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US3850536A Expired / Lapsed US ⏱️ 0.0 years remaining

Light-reflective road marker

Assignee: TRAFFIC STANDARD Inc
•
Filing: 1971-12-22
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Granted: 1974-11-26
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Expires: 1991-12-22
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Abstract

Abstract Road marker having a base cup with a resilient cover diphragm near the top, and an elongated, substantially flat and rigid light reflector lens with a rigid base mount in the middle of the diaphragm and below the top of the base cup, with the lens being normally in erect disposition on the diaphragm and extending above the top of the base cup, and the lens and diaphragm yielding to a vehicle tire or plow blade passing over the marker, with the lens yielding in tilting fashion to a passing plow blade.

Inventors

  • 👤 E Kone

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 08:59
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/50; E01F9/553; E01F9/565; E01F9/571

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 242 words
A road marker, providing a cup-like casing having a bottom and being open at the top; a molded resilient diaphragm peripherally anchored to the casing and extending across the casing to close the same; an elongated, substantially flat and rigid reflector lens with opposite faces; and a lens mount in said diaphragm, providing a rigid longitudinal holder permanently molded in said diaphragm substantially in the middle thereof and below said casing top whereby said holder imparts its rigidity to a portion of the diaphragm surrounding said holder, and a rigid longitudinal mounting base on and integral with said lens, with said base being received in and locked to said holder for holding said lens on said diaphragm with said faces in normally erect disposition thereon, and said lens being of a height normally to project with said faces above said casing top, said diaphragm portion, holder and lens including its locked base in said holder together forming a rigid unit tilting about a longitudinal axis of said holder on impact with one of said lens faces of a plow blade on its pass over said casing top, said diaphragm being on opposite sides of said portion thereof of adequate expanse to yield to the lens in its tilt out of the way of a passing plow blade, and said diaphragm being sufficiently spaced from said casing bottom to yield on the ride of a vehicle tire over said casing top and lens.
Claim 2
Dependent Claim 242 words
A road marker, providing a cup-like casing having a bottom and being open at the top; a molded resilient diaphragm peripherally anchored to the casing and extending across the casing to close the same; an elongated, substantially flat and rigid reflector lens with opposite faces; and a lens mount in said diaphragm, providing a rigid longitudinal holder permanently molded in said diaphragm substantially in the middle thereof and below said casing top whereby said holder imparts its rigidity to a portion of the diaphragm surrounding said holder, and a rigid longitudinal mounting base on and integral with said lens, with said base being received in and locked to said holder for holding said lens on said diaphragm with said faces in normally erect disposition thereon, and said lens being of a height normally to project with said faces above said casing top, said diaphragm portion, holder and lens including its locked base in said holder together forming a rigid unit tilting about a longitudinal axis of said holder on impact with one of said lens faces of a plow blade on its pass over said casing top, said diaphragm being on opposite sides of said portion thereof of adequate expanse to yield to the lens in its tilt out of the way of a passing plow blade, and said diaphragm being sufficiently spaced from said casing bottom to yield on the ride of a vehicle tire over said casing top and lens.
Claim 3
Dependent Claim 45 words
A road marker as in claim 1, in which said diaphragm portion is an integral longitudinal rib formation of given thickness on said diaphragm, and said diaphragm is of less than said given thickness over said expanse thereof on opposite sides of said diaphragm portion.
Claim 4
Dependent Claim 78 words
A road marker as in claim 2, in which said holder and lens base are of greater width than that of the lens across said faces and project beyond both of said faces, so that said diaphragm will over said expanse on one side of said diaphragm portion be deflected downwardly toward said casing bottom on the tilt of said lens to said one side of said diaphragm portion out of the way of a passing plow blade.
Claim 5
Dependent Claim 32 words
A road marker as in claim 3, in which said holder is a channel with a dovetail groove, and said lens base is of dovetail section and fittedly received in said groove.
Claim 6
Dependent Claim 96 words
A road marker as in claim 1, in which said casing has an annular rim open at said casing top, with said rim having below said top a ring-like diaphragm seat with spaced recesses, said diaphragm is in form of a disc, and there is provided a ring secured to said rim for clamping a peripheral diaphragm margin to said seat, with said peripheral diaphragm margin having integral finger projections form-fittedly received in said recesses, and said diaphragm having in said peripheral margin a molded-in wire ring with spaced loop formations extending into said finger formations.

References Cited (Backward Citations)

US1778110A Cited
US2073968A Cited
GB528622A Cited
GB545039A Cited
US2779240A Cited
CH372069A Cited
US3377930A Cited
US3392639A Cited
US3570377A Cited
US3717076A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-25 1978-05-27 1978-11-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-25 1982-05-27 1982-11-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-25 1986-05-27 1986-11-26 $7700.00 Window Closed / Lapsed

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