Patent · US Expired

Light fixture

US4814961A · kind A · utility

72Cited by
16References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 21, 1987
Grant dateMar 21, 1989
Priority date
Expiry dateDec 21, 2007

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF21W2131/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A light fixture (10) including a bulb/lens assembly (12), a hollow post (14) and a ground stake (16). An assembly ring (18) having inner and outer "fingers" (104 and 106, respectively) securely connects the bulb/lens assembly (12) to the post (14). Bulb/lens assembly (12) includes a lens (28) which carries a plurality of louvers (40, 42 and 44). Some of the louvers include legs (46, 50) and slots (60, 62) so that the distance between the louvers can be adjusted to vary the appearance of light fixture (10) and the amount of light produced thereby.

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