Electrical programmer

Details Electrical programmer Electrical programmer

1987-05-29

1988-07-05

Scott, J. R.

Electricity: circuit makers and breakers

Retarded

Clock train

200 38R, 200 38B, H01H 700, H01H 4300

Patent

active

047556358

ABSTRACT:
A electrical programmer (10, 120) is provided that features a first gear (18) that is rotated at a uniform rate by a drive source (16) and operative to rotate a driven gear (30) and an intermediate member (20) which, in turn, respectively operate to rotate a second cam (38) uniformally and a first cam (52) intermittently to open and close a first switch as a function of its uniform rotation; and, cam (52) is operative to open and close a second switch as a function of its intermittent rotation. Programmer (10, 120) preferably includes a rotary drum (110) operable to engage a plurality of electrical contacts in conjunction with the operation of the first and second sub-interval switches.

REFERENCES:
patent: 4500212 (1985-02-01), Wojtanek
patent: 4523062 (1985-06-01), Mahon
patent: 4536626 (1985-08-01), Wojtanek
patent: 4577179 (1986-03-01), Chambers et al.
patent: 4599499 (1986-07-01), Duve

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