Motion detector with side-pivoting light fixture
US5649761A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Aug 11, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/802
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light fixture controlled by a passive infrared motion detector including a base, one or more lamp holders attached to the base, and a detector housing also attached to the base and containing the motion detector. The lamp holders each comprise a socket housing for receiving a floodlight bulb or the like and a shade or reflector at the front of the socket housing. The lamp holder assembly is connected to the base by a support arm that is pivotably connected to a side wall of the socket housing offset from the end of the socket housing instead of being connected at the end of the socket housing as is conventional. The pivoting side mounting of the lamp holder permits the lamp holder to pivot with a moment arm that is significantly shorter than the overall length of the lamp holder. The shortened moment arm permits the motion detector housing to be mounted closer to the supporting base while leaving sufficient space for the lamp holders to swing through a wide range of movement without the risk of inducing false activations through interference with the movable motion detector housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.