Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Down lighting systems and fixtures therefor










Image Number 2 for United States Patent #5003432.

A down lighting system for elevator cabs and the like includes halogen lights in standard and emergency light fixtures. Both types of fixtures are connected to the ceiling by a clamp arrangement which is universally adaptable to a wide variety of ceiling types without changing the light housing dimensions. The clamp arrangement fastens light housings against rotation with respect to the ceiling and it is adjustable to different height ceiling configurations merely by connection to different vertical positions of the outer surface of the fixture. The standard fixture includes a halogen bulb with its own reflector. The emergency lighting fixture includes a halogen bulb/reflector unit with the emergency self focusing bulbs concentrically spaced around it. Both light sources pass focused light directly into the space below the ceiling for meeting test point candle power requirements. The emergency lighting circuit includes a switching relay with a manually operated button for testing the emergency light source by pulling the button to override a relay armature.








 
 
  Recently Added Patents
Method for incubating the contents of a receptacle
Mechanical and moisture protection apparatus for electronic devices
Antimicrobial polysiloxane materials containing metal species
Wheel
Early kill removal graphics processing system and method
SRB enhancement on HS-DSCH during cell change
System and method for data reconfiguration in an optical communication network
  Randomly Featured Patents
Spring-urged shelf divider system
Wear tester for shoes
Substituted methylene amide derivatives as modulators of protein tyrosine phosphatases (PTPs)
Method for making fluid emitter orifice
Electrical balance including a transversely arranged load compensation coil
File folder
Media mediator system and method for managing contents of various formats
Pressure regulator for pneumatic systems
Electrical box
Photomagnetic field sensor