Switching mechanisms for preparing control signals

Fluid handling – Systems – Programmer or timer

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13762564, G05D 1620

Patent

active

045679134

ABSTRACT:
A switching mechanism for preparing fluidic output signals of the kind comprising a first transformer acted upon by fluidic input signals which is connected in circuit in front of an electrical system which makes the converted signals available in the form of a control signal after expiration of a period presettable on said system, or of an event value. According to the invention, the electrical system comprises a combined switchable clock mechanism which is formed by a time function element (which is known per se) of the transistor or quartz type, and by a counter element (also known per se). The clock mechanism has post-connected to it a monostable multivibrator which has again connected to it a value means comprising a storage which may be activated by the transient control signal of the sweep stage for conversion of the electrical control signal of the clock mechanism into a fluidic output signal.

REFERENCES:
patent: 3931832 (1976-01-01), Holder
patent: 4288966 (1981-09-01), Aten
patent: 4345610 (1982-08-01), Herter

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