US3593238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle control unit for control system of automotive automatic transmission
Assignee: Nissan Motor Co Ltd
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Filing: 1969-10-29
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Granted: 1971-07-13
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Expires: 1989-10-29
Abstract
Abstract A device for controlling the throttle valve in an automotive engine having a rotary permanent magnet carried on the shaft of the throttle valve, a stationary electric magnet producing a longitudinal magnetic field and connected by a pin with an accelerator pedal, an electromagnet having a coil for producing a lateral magnetic field, a support for connecting the permanent magnet with the electromagnet, another magnet disposed opposite to the permanent magnet and rotatably engaged with the shaft. This device serves to open and close the throttle valve in the engine in response to an electric signal.
Inventors
- 👤 Yoichi Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:15
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; H01F7/145
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
82 words
A device for controlling the throttle valve for an automotive engine comprising a rotary permanent magnet connected to the shaft of the throttle valve, a stationary magnet connected to a pin of an accelerator pedal linkage for producing a longitudinal magnetic field, an electromagnet having a plurality of coils for producing a lateral magnetic field, a support connecting said stationary magnet to said electromagnet, and another support disposed on the opposite side of said stationary magnet and rotatably engaged with said shaft.
Claim 2
Independent Claim
82 words
A device for controlling the throttle valve for an automotive engine comprising a rotary permanent magnet connected to the shaft of the throttle valve, a stationary magnet connected to a pin of an accelerator pedal linkage for producing a longitudinal magnetic field, an electromagnet having a plurality of coils for producing a lateral magnetic field, a support connecting said stationary magnet to said electromagnet, and another support disposed on the opposite side of said stationary magnet and rotatably engaged with said shaft.
Claim 3
Dependent Claim
36 words
A device according to claim 1, further comprising an electromagnet for producing a longitudinal magnetic field and connected to a pin of an accelerator pedal linkage and having a plurality of coils for energizing said electromagnet.
Claim 4
Independent Claim
124 words
A device for controlling the throttle valve for an automotive engine comprising a rotary permanent magnet connected to the shaft of the throttle valve and having a pin, an electromagnet having a plurality of coils for producing a lateral magnetic field and also having a branch attached to a pin, a return spring having a coil portion and straight portions at both ends thereof, the coil portion of the return spring being wound around the shaft of the throttle valve, the straight portions of said return spring being so disposed as to attach from both sides of the pins, respectively, and a disc attached to the end of said shaft of the throttle valve by a snapring to prevent the spring from removing therefrom.
Claim 5
Independent Claim
124 words
A device for controlling the throttle valve for an automotive engine comprising a rotary permanent magnet connected to the shaft of the throttle valve and having a pin, an electromagnet having a plurality of coils for producing a lateral magnetic field and also having a branch attached to a pin, a return spring having a coil portion and straight portions at both ends thereof, the coil portion of the return spring being wound around the shaft of the throttle valve, the straight portions of said return spring being so disposed as to attach from both sides of the pins, respectively, and a disc attached to the end of said shaft of the throttle valve by a snapring to prevent the spring from removing therefrom.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |