Blasting machine

Details Blasting machine Blasting machine

1975-06-02

1976-12-21

Hohauser, Herman

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

H02J 314

Patent

active

039990761

ABSTRACT:
A sequencing system for a series of control circuits; each of which has its own control switch. A signal of spaced apart pulses is communicated simultaneously to all control switches. Separate normally closed grounding switches are provided for all but the first of the series of control switches to make them inoperative. Each control circuit after the first is provided with a connection which opens its grounding switch in response to power flowing through the preceeding control circuit of the series.

REFERENCES:
patent: 3571605 (1969-08-01), Dobson et al.
patent: 3900739 (1975-08-01), Morawski et al.

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