Method and base for traffic channelizer
First Claim
1. A base for a traffic channelizer, said base formed of a hardenable liquid resin comprising polyvinylchloride (PVC) and a specific gravity increasing agent such that said base has a specific gravity greater than about 1.25.
1 Assignment
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Accused Products
Abstract
A resilient and flexible base for a two-piece traffic channelizer is provided that does not require external ballasting to stabilize the channelizer against wind forces and vacuum forces created by passing vehicles and minor impacts from a vehicle. The base is formed of a hardenable liquid resin such that the base is resilient and flexible after curing and has a specific gravity greater than about 1.25. The base further includes at least one flexible footpad for generating a restoring moment when the channelizer is subjected to a tipping force, such as a minor impact. The composition of the liquid resin includes at least one off-grade polyvinylchloride (PVC) resin, a plasticizer and a specific gravity increasing agent. A method is also provided for forming the base by slush molding at least a portion of the hardenable liquid resin adjacent the interior surface of a molding cavity. The base formed by the disclosed method is also self-lubricating and resistant to chemical degradation and extreme temperatures.
47 Citations
36 Claims
- 1. A base for a traffic channelizer, said base formed of a hardenable liquid resin comprising polyvinylchloride (PVC) and a specific gravity increasing agent such that said base has a specific gravity greater than about 1.25.
- 5. A base for a traffic channelizer formed of a hardenable liquid resin, said liquid resin comprising polyvinylchloride (PVC), a plasticizer and a specific gravity increasing agent in amounts sufficient such that said base has a specific gravity greater than about 1.25 and is substantially resilient and flexible after curing.
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16. A base for a traffic channelizer comprising
a bottom surface for contacting a supporting surface; -
a top surface in opposed relation to said bottom surface; and a flange extending upwardly from said top surface for engaging the lower end of a traffic channelizer drum; said base formed of a hardenable liquid resin such that said base has a specific gravity greater than about 1.25 and is substantially resilient and flexible after curing. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A traffic channelizer comprising
an elongated, hollow drum defining a longitudinal axis and comprising an upper end and a lower end; - and
a base comprising a bottom surface for contacting a supporting surface; a top surface, said top surface comprising an upwardly extending connecting flange for engaging the inner surface of said lower end of said drum; and a plurality of flexible footpads, each of said footpads extending radially outwardly and spaced circumferentially in a predetermined pattern such that at least one of said plurality of footpads is in contact with the supporting surface when the channelizer is tipped about an axis perpendicular to the longitudinal axis defined by said drum; said base formed of a hardenable liquid resin such that said base has a specific gravity greater than about 1.25 and is substantially resilient and flexible after curing. - View Dependent Claims (36)
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Specification