US4864298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driver alerting device
Assignee: A E VAN WIE MD PC PENSION PLAN
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Filing: 1988-04-01
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Granted: 1989-09-05
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Expires: 2008-04-01
Abstract
Abstract A driver alerting device includes a transceiver adapted for mounting at the rearward end of a vehicle for directing its wave output rearwardly of the vehicle. Return wave signals for many objects within the transceiver range are picked up and supplied to the transceiver by an antenna. Any resultant doppler shift signal is amplified for driving an audio alarm adapted for placement within the passenger compartment of the vehicle. The doppler shift signal also activates a solenoid which applies the air brakes of the vehicle. The circuit is adapted for operative electrical connection to the vehicle transmission or the like for activation only when the vehicle transmission is engaged in reverse gear.
Inventors
- 👤 Anthony E. Dombrowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:17
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/931; B; B60; B60Q; B60Q9/00; B60Q9/008; G01S13/02; G01S13/50; G01S13/52; G01S13/56; G01S2013/9317; G01S2013/93185; G01S2013/932; G01S2013/9327; G01S2013/93272; G01S2013/93275; Y; Y10; Y10S; Y10S367/00; Y10S367/909
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
170 words
A device for halting the movement of a vehicle, said vehicle having brakes, a transceiver comprising a micro-wave radar device using the doppler shift principle to detect the presence of a target within the transceiver range, means for supporting said transceiver at the rearward end of the vehicle for directing the wave output thereof rearwardly of the vehicle, means for supplying to said transceiver return wave signals from any target within the transceiver range, an intermediate frequency applifier operatively connected to said transceiver, said amplifier being operative to amplify and shape said return wave signals, means for electrically connecting said brakes to said transceiver for activation of said brakes in response to detection by said transceiver of return wave signals from any target within the transceiver range, and means for electrically connecting said transceiver to means associated with the reverse mechanism of the vehicle for activation of said transceiver in response to said vehicle being placed in reverse gear, said device being substantially unaffected, in operation, by varying weather conditions.
Claim 2
Independent Claim
170 words
A device for halting the movement of a vehicle, said vehicle having brakes, a transceiver comprising a micro-wave radar device using the doppler shift principle to detect the presence of a target within the transceiver range, means for supporting said transceiver at the rearward end of the vehicle for directing the wave output thereof rearwardly of the vehicle, means for supplying to said transceiver return wave signals from any target within the transceiver range, an intermediate frequency applifier operatively connected to said transceiver, said amplifier being operative to amplify and shape said return wave signals, means for electrically connecting said brakes to said transceiver for activation of said brakes in response to detection by said transceiver of return wave signals from any target within the transceiver range, and means for electrically connecting said transceiver to means associated with the reverse mechanism of the vehicle for activation of said transceiver in response to said vehicle being placed in reverse gear, said device being substantially unaffected, in operation, by varying weather conditions.
Claim 3
Dependent Claim
21 words
The device of claim 1 wherein a remote audible alarm is placed for placement within the passenger compartment of the vehicle.
Claim 4
Dependent Claim
28 words
The device of claim 1 wherein said transceiver includes a wave guide cavity and a gunn diode mounted in said wave guide cavity for transmitting wave output therefrom.
Claim 5
Dependent Claim
22 words
The device of claim 3 wherein said transceiver further includes a schottky barrier mixer diode which is operative as the receiver thereof.
Claim 6
Dependent Claim
21 words
The device of claim 1 wherein said means for supplying return wave signals to said transceiver comprises a high gain antenna.
Claim 7
Dependent Claim
21 words
The device of claim 1 wherein said means for supplying return wave signals to said transceiver comprises a low gain antenna.
Claim 8
Dependent Claim
24 words
The device of claim 1 wherein said means for supplying return wave signals to said transceiver comprises an antenna mounted directly to the transceiver.
Claim 9
Dependent Claim
17 words
The device of claim 1 wherein said intermediate frequency amplifier is a solid state multi-stage operational amplifier.
Claim 10
Dependent Claim
16 words
The device of claim 1 wherein said remote audible alarm comprises a solid state piezoelectric alarm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-04 | 2001-03-06 | 2001-09-05 | $7700.00 | Window Closed / Lapsed |