US4024497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer protector light system
Assignee: Individual
•
Filing: 1975-09-16
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Granted: 1977-05-17
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Expires: 1995-09-16
Abstract
Abstract A protector lighting system for use with tractor-trailer type vehicles having a unique arrangement for connecting additional lights to the existing light wiring of the trailer. The system is connected in such a manner that the additional protecting lights are only energized when the existing running lights of the trailer are energized, and the turn signal lighting system is energized.
Inventors
- 👤 Raymond A. Ruppel
- 👤 Joseph Z. Fagle
- 👤 Theodore W. Blagrave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:21
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/32
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
93 words
A trailer protector light system for use with an over-the-road machine having rear wheels which are difficult to observe at night, the system comprising: a. additional lights for mounting at the rear of the machine; and b. means for connecting and operating said lights from the existing lighting system of the machine which includes both the running lights wiring and the turn signal lights wiring so that the additional lights will be energized to a steady state only when both the normal running lights are on and the turn signal system is energized.
Claim 2
Dependent Claim
93 words
A trailer protector light system for use with an over-the-road machine having rear wheels which are difficult to observe at night, the system comprising: a. additional lights for mounting at the rear of the machine; and b. means for connecting and operating said lights from the existing lighting system of the machine which includes both the running lights wiring and the turn signal lights wiring so that the additional lights will be energized to a steady state only when both the normal running lights are on and the turn signal system is energized.
Claim 3
Dependent Claim
35 words
The device as defined in claim 1 wherein the means for connecting said lights include relay means for connection to the running light system wiring and the turn signal light system wiring of the machine.
Claim 4
Dependent Claim
33 words
The device as claimed in claim 2 wherein the relay means includes at least one time delay relay which has a longer delay time than the flasher internal of the turn signal system.
Claim 5
Dependent Claim
50 words
The device as claimed in claim 3 wherein two such relays are provided with one relay being connected between the running light system wiring and the right turn signal system wiring and the other relay is connected between the running light system wiring and the left turn light system wiring.
Claim 6
Dependent Claim
52 words
The device of claim 4 including third relay means connected to the running light system wiring and the turn signal system wiring so as to energize backup lights from this wiring only when both the running light system wiring has been energized together with the emergency position of the turn signal system.
Claim 7
Dependent Claim
88 words
In a tractor-trailer rig having running lights, turn and/or emergency lights, wiring system for said lights, cab mounted switches for activating said systems, the improvement comprising: additional lights mounted at the rear of the trailer; and means for connecting said additional lights to both the existing running light wiring system and the turn and/or emergency light wiring system so that the additional lights will only be energized to a steady state when both the normal running lights are on and the turn and/or emergency light system is energized.
Claim 8
Dependent Claim
88 words
In a tractor-trailer rig having running lights, turn and/or emergency lights, wiring system for said lights, cab mounted switches for activating said systems, the improvement comprising: additional lights mounted at the rear of the trailer; and means for connecting said additional lights to both the existing running light wiring system and the turn and/or emergency light wiring system so that the additional lights will only be energized to a steady state when both the normal running lights are on and the turn and/or emergency light system is energized.
Claim 9
Dependent Claim
19 words
The device as claimed in claim 6 wherein the connecting means includes relay means for controlling the additional lights.
Claim 10
Dependent Claim
36 words
The device as defined in claim 7 wherein the relay means includes at least one time delay type relay having a time period longer than the flasher unit period of the turn and/or emergency light system.
Claim 11
Dependent Claim
55 words
The device as claimed in claim 8 wherein two such time delay type relays are provided with one said relay being connected to the right turn signal wiring and the other said relay being connected to the left turn signal wiring, and both relays being connected to the running light wiring system for energization therefrom.
Claim 12
Dependent Claim
18 words
The device as claimed in claim 9 wherein a third relay means for energizing backup lights is included.
Claim 13
Dependent Claim
46 words
The device of claim 6 wherein the means for connecting the lights to the existing wiring system includes further means for actuating backup lights when both the running light wiring system is energized and the turn and/or emergency wiring system is energized in the emergency manner.
Claim 14
Dependent Claim
51 words
The device of claim 11 wherein the further means for connecting and operating the backup lights includes a relay connected between the running light wiring system and the turn signal wiring system so that when the turn signal wiring system is put in emergency position the backup lights will be energized.
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) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |