US4291295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle speed enforcement signal
Assignee: Individual
•
Filing: 1980-05-06
•
Granted: 1981-09-22
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Expires: 2000-05-06
Abstract
Abstract In an on-board sensible signal that is activated by the speedometer of a vehicle when the vehicle speed exceeds a predetermined threshold and that remains activated when the speed is reduced below this threshold, the improvement consists of a combination of timing and logic circuitry that deactivates the signal when and only when the vehicle stops and remains at rest for a predetermined period of time.
Inventors
- 👤 Robert D. Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:35
CPC Classifications
G; G01; G01P; G01P1/00; G01P1/12; G01P1/122; B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/50; B60Q1/54
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
A vehicle speed monitoring device, comprising: means, connected to the speedometer of said vehicle, for indicating that said vehicle has exceeded a predetermined speed; timing means, attached to said indicating means, for extending the activation period of said indicating means; means, connected to the speedometer of said vehicle, for generating a signal that is active when said vehicle is in motion; and logic means, connected to said signal generating means, to said indicating means, and to said timing means, for deactivating said indicating means when said vehicle stops and remains at rest for a predetermined period of time.
Claim 2
Dependent Claim
98 words
A vehicle speed monitoring device, comprising: means, connected to the speedometer of said vehicle, for indicating that said vehicle has exceeded a predetermined speed; timing means, attached to said indicating means, for extending the activation period of said indicating means; means, connected to the speedometer of said vehicle, for generating a signal that is active when said vehicle is in motion; and logic means, connected to said signal generating means, to said indicating means, and to said timing means, for deactivating said indicating means when said vehicle stops and remains at rest for a predetermined period of time.
Claim 3
Dependent Claim
37 words
A monitoring device as in claim 1 wherein said indicating means includes a latch that is set by an electrical signal generated by said speedometer and further includes a sensible signal that is activated by said latch.
Claim 4
Dependent Claim
29 words
A monitoring device as in claim 2 wherein said timing means is a monostable that is triggered by the resetting of said latch and that activates said sensible signal.
Claim 5
Dependent Claim
44 words
A monitoring device as in claim 3 wherein said logic means is disposed to set said latch when said vehicle is in motion while said monostable is active and to reset said latch when said vehicle is at rest while said monostable is inactive.
Claim 6
Dependent Claim
49 words
A monitoring device as in claim 2 wherein said timing means includes a counter that is driven by an oscillator contained in said speedometer, that is started by the resetting of said latch, that is stopped by reaching a predetermined count, and that activates said sensible signal while counting.
Claim 7
Dependent Claim
44 words
A monitoring device as in claim 5 wherein said logic means is disposed to set said latch when said vehicle is in motion while said counter is active and to reset said latch when said vehicle is at rest while said counter is inactive.
References Cited (Backward Citations)
US3203501A
Cited
US3800904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |