Pressure gauge for high pressure flow through diaphragm pump

Details Pressure gauge for high pressure flow through diaphragm pump Pressure gauge for high pressure flow through diaphragm pump

1986-05-29

1988-02-02

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Mounting and connection

73714, 417413, G01L 708

Patent

active

047222301

ABSTRACT:
A diaphragm pump is provided for pumping paint and similar substances at relatively elevated pressures (300 psi). A pressure sensor is provided for operating the pump in order to maintain the desired pressure. The pressure sensor is located adjacently first outlet passage and is provided with a deflector which deflects the fluid in the outlet passage over the surface of the sensor diaphragm. By providing continuous flow over the face of the sensor diaphragm, paint and similar substances are prevented from drying and/or clogging thereby preventing erratic operation or failure of the device. The connecting rod which is attached to the diaphragm has an outwardly extending and downwardly tapering support surface which supports the diaphragm when under the elevated pressures of which this unit is capable of operation. An upper support member is also provided for further support.

REFERENCES:
patent: 4454765 (1984-06-01), Lodge

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