Pressure gauge

Details Pressure gauge Pressure gauge

1990-01-25

1990-11-20

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Piston

G01L 716

Patent

active

049708996

ABSTRACT:
A pressure gauge of the type having a dial with a pointer includes a tubular pressure chamber body receiving a piston with a piston rod whose one end extending out of the pressure chamber body is provided with an adjustment screw thread. An L-shaped rod member extends between the pressure chamber body and a graduated plate of the dial and has a toothed end engaging with a transmitting gear which is connected to the pointer. The angled portion of the L-shaped rod member is provided with an adjustment screw hole to receive and engage with the outer threaded end of the piston rod. The pressure gauge has a reduced size and facilitates the adjustment of the pointer in case of fatigue of the urging spring.

REFERENCES:
patent: 4742714 (1988-05-01), Huang
patent: 4785670 (1988-11-01), Huang
patent: 4885940 (1989-12-01), Huang

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