Pressure standard

Details Pressure standard Pressure standard

1992-02-06

1993-11-09

Woodiel, Donald O.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

73744, G01L 716, G01L 2700

Patent

active

052592359

ABSTRACT:
A differential pressure gage apparatus is disclosed which utilizes two pistons movable within three bores to produce accurate differential pressures. An inner piston carried by an outer piston has sufficient length to extend into all bores at once.

REFERENCES:
patent: 3034357 (1962-05-01), Brown
patent: 3267719 (1966-08-01), Wagner et al.
patent: 3961533 (1976-06-01), Bennett
"DHL Pressure Standards", D.H. Instruments, Inc., 10 pages, technical bulletin.
Ruska Technical Bulletin entitled "Model 5201, 0.04% Rdg. Hydraulic Deadweight Tester", 6 pages Ruska Instrument Corporation.
Ruska Technical Bulletin entitled "Model 2492, Automated, Deadweight Gage", 4 pages, 1988, Ruska Instrument Corporation.
Ruska Technical Bulletin entitled "Model 2465, 1991 psi, Gas-Lubricated Piston", Pressure Gage, 3 pages, Ruska Instrument Corporation, 1990.
Ruska Technical Bulletin entitled "Deadweight Gages", 2 pages, Ruska Instrument Corporation, 1989.
Ruska Technical Bulletin entitled "Digital Transfer Standards" 2 pages, Ruska Instrument Corporation, 1989.
Ruska Technical Bulletin entitled "Precision Pressure Standards" 6 pages, Ruska Instrument Corporation.

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