Liquidless seal connection

Details Liquidless seal connection Liquidless seal connection

2006-05-02

2006-05-02

Noori, Max (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S753000

Reexamination Certificate

active

07036382

ABSTRACT:
A pressure instrument may include a seal connection connecting a pressure gauge to a process. A pressure sensor located in a base of the seal connection is in data communication with the pressure gauge that is spaced apart from the pressure sensor. Embodiments are particularly applicable on sanitary seal connections or where a low measuring range or high accuracy is required. Embodiments can include, for example, digital pressure gauges, pressure transducers and transmitters with any seal connection.

REFERENCES:
patent: 4246908 (1981-01-01), Inagaki et al.
patent: 4283954 (1981-08-01), Echtler et al.
patent: 5303596 (1994-04-01), Rickman
patent: 5665920 (1997-09-01), Martin
patent: 5693887 (1997-12-01), Englund et al.
patent: 5875413 (1999-02-01), Vinci
patent: 0 825 428 (1998-02-01), None
Ashcroft Type 320 Quick-Connect Sanitary diaphragm Seal, Dresser Instrument Division Bulletin DS-5 (10/04).
Ashcroft Type 1032 Sanitary Pressure Gauge, Dresser Measurement & Control Bulletin SG-2 (6/96).
Ashcroft Type 311/312 All-Welded Midi Diaphragm Seal, Dresser Instruments Bulletin DS-8 (7/99).
Ashcroft Type 330 Flush Mini Diaphragm Seal Dresser Instruments Bulletin DS-9 (11/97).
International Search Report dated Sep. 16, 2004 for PCT/US2004/008142.
Project Data Sheet on Sensotec Sensor Model JP dated copyright 2002 and available from website www.sensotec.com.

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