Title: Rotational line switch control

Abstract: A control mechanism for a sequential timer is disclosed. The mechanism includes an axially movable timer shaft which is associated with a timer shaft extension or control knob in such a way that initial movement of the control knob to select a particular position on the timing cycle will axially move the timer shaft to open a circuit in the timer. The open circuit prevents arcing of switch contacts and short pulsing of current through solenoids and motors.

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Inventors: Bolin, Donald E. (Galveston, IN, US)

Application Number: 797258
Filing Date: 1977-05-16
Publication_date: 1979-04-10
Assignee: The Scott & Fetzer Company (Kokomo, IN)
Primary Class(es): 200/38A 74/504, 200/38C, 200/38E
Other Classes:
US Patent Ref:

2665904	Jan, 1954	Lehmann	74/504.
2703347	Mar, 1955	Constantine	200/38.
2889419	Jun, 1959	Miller et al.	200/38.
3033054	May, 1962	Woolley	74/504.
3159255	Dec, 1964	Woolley	200/38.
3190418	Jun, 1965	Woolley	74/3.
3227826	Jan, 1966	Beare	74/504.
3388602	Jun, 1968	Shopsky	200/38.
3603749	Sep, 1971	Davis	200/37.
3866002	Feb, 1975	Underwood et al.	200/38.

Other Refs:
Primary Examiner: Scott, James R.
Assistant Examiner:
Attorney: McNenny, Pearne, Gordon, Gail, Dickinson & Schiller