Control circuit for pneumatic shift register

Details Control circuit for pneumatic shift register Control circuit for pneumatic shift register

1977-04-14

1980-03-25

Cline, William R.

Fluid handling

Systems

Programmer or timer

137553, 235201ME, F16K 3700

Patent

active

041945336

ABSTRACT:
The invention provides a control circuit for a pneumatic shift register constituted by phase cells associated with an assembly of two threshold relays, each having a supply input and a control input which inhibits the output when the pressure that it receives is not lower than a pressure threshold which is low with respect to the control threshold of the memory contained in the cell.

REFERENCES:
patent: 2965134 (1960-12-01), Pouppirt, Jr.
patent: 3250470 (1966-05-01), Grubb
patent: 3364342 (1968-01-01), Jakubowski
patent: 3410312 (1968-11-01), Cogar
patent: 3561676 (1971-02-01), Amos
patent: 3621264 (1971-11-01), Bonneric
patent: 3633392 (1972-01-01), Bell
patent: 3720232 (1973-03-01), Corliss et al.
patent: 3732892 (1973-05-01), Bubula
patent: 3797537 (1974-03-01), Faessler et al.
patent: 3821537 (1974-06-01), O'Keefe
patent: 3875959 (1975-04-01), Bouteille

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