robert C.
Day William J.
Kuberka Jeffrey A.
Mattes Michael F.
Rozgo Paul B.
Oen William L.
SSI Technologies, Inc.
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