US4223980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety reflector for freight cars
Assignee: Individual
•
Filing: 1978-08-31
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Granted: 1980-09-23
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Expires: 1998-08-31
Abstract
Abstract This invention consists of a light reflecting sign for attachment to railway cars for the prevention of accidents when such cars are stalled or parked across minor, poorly lit country roads. It is in the shape of a horizontal "X" resembling a "railway crossing" sign the face of which is lined primarily with red flat plastic light-reflecting strips which are tipped at the ends of the sign with small yellow angular surface reflectors.
Inventors
- 👤 Bernard A. Shafar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:36
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/30; B60Q1/301
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
202 words
In combination, a railway freight car, a safety light-reflecting device attached to a side of said freight car and comprising a sign having a shape of an "X" in a horizontal position resembling a standard railway crossing warning sign, said sign comprising two elongate rectangular bars which cross each other at their centers, said bars having front, spaced, raised parallel tracks, reflecting material located in and filling the space between said front tracks, said reflecting material extending from a short distance away from the ends of the bars to the center of the intersection thereof, additional reflecting means between the front tracks at the outer ends of said bars beyond said reflecting material, and abutting the ends of the reflecting material, single rivet means at the intersecting ends of said reflecting material and affixing all four of the ends to said bars, hollow rivet means near the outer ends of each said bars and extending through said bars and affixing outer end portions of said reflecting material to said bars, said hollow rivet means having bores extending completely therethrough from one end to the other for receiving fastener means extending therethrough for affixing said sign to the side of the freight car.
Claim 2
Dependent Claim
202 words
In combination, a railway freight car, a safety light-reflecting device attached to a side of said freight car and comprising a sign having a shape of an "X" in a horizontal position resembling a standard railway crossing warning sign, said sign comprising two elongate rectangular bars which cross each other at their centers, said bars having front, spaced, raised parallel tracks, reflecting material located in and filling the space between said front tracks, said reflecting material extending from a short distance away from the ends of the bars to the center of the intersection thereof, additional reflecting means between the front tracks at the outer ends of said bars beyond said reflecting material, and abutting the ends of the reflecting material, single rivet means at the intersecting ends of said reflecting material and affixing all four of the ends to said bars, hollow rivet means near the outer ends of each said bars and extending through said bars and affixing outer end portions of said reflecting material to said bars, said hollow rivet means having bores extending completely therethrough from one end to the other for receiving fastener means extending therethrough for affixing said sign to the side of the freight car.
Claim 3
Dependent Claim
47 words
The combination according to claim 1 characterized by said reflecting material comprising a plurality of abutting colored retangular prisms, each having a centrally raised ridge with two downwardly sloping sides extending from the ridge, said ridges being at right angles to the longitudinal extent of said bars.
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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) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |