Watch-type pressure gauge

Details Watch-type pressure gauge Watch-type pressure gauge

1998-10-14

1999-11-16

Puller, Benjamin R.

Measuring and testing

Fluid pressure gauge

Piston

116271, 116285, G01L 716, G01L 1912, G01D 1100

Patent

active

059837284

ABSTRACT:
A pressure gauge has a base which is provided with a slot, and a sliding block located in the slot such that the sliding block is pushed to displace by a piston rod which is in turn pushed by the air pressure to be measured. The sliding block is provided with a plurality of teeth for actuating a rotary shaft and a hand fastened at one end thereof with the rotary shaft. The hand is actuated to turn to point at an air pressure reading. The base is provided with a threaded hole, an adjusting screw engaged with the threaded hole, and a spring which is engaged at one end thereof with the sliding block and at other end thereof with the adjusting screw. The pressure gauge is calibrated by adjusting the position of the adjusting screw in the threaded hole.

REFERENCES:
patent: 4773271 (1988-09-01), Mutou et al.
patent: 4827764 (1989-05-01), Hwang
patent: 4970899 (1990-11-01), Huang
patent: 5131275 (1992-07-01), Huang

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