Pneumatic pressure gauge

Details Pneumatic pressure gauge Pneumatic pressure gauge

1986-11-13

1987-11-24

Chambers, A. Michael

Fluid handling

With indicator, register, recorder, alarm or inspection means

Fluid pressure responsive indicator, recorder or alarm

137227, 137230, 116 34R, 116137R, 116DIG7, F16K 3700

Patent

active

047081694

ABSTRACT:
An improved pneumatic pressure gauge used in inflating a pneumatic tire comprises an adapter means having a gas passage extending from a gas inlet end to a gas outlet end, and a gauge casing connected integrally to the adapter member. The gauge casing includes a gauge chamber, an opening intercommunicating the gas passage and the gauge chamber, a control chamber communicated with the gauge chamber, and a gas release passage opened to atmosphere and communicated with the control chamber. A first valve means is disposed to close the communication between the gas passage and the gauge chamber, and a second pressure responsive valve means is disposed in the control chamber to close the communication between the control chamber and the gas release passage. The valve means are opened when the pressure in the tire or the gas passage exceeds the predetermined pressure.

REFERENCES:
patent: 1196142 (1916-08-01), Schroeder
patent: 1482517 (1924-02-01), Kelsey
patent: 2334095 (1943-11-01), Hoghaug

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