Multiple disc pressure responsive control device

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

1985-08-16

1987-05-19

Tolin, G. P.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83B, 92103M, 267159, 428687, H01H 3534

Patent

active

046670696

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.

REFERENCES:
patent: 2860208 (1958-11-01), Epstein
patent: 3585328 (1971-06-01), Fiore et al.
patent: 3816685 (1974-06-01), Fiore
patent: 4200776 (1980-04-01), Poling
patent: 4296287 (1981-10-01), Boulanger

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