Title: Dual battery ignition and start system for a vehicle

Abstract: A circuit arrangement for a vehicle or the like which permits either the vehicle battery or the battery of a camper connected to the vehicle to be selectively used for the ignition voltage of the vehicle engine and which permits either the vehicle battery or the camper battery, or both of these batteries connected in parallel to be used for the starter motor of the vehicle engine. The conventional electrical system of the vehicle is modified in that a single pole double throw switch is provided for selectively connecting the battery voltage input terminal of the vehicle ignition switch to either the vehicle battery or to the camper battery; a switch is provided in the line connecting the starter control voltage output terminal of the ignition switch to the control input of the vehicle starter relay; a further starter relay is provided for connecting the camper battery to the starter motor; and a further switch is provided for connecting the starter control voltage output terminal of the ignition switch to the control input of the further starter relay.

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Other info:

Inventors: Day, Oliver E.

Application Number: 491959
Filing Date: 1974-07-25
Publication_date: 1976-04-06
Assignee:
Primary Class(es): 320/117 307/10.7, 307/66, 320/127, 320/DIG34
Other Classes:
US Patent Ref:

1898370	Feb, 1933	Hughes et al.	320/6.
3457491	Jul, 1969	Black et al.	320/61.
3763415	Oct, 1973	Ownby	320/6.

Other Refs:
Primary Examiner: Miller, J. D.
Assistant Examiner: Hickey, Robert J.
Attorney: Spencer & Kaye