Multiple disc pressure responsive control device

Details Multiple disc pressure responsive control device Multiple disc pressure responsive control device

H - Electricity

01

H

306/206

H01H 35/34 (2006.01)

Patent

CA 1270024

Pressure Control Device Abstract A pressure responsive control device having a pressure housing assembly defining a pressure chamber, an actuable controller fixed to the housing assembly and, a pressure transducer hermetically closing the pressure chamber. The transducer includes plural duplicate snap acting pressure responsive diaphragms, a diaphragm control plate hermetically bonded to the diaphragms and a support member hermetically joined between the control plate and the housing assembly. The diaphragms each are formed from thin sheets of spring metal and includes a central dome section having a surface finish less than 6 microinches A.A. on both sides. The diaphragms are nested together so that confronting faces of the dished sections are engaged when the diaphragms flex.

514459

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