Patent · US Expired

Combination reflector for wide angle warning light

US4754375A · kind A · utility

14Cited by
6References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 15, 1986
Grant dateJun 28, 1988
Priority date
Expiry dateAug 15, 2006

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60Q1/2611
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A light (58, 120) having a first parabolic reflecting surface (62, 122) and a second parabolic reflecting surface (60, 122) joined to the first surface at an angle (62) greater than about 90 degrees. The reflecting surfaces have linear vertexes (130, 132) and focal points (66, 64, 126, 128) which extend along a line parallel to the vertexes. A single elongated gas discharge tube (74) is located substantially coincident with the focal points of the reflecting surfaces. Preferably, the light has third and fourth reflecting surfaces (78, 79, 140, 146) which are angled relative to the first and second reflecting surfaces, and an integral bracket (162) for supporting a different type of light.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.