# US 4,394,843 A · Self-righting traffic marker

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- Number: US 4,394,843 A
- Document ID: US4394843A
- Status: Granted
- Kind: A
- Application number: 06/222,323
- Filed: 1981-01-05
- Granted: 1983-07-26
- Earliest claimed: 1981-01-05
- Inventors: Gananath W. Ediriwira
- Web page: https://patentgrep.com/patent/US4394843A

## CPC

- E01F 9/629: {Traffic guidance, warning or control posts, bollards, pillars or like upstanding bodies or structures}
- E01F 9/654: in the form of three-dimensional [3D] bodies, e.g. cones; capable of assuming 3D form, e.g. by inflation or erection to form a geometric body
- E01F 9/688: Free-standing bodies
- E01F 9/70: Storing, transporting, placing or retrieving portable devices
- E01F: ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE

## Abstract

A portable self-righting traffic marker comprises a generally rigid body having a base on which the marker can rock and includes an outwardly flaring region merging with an integral upper part. The base is so weighted that in use the marker returns to its upright position by itself when it is knocked over.

## Claims

### Claim 1

A portable self-righting traffic marker comprising:
a generally rigid body having a base on which the marker can rock and an integral rigid upper part,
an outwardly flaring multi-faced region merging said base with said integral upper part,
said integral rigid upper part of said body comprising a plurality of contiguous generally flat outwardly flaring side wall portions which define a nesting facility, formed as a hollow upper region having an open top, whereby a plurality of said traffic markers can be nested, one within the other,
weight means for selectively weighting said base so that said marker returns to its upright position by itself when it is knocked over,
land means on the bottom of said base for facilitating standing the marker on the ground in its upright position, and
drain means for draining rain water entering said body through said open top.

### Claim 2 (depends on 1)

A marker as defined in claim 1, in which said base is formed with a separate compartment having a closable aperture via which material to weight the base can be introduced into the base, and in which said closable aperture is provided in a wall partitioning said base from said hollow upper region.

### Claim 3 (depends on 1)

A traffic marker as defined in claim 1, further comprising means in said rigid upper part for reducing the wind resistance of said traffic marker.

### Claim 4 (depends on 1)

A traffic marker as defined in claim 1, wherein said land means comprises the edge of a recess in the bottom of said base.