U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Safety delineators

Patent 5560732 Issued on October 1, 1996. Estimated Expiration Date: Icon_subject February 10, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

D309585

1228615

1939968

2103410

3451368

3591144

3732842

Road-surface mountable delineator support member
Patent #: 4511281
Issued on: 04/16/1985
Inventor: Schmanski

Barrel and barrel base
Patent #: 4973190
Issued on: 11/27/1990
Inventor: Erwin, et al.

Traffic control element and method of erecting and stabilizing same
Patent #: 5026204
Issued on: 06/25/1991
Inventor: Kulp, et al.

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Inventors

Assignee

Application

No. 195119 filed on 02/10/1994

US Classes:

404/10, Yielding116/63P, Portable404/13Discrete interfitted element

Examiners

Primary: Schoeppel, Roger J.

Attorney, Agent or Firm

Foreign Patent References

  • 2633954 FR 01/12/1990
  • 2122239 GB. 01/12/1984

International Class

E01F 009/00

Abstract

A safety delineator is provided having either a conical or a tubular body portion, which has an improved handle feature permitting easy and comfortable full hand gripping of the delineator. The invention additionally solves a longstanding problem common to prior art support bases for delineators and the like, by providing a convenient handle, molded integrally with the support base element, for picking up the base. The inventive handle not only provides a convenient means for grabbing the delineator, but it also provides an additional advantage with respect to conical delineators, in that it prevents them from sticking together when they are stacked. Two types of inventive support bases are disclosed. One is a base molded from a heavy solid material, such as rubber, and includes additional advantageous features such as anti-skid grippers on the bottom surface of the base element and stacking rings molded onto the upper surface of the base element for assisting in compactly stacking a plurality of bases. The second type is molded from resilient plastic, and adapted to be filled with a ballast material such as sand. This base is advantageously molded to provide a funnel structure for filling the ballast chamber, which, after the filling step is completed, is cut off. The base element edges are then sealed to permanently seal the ballast chamber. Additional features of this type of base are its dome-like configuration and the provision of corrugations on its bottom surface, both of which contribute to its crush resistance.

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