Patent US3657720A successfully refreshed from Google Patents.
US3657720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote engine start and stop system
Assignee: Motors Liquidation Co
•
Filing: 1970-06-01
•
Granted: 1972-04-18
•
Expires: 1990-06-01
Abstract
Abstract A remote engine start and stop system for remotely starting and stopping a vehicle engine by a pair of single channel radio transceivers. An engine running detector senses the started or stopped condition of the vehicle engine and controls a trigger gate so that, when a signal is received, the vehicle engine is stopped if running and started if stopped. Prior to the cranking of the vehicle engine, a throttle actuator fully opens the vehicle throttle to permit the carburetor choke and a fast idle cam to be positioned for starting and accelerator pump shot to be ejected. A microswitch, which is responsive to the return of the throttle to a closed position, senses the failure of the throttle to return to its closed position to prevent the vehicle from being started when the throttle is stuck. In addition, an input override circuit prevents a signal from starting the vehicle engine during the time period when the vehicle engine is being stopped so as to prevent the clashing of the starter gears.
Inventors
- 👤 Anatol Avdenko
- 👤 Bruce C Erway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:05
CPC Classifications
B; B60; B60K; B60K28/00; B60K28/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
An apparatus for remotely starting a vehicle engine having a throttle biased to a closed position and a choke and for preventing the accidental racing of the engine when the throttle is stuck in an open position comprising, in combination, means remote from the vehicle for generating the engine start signal; means responsive to the engine start signal and coupled to the throttle for fully opening the throttle to set the choke and releasing the throttle; circuit means for starting the vehicle engine when said circuit means is energized; and switch means coupled to the circuit means and responsive to throttle position for energizing the circuit means when the throttle returns to a closed position for starting the vehicle engine, wherein the failure of the throttle to return to a closed position prevents the energization of the circuit means and therefore the starting of the vehicle engine.
Claim 2
Independent Claim
147 words
An apparatus for remotely starting a vehicle engine having a throttle biased to a closed position and a choke and for preventing the accidental racing of the engine when the throttle is stuck in an open position comprising, in combination, means remote from the vehicle for generating the engine start signal; means responsive to the engine start signal and coupled to the throttle for fully opening the throttle to set the choke and releasing the throttle; circuit means for starting the vehicle engine when said circuit means is energized; and switch means coupled to the circuit means and responsive to throttle position for energizing the circuit means when the throttle returns to a closed position for starting the vehicle engine, wherein the failure of the throttle to return to a closed position prevents the energization of the circuit means and therefore the starting of the vehicle engine.
Claim 3
Independent Claim
183 words
An apparatus for remotely starting a vehicle engine having a throttle biased to a closed position and a choke, comprising a radio sender for generating and sending an engine start signal; a radio receiver within the vehicle and responsive to the engine start signal for generating an output signal; means coupled to the radio receiver and responsive to the output signal for fully opening the throttle to set the choke and releasing the throttle, said means including a vacuum reservoir, a pneumatic motor coupled to the throttle and responsive to the admission of vacuum to open the throttle, timing means, and valve means responsive to the timing means for supplying vacuum from the vacuum reservoir to the pneumAtic motor to cause the pneumatic motor to open the throttle and responsive to the timing means for releasing the vacuum in the pneumatic motor to release the throttle; and means responsive to the return of the throttle to a closed position for starting the vehicle engine, wherein the failure of the throttle to return to a closed position prevents the starting of the vehicle engine.
Claim 4
Independent Claim
183 words
An apparatus for remotely starting a vehicle engine having a throttle biased to a closed position and a choke, comprising a radio sender for generating and sending an engine start signal; a radio receiver within the vehicle and responsive to the engine start signal for generating an output signal; means coupled to the radio receiver and responsive to the output signal for fully opening the throttle to set the choke and releasing the throttle, said means including a vacuum reservoir, a pneumatic motor coupled to the throttle and responsive to the admission of vacuum to open the throttle, timing means, and valve means responsive to the timing means for supplying vacuum from the vacuum reservoir to the pneumAtic motor to cause the pneumatic motor to open the throttle and responsive to the timing means for releasing the vacuum in the pneumatic motor to release the throttle; and means responsive to the return of the throttle to a closed position for starting the vehicle engine, wherein the failure of the throttle to return to a closed position prevents the starting of the vehicle engine.
Claim 5
Dependent Claim
44 words
The apparatus as claimed in claim 2 wherein the means responsive to the return of the throttle to a closed position for starting the vehicle engine includes a microswitch actuated by the return of the throttle to a closed position for starting the engine.
Claim 6
Independent Claim
212 words
An apparatus for remotely starting and stopping a vehicle engine comprising a radio sender for generating and sending a command signal; a radio receiver within the vehicle and responsive to the command signal for generating an output signal; engine starting means; engine stopping means; and means for sensing the started or stopped condition of the engine and responsive thereto for coupling the output signal to the engine starting means when the engine is stopped and to the engine stopping means when the engine is started, the means for sensing the started or stopped condition of the engine and responsive thereto for coupling the output signal to the engine starting means when the engine is stopped and to the engine stopping means when the engine is started including first one-way current passing means for supplying the output signal to the engine starting means, second one-way current passing means for supplying the output signal to the engine stopping means, means for back biasing the first one-way current passing means when the engine is started to prevent the output signal from passing to the engine starting means, and means for back biasing the second one-way current passing means when the engine is stopped to prevent the output signal from passing to the engine stopping means.
Claim 7
Independent Claim
212 words
An apparatus for remotely starting and stopping a vehicle engine comprising a radio sender for generating and sending a command signal; a radio receiver within the vehicle and responsive to the command signal for generating an output signal; engine starting means; engine stopping means; and means for sensing the started or stopped condition of the engine and responsive thereto for coupling the output signal to the engine starting means when the engine is stopped and to the engine stopping means when the engine is started, the means for sensing the started or stopped condition of the engine and responsive thereto for coupling the output signal to the engine starting means when the engine is stopped and to the engine stopping means when the engine is started including first one-way current passing means for supplying the output signal to the engine starting means, second one-way current passing means for supplying the output signal to the engine stopping means, means for back biasing the first one-way current passing means when the engine is started to prevent the output signal from passing to the engine starting means, and means for back biasing the second one-way current passing means when the engine is stopped to prevent the output signal from passing to the engine stopping means.
Claim 8
Independent Claim
192 words
An apparatus for remotely starting and stopping a vehicle engine having a throttle, choke and ignition system comprising a radio sender for generating and sending a command signal; a radio receiver within the vehicle and responsive to the command signal for generating an output signal; engine starting means; means for sensing a stopped condition of the engine and responsive thereto for coupling the output signal to the engine starting means, the engine starting means including means responsive to the output signal for fully opening the throttle to set the choke and releasing the throttle and means responsive to the return of the throttle to a closed position for starting the vehicle engine; engine stopping means; and means for sensing a started condition of the engine and responsive thereto for coupling the output signal to the engine stopping means when the engine is started, the engine stopping means including timing means for de-energizing the ignition system for a specified time duration required to stop the vehicle engine and for preventing the energization of the starter solenoid for the specified time duration to prevent energization of the starter while the vehicle engine is running.
Claim 9
Independent Claim
192 words
An apparatus for remotely starting and stopping a vehicle engine having a throttle, choke and ignition system comprising a radio sender for generating and sending a command signal; a radio receiver within the vehicle and responsive to the command signal for generating an output signal; engine starting means; means for sensing a stopped condition of the engine and responsive thereto for coupling the output signal to the engine starting means, the engine starting means including means responsive to the output signal for fully opening the throttle to set the choke and releasing the throttle and means responsive to the return of the throttle to a closed position for starting the vehicle engine; engine stopping means; and means for sensing a started condition of the engine and responsive thereto for coupling the output signal to the engine stopping means when the engine is started, the engine stopping means including timing means for de-energizing the ignition system for a specified time duration required to stop the vehicle engine and for preventing the energization of the starter solenoid for the specified time duration to prevent energization of the starter while the vehicle engine is running.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |