US3758191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadway marker
Assignee: Reflex Corp of Canada Ltd
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Filing: 1971-04-05
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Granted: 1973-09-11
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Expires: 1991-04-05
Abstract
Abstract A roadway marker comprising a substantially flat base plate and a housing mechanically interlocked to said base plate. The housing includes an outer surface that is inclined to the roadway when the marker is applied to the roadway. The outer surface has a recess into which a reflector is mounted. The reflector has a substantially smooth outer surface and a plurality of retroreflective prisms on the inner surface which are adapted to reflect light from the light beams of the automotive vehicle back to the eyes of the driver.
Inventors
- 👤 P Hedgewick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:03
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
146 words
A roadway marker comprising: a base portion of organic plastic material adapted to be secured to a roadway surface and having an end edge that extends transversely to the direction of travel over a roadway when the base portion is mounted thereon, said base portion having a lower, roadway engaging surfacE and an upper surface; a housing portion of organic plastic material formed with a reflector cavity for receiving a cube corner reflex reflector; and mounting means for detachably securing said housing portion to the upper surface of said base portion, said mounting means including an elongated projection formed on one of said portions, and a complementary recess in the other of said portions receiving said elongated projection in frictional engagement therewith, said reflector cavity being oriented in parallel relationship with said end edge of said base portion when said projection is received in said recess.
Claim 2
Dependent Claim
146 words
A roadway marker comprising: a base portion of organic plastic material adapted to be secured to a roadway surface and having an end edge that extends transversely to the direction of travel over a roadway when the base portion is mounted thereon, said base portion having a lower, roadway engaging surfacE and an upper surface; a housing portion of organic plastic material formed with a reflector cavity for receiving a cube corner reflex reflector; and mounting means for detachably securing said housing portion to the upper surface of said base portion, said mounting means including an elongated projection formed on one of said portions, and a complementary recess in the other of said portions receiving said elongated projection in frictional engagement therewith, said reflector cavity being oriented in parallel relationship with said end edge of said base portion when said projection is received in said recess.
Claim 3
Dependent Claim
27 words
A roadway marker as claimed in claim 1 wherein said mounting means further includes a least one threaded fastener extending between said base portion and housing portion.
Claim 4
Dependent Claim
34 words
A roadway marker as claimed in claim 1 wherein said projection is formed on the upper surface of said base portion and said recess is formed on the lower side of said housing portion.
Claim 5
Dependent Claim
72 words
A roadway marker as claimed in claim 3 wherein said projection and recess are parallel to said end edge of said base portion, and further including a pair of grooves in the upper surface of said base portion spaced from each other on opposite sides of said projection in parallel relationship therewith, and a pair of complementary ridges projecting from the lower side of said housing portion and received in said grooves.
Claim 6
Dependent Claim
42 words
A roadway marker as claimed in claim 4 wherein said housing portion includes a flat upper surface overlying said recess, and said mounting means further includes at least one screw extending through said flat upper surface into threaded engagement with said projection.
Claim 7
Dependent Claim
36 words
A roadway marker as claimed in claim 5 wherein said housing has an inclined end wall extending from said top surface toward said end edge, and said reflector cavity is formed in said inclined end wall.
Claim 8
Dependent Claim
41 words
A roadway marker as claimed in claim 6 further including a cube corner reflex reflector received in said reflector cavity, said reflector having a smooth outer surface extending across said cavity and an inner surface formed with cube corner reflector elements.
Claim 9
Dependent Claim
209 words
A roadway marker comprising: a base portion of organic plastic material adapted to be secured to a roadway surface and having an end edge that extends transversely to the direction of travel over a roadway when the base portion is mounted thereon; said base portion having a lower, roadway engaging surface and an upper surface; a projection formed on said upper surface and extending parallel to said end edge, said projection having a flat upper surface; a housing portion of organic plastic material having a flat upper surface and opposed inclined end surfaces extending downwardly from opposite edges of said upper surface; a recess formed beneath said upper surface complementary to said projection and receiving said projection with the walls of said recess in frictional engagement with the walls of said projection, said recess having a base abutting the upper surface of said projection; a reflector cavity formed on at least one of said end surfaces of said housing portion; a cube corner reflex reflector received in said cavity, said reflector having a smooth outer surface extending across said cavity and an inner surface formed with cube corner reflector elements; and fastener means extending through said upper surface of said housing portion and said upper surface of said projection.
Claim 10
Dependent Claim
209 words
A roadway marker comprising: a base portion of organic plastic material adapted to be secured to a roadway surface and having an end edge that extends transversely to the direction of travel over a roadway when the base portion is mounted thereon; said base portion having a lower, roadway engaging surface and an upper surface; a projection formed on said upper surface and extending parallel to said end edge, said projection having a flat upper surface; a housing portion of organic plastic material having a flat upper surface and opposed inclined end surfaces extending downwardly from opposite edges of said upper surface; a recess formed beneath said upper surface complementary to said projection and receiving said projection with the walls of said recess in frictional engagement with the walls of said projection, said recess having a base abutting the upper surface of said projection; a reflector cavity formed on at least one of said end surfaces of said housing portion; a cube corner reflex reflector received in said cavity, said reflector having a smooth outer surface extending across said cavity and an inner surface formed with cube corner reflector elements; and fastener means extending through said upper surface of said housing portion and said upper surface of said projection.
Claim 11
Dependent Claim
52 words
A roadway marker as claimed in claim 8 further including a pair of grooves in the upper surface of said base portion spaced from each other on opposite sides of said projection in parallel relationship therewith, and a pair of complementary ridges projecting beneath said housing portion and received in said grooves.
References Cited (Backward Citations)
US3409344A
Cited
US3485148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |