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US3799686A Expired / Lapsed US ⏱️ 0.0 years remaining

Marker posts

Assignee: Individual
•
Filing: 1971-08-09
•
Granted: 1974-03-26
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Expires: 1991-08-09
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Abstract

Abstract Road marker posts are known which are resiliently bendable on impact therewith by a vehicle, thereby minimising the effects of such collisions. In this invention the post member is constructed of a plurality of post portions united together by means of a steel cable, thereby providing a post member with great resilience and strength. Should the post be destroyed on being run over by a vehicle it separates into a plurality of post portions which present much less a hazard to vehicles and pedestrians than those known marker posts in which this feature is not incorporated. Two alternative design of base means are described which enable a post of this type to be attached to any kind of road surface by the use of either one or the other.

Inventors

  • 👤 Clarence Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 21:46
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/627; E01F9/629

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 84 words
A road marker comprising: a base adapted to be secured to the surface of a roadway; an elongated standard made up of a plurality of post portions and a cap segment; at least one of the post portions being formed of a resilient plastics material; the cap segment, post portions and base being united together by means of a loop of a flexible core element passing through passageways formed within them; the ends of the flexible core element being secured independently of each other.
Claim 2
Dependent Claim 84 words
A road marker comprising: a base adapted to be secured to the surface of a roadway; an elongated standard made up of a plurality of post portions and a cap segment; at least one of the post portions being formed of a resilient plastics material; the cap segment, post portions and base being united together by means of a loop of a flexible core element passing through passageways formed within them; the ends of the flexible core element being secured independently of each other.
Claim 3
Dependent Claim 77 words
A marker post as claimed in claim 1, in which the turn of the loop is accommodated within the cap segment, the ends of the loop then passing downwards through passageways in the post portions, then through passageways in resilient washers embedded in and below a base plate, and then through nonresilient washers and spacer sleeves before passing through apertures in a flange, the ends of the flexible core element then being secured below the said flange.
Claim 4
Dependent Claim 117 words
A marker post as claimed in claim 1, in which the turn of the loop is accommodated within a conduit attached to a plate; the plate having holes through which attachment devices may be passed so as to secure the plate to the ground surface; the ends of the loop then passing upwards through passageways formed in the post portions forming the body of the post; the lowest post portion containing within its lower surface a cavity reciprocally shaped so as to enclose the conduit; the cap segment containing a plate perforated so as to allow passage of the ends of the flexible core element; the ends of the flexible core element being secured above the plate.

References Cited (Backward Citations)

FR1057125A Cited
FR1301141A Cited
US3355998A Cited
US3478714A Cited
US3485201A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-03-25 1977-09-24 1978-03-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-25 1981-09-24 1982-03-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-25 1985-09-24 1986-03-26 $7700.00 Window Closed / Lapsed

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