US4875799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic lane marking device
Assignee: Individual
•
Filing: 1988-09-06
•
Granted: 1989-10-24
•
Expires: 2008-09-06
Abstract
Abstract A night-visible traffic lane marking device for aircraft landing and takeoff strips, roadways and the like. The markers are installed embedded into the lane with their upper surfaces flush with the traffic surface. Reflective, fluorescent or phosphorescent elements are provided encased within a transparent uppermost layer. Each element extends vertically to provide a substantial profile for long distance visibility. The transparent covering extends a substantial distance from the reflective element in the direction of oncoming traffic, to increase long distance visibility.
Inventors
- 👤 George M. Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:07
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/576; E01F9/578; E01F9/553; E01F9/559
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
88 words
A night-visible traffic marking device for installation embedded into aircraft landing strips, vehicle roadways and the like, comprising: a generally planar plate member of transparent material installed with its upper surface flush with the traffic contacting surface; at least one night-visible object upstanding within the plate member to provide a substantial vertical profile from the point of view from an oncoming vehicle, the side of said object facing the vehicle being curved and including material selected to be highly visible when impinged upon by light from said vehicle.
Claim 2
Dependent Claim
88 words
A night-visible traffic marking device for installation embedded into aircraft landing strips, vehicle roadways and the like, comprising: a generally planar plate member of transparent material installed with its upper surface flush with the traffic contacting surface; at least one night-visible object upstanding within the plate member to provide a substantial vertical profile from the point of view from an oncoming vehicle, the side of said object facing the vehicle being curved and including material selected to be highly visible when impinged upon by light from said vehicle.
Claim 3
Dependent Claim
34 words
The marking device of claim 1, wherein: the transparent plate member extends a sufficient distance toward the direction of vehicle approach to enable light therefrom to fully illuminate the night-visible object from substantial distances.
Claim 4
Dependent Claim
20 words
The marking device of claim 2, further comprising: a lowermost base layer of resilient material supporting the transparent plate member.
Claim 5
Dependent Claim
25 words
The marking device of claim 3, wherein: the plate member is of molded transparent plastic; and the night-visible object is molded into the plate member.
Claim 6
Dependent Claim
24 words
The marking device of claim 3, wherein: the plate member includes a downwardly opening recess; and the night-visible object is installed within the recess.
Claim 7
Dependent Claim
37 words
The marking device of claim 5, wherein the nightvisible object comprises: a projection upstanding from the base layer in matching relationship with the recess; and the night-visible material is affixed to the upstanding surface of the projection.
Claim 8
Dependent Claim
21 words
The marking device of claim 6, wherein: a plurality of night-visible objects are provided spaced apart in the direction of traffic.
Claim 9
Dependent Claim
29 words
The marking device of claim 7, wherein: the transparent plate is elongate in the direction of traffic; and the night-visible object is elongate laterally to the direction of traffic.
Claim 10
Dependent Claim
25 words
The marking device of claim 8, wherein: the plate member and the base each comprise at least two elongate segments joined in abutted aligned relationship.
Claim 11
Dependent Claim
41 words
The marking device of claim 3, wherein: the highly visible material is selected from among light colored highway marking paint, light reflective prismatic material, reflective autocollimating beads, fluorescent material,phosphorescent material, and a combination of at least two of the preceding materials.
Claim 12
Dependent Claim
42 words
The marking device of claim 4, wherein: the highly visible material is selected from among light colored highway marking paint, light reflective prismatic material, reflective autocollimating beads, fluorescent material, phosphorescent material, and a combination of at least two of the preceding materials.
Claim 13
Dependent Claim
42 words
The marking device of claim 6, wherein: the highly visible material is selected from among light colored highway marking paint, light reflective prismatic material, reflective autocollimating beads, fluorescent material, phosphorescent material, and a combination of at least two of the preceding materials.
Claim 14
Dependent Claim
42 words
The marking device of claim 8, wherein: the highly visible material is selected from among light colored highway marking paint, light reflective prismatic material, reflective autocollimating beads, fluorescent material, phosphorescent material, and a combination of at least two of the preceding materials.
References Cited (Backward Citations)
US1364950A
Cited
US3011412A
Cited
US3627403A
Cited
US4284365A
Cited
US4136990A
Cited
US4303305A
Cited
US4685824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-23 | 1993-04-24 | 1993-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-23 | 1997-04-24 | 1997-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-23 | 2001-04-24 | 2001-10-24 | $7700.00 | Window Closed / Lapsed |