Multi-function time delay relay

Details Multi-function time delay relay Multi-function time delay relay

1981-09-04

1984-01-31

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307597, 307598, 3281301, H03K 1728, H03K 17296

Patent

active

044292783

ABSTRACT:
A multi-function time delay relay, with functions which can be changed from the outside, includes a timing oscillator and a logic network consisting of AND and OR stages and inverter stages as well as a flipflop interconnected in such a manner that two voltage inputs applied individually, separately or jointly, can bring about different modes of operation of the timing oscillator making it possible to realize different timing functions at any time and in any sequence, even during a running cycle, without having to intervene at the relay itself.

REFERENCES:
patent: 3826955 (1974-07-01), Fest
patent: 3963947 (1976-06-01), Bogel
patent: 4068179 (1978-01-01), Sample
patent: 4134027 (1979-01-01), Scott et al.

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