US4006702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road buoy
Assignee: Individual
•
Filing: 1975-08-28
•
Granted: 1977-02-08
•
Expires: 1995-08-28
Abstract
Abstract A road buoy generally comprises a weighted base and a collapsible marker portion. When the road buoy is in use, the collapsible portion, which is brightly painted for high visibility, is expanded to its full operational height. When the road buoy is being stored or transported, the collapsible marker portion is folded down to facilitate handling and to reduce the amount of storage space required. The collapsible marker portion, which can hold a warning flasher light, is removably attached to the weighted base permitting either portion of the road buoy to be easily repaired or quickly replaced if damaged.
Inventors
- 👤 Napoleon St. Cyr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:21
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/604; E01F9/615; E01F9/617; E01F9/623; E01F9/654; E01F9/688
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
A road buoy comprising a weighted base and a marker portion detachably secured thereto, said marker portion expandable to an operational height and collapsible with respect to said weighted base to reduce said road buoy to a compact size for storage and transportation thereof, wherein said collapsible marker portion is comprised of a continuous strip of resilient, semi-rigid material, said strip having a first inwardly disposed lip on the top edge thereof and a second outwardly disposed lip on the bottom edge thereof, said strip spirally coiled so that said first lip and said second lip of successive coils interlock when said collapsible marker portion is telescopically expanded.
Claim 2
Dependent Claim
108 words
A road buoy comprising a weighted base and a marker portion detachably secured thereto, said marker portion expandable to an operational height and collapsible with respect to said weighted base to reduce said road buoy to a compact size for storage and transportation thereof, wherein said collapsible marker portion is comprised of a continuous strip of resilient, semi-rigid material, said strip having a first inwardly disposed lip on the top edge thereof and a second outwardly disposed lip on the bottom edge thereof, said strip spirally coiled so that said first lip and said second lip of successive coils interlock when said collapsible marker portion is telescopically expanded.
Claim 3
Dependent Claim
57 words
A road buoy as defined in claim 1 wherein said weighted base is comprised of a circular base plate defining a well centrally disposed thereon and an integral cylindrical side wall upstanding from the periphery of said base plate wherein said base is generally cup-shaped, and wherein said well contains ballast material for weighting said weighted base.
Claim 4
Dependent Claim
51 words
A road buoy as defined in claim 2 and further comprising a cover, said cover comprising a circular plate secured to the upper edge of said spirally coiled strip and being adapted to be removably secured to the top of the cylindrical side wall of said weighted base to enclose said
Claim 5
Dependent Claim
35 words
collapsible marker portion, when collapsed, in said weighted base. 4. A road buoy as defined in claim 3 wherein said cover includes a depression defining an open pocket for receiving and holding a flasher light.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |