US3745362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two relay control circuit for automotive vehicles
Assignee: Motors Liquidation Co
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Filing: 1972-05-22
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Granted: 1973-07-10
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Expires: 1992-05-22
Abstract
Abstract A circuit for enabling the accessories, starter solenoid, ignition circuit and gauges of an automotive vehicle includes an ignition switch with its movable contact connected to ground through a key and two output conductors, each in series with a relay, which are selectively energized, singly or together, according to the switch position. A switching network containing several switches, each operated by one of the relays, is arranged so that the low power accessories are energized when the switch is in the off position and one relay is energized, the starter solenoid ignition circuit and the gauges are energized when the switch is in the start position and both relays are energized, and all the utilization circuits are enabled when the switch is in the on position and the second relay is energized. An auxiliary circuit provides for horn operation and audible warnings when the vehicle lights are on or the key is inserted in the ignition switch when a vehicle door is open.
Inventors
- 👤 R Ballou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:29
CPC Classifications
B; B60; B60Q; B60Q9/00; B60Q9/001
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
157 words
A circuit for an automotive vehicle for operating an ignitioN circuit, a starter solenoid and accessories, including a power supply and comprising first and second conductors, first and second relays connected to the first and second conductors respectively, a switch means connected for selectively completing circuits with the conductors and the power supply for energizing the relays singly and in combination, and a switching circuit from the power supply to the ignition circuit, the starter solenoid and the accessories comprising contact means actuated by the first relay for supplying power to the accessories when the first relay alone is energized, and other contact means actuated by the first relay and contact means actuated by the second relay for supplying power to the starter solenoid and the ignition circuit when both relays are energized, the contact means actuated by the second relay supplying power to the ignition circuit and the accessories when the second relay only is energized.
Claim 2
Dependent Claim
157 words
A circuit for an automotive vehicle for operating an ignitioN circuit, a starter solenoid and accessories, including a power supply and comprising first and second conductors, first and second relays connected to the first and second conductors respectively, a switch means connected for selectively completing circuits with the conductors and the power supply for energizing the relays singly and in combination, and a switching circuit from the power supply to the ignition circuit, the starter solenoid and the accessories comprising contact means actuated by the first relay for supplying power to the accessories when the first relay alone is energized, and other contact means actuated by the first relay and contact means actuated by the second relay for supplying power to the starter solenoid and the ignition circuit when both relays are energized, the contact means actuated by the second relay supplying power to the ignition circuit and the accessories when the second relay only is energized.
Claim 3
Dependent Claim
183 words
A circuit for an automotive vehicle for operating an ignition circuit, a starter solenoid and two groups of accessories, including a power supply and comprising first and second conductors, first and second relays connected with one side of the power supply and connected to the first and second conductors respectively, a switch connected for selectively completing circuits with the conductors and the other side of the power supply for energizing the relays singly and in combination, and a switching circuit from the power supply to the ignition circuit, the starter solenoid and the accessories comprising contacts actuated by the first relay for supplying power to one group of accessories when the first relay alone is energized, other contacts actuated by the first relay and contacts actuated by the second relay for supplying power to the starter solenoid and the ignition circuit when both relays are energized, and means including the contacts actuated by the second relay and normally closed contacts of the first relay for supplying power to the ignition circuit and both groups of accessories when the second relay only is energized.
Claim 4
Dependent Claim
183 words
A circuit for an automotive vehicle for operating an ignition circuit, a starter solenoid and two groups of accessories, including a power supply and comprising first and second conductors, first and second relays connected with one side of the power supply and connected to the first and second conductors respectively, a switch connected for selectively completing circuits with the conductors and the other side of the power supply for energizing the relays singly and in combination, and a switching circuit from the power supply to the ignition circuit, the starter solenoid and the accessories comprising contacts actuated by the first relay for supplying power to one group of accessories when the first relay alone is energized, other contacts actuated by the first relay and contacts actuated by the second relay for supplying power to the starter solenoid and the ignition circuit when both relays are energized, and means including the contacts actuated by the second relay and normally closed contacts of the first relay for supplying power to the ignition circuit and both groups of accessories when the second relay only is energized.
Claim 5
Dependent Claim
281 words
A circuit for an automotive vehicle for operating an ignition circuit, a starter solenoid, and first and second groups of accessories, including a power supply and comprising first and second conductors, first and second relays connected with one side of the power supply and connected to the first and second conductors respectively, a key operated ignition switch connected for selectively completing circuits with the conductors and the other side of the power supply for energizing the first relay when in a first switch position, the second relay when in a second switch position, and both relays when in a third switch position, the key forming a part of the switch and being in series with the power supply so that the circuits can be energized only when the key is inserted in the key operated switch, and a switching circuit from the power supply to the ignition circuit, the starter solenoid and the accessories comprising normally open contacts closed by the first relay for supplying power to one group of accessories through normally closed contacts of the second relay when the first relay alone is energized, normally open contacts closed by the second relay and normally open contacts in series with the starter solenoid and the ignition circuit and closed by the first relay for supplying power to the starter solenoid and the ignition circuit when both relays are energized, and means operative when the second relay only is energized including the contacts closed by the second relay for supplying power to the ignition circuit, and normally closed contacts of the first relay and further normally open contacts closed by the second relay for supplying power to both groups of accessories.
Claim 6
Dependent Claim
281 words
A circuit for an automotive vehicle for operating an ignition circuit, a starter solenoid, and first and second groups of accessories, including a power supply and comprising first and second conductors, first and second relays connected with one side of the power supply and connected to the first and second conductors respectively, a key operated ignition switch connected for selectively completing circuits with the conductors and the other side of the power supply for energizing the first relay when in a first switch position, the second relay when in a second switch position, and both relays when in a third switch position, the key forming a part of the switch and being in series with the power supply so that the circuits can be energized only when the key is inserted in the key operated switch, and a switching circuit from the power supply to the ignition circuit, the starter solenoid and the accessories comprising normally open contacts closed by the first relay for supplying power to one group of accessories through normally closed contacts of the second relay when the first relay alone is energized, normally open contacts closed by the second relay and normally open contacts in series with the starter solenoid and the ignition circuit and closed by the first relay for supplying power to the starter solenoid and the ignition circuit when both relays are energized, and means operative when the second relay only is energized including the contacts closed by the second relay for supplying power to the ignition circuit, and normally closed contacts of the first relay and further normally open contacts closed by the second relay for supplying power to both groups of accessories.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |