Syringe pressure calibration reference

Details Syringe pressure calibration reference Syringe pressure calibration reference

1987-11-16

1989-03-28

Myracle, Jerry W.

Measuring and testing

Instrument proving or calibrating

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

73 4V, G01L 2700

Patent

active

048153133

ABSTRACT:
A compact, inexpensive, and lightweight pressure calibrator and a method for calibrating pressure monitoring devices. The pressure calibrator (10) comprises a plunger (14) sized to slide snugly within a hypodermic syringe barrel (12). Included within the plunger are pressure transducer (56), a microprocessor (54) and other electronic components (62). A digital display (30) disposed within the side of the plunger is operative to display the pressure developed within the syringe barrel (12) as the operator moves the plunger. "O" rings (28) provide a hermetic seal between the plunger and the internal bore (16) of the syringe barrel. A tube (22) is connected to the output port (20) of the syringe and provides fluid communication between the syringe and a pressure monitoring device (26) being calibrated.

REFERENCES:
patent: 2576687 (1951-11-01), Krehbiel
patent: 4051712 (1977-10-01), Zias et al.
patent: 4384470 (1983-05-01), Fiore
patent: 4658829 (1987-04-01), Wallace
patent: 4664635 (1987-05-01), Hermann

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