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
Reference circuit with curvature correction using additional complementary to temperature component
Optimized control of an energy supplying system and an energy consuming system
Systems and methods for restoring images
Method and device for processing broadcast packets/multicast control messages
Combination for composite layered chip package
Method for producing (meth)acrylic anhydride, method for storing (meth)acrylic anhydride, and method for producing (meth)acrylate
Power converter with a variable reference voltage and inrush current limiting
  Randomly Featured Patents
Epoxyketone-based immunoproteasome inhibitors
Support bracket
Liquefied gas supply system
Linear slide and swivel arrangement for a die mold lathe
Digital photo frame with dial-a-tag functionality
Detection of nucleic acid sequence differences using the ligase detection reaction with addressable arrays
Chamber block with a removable supernatant collection vial
Adjustable child support device
Apparatus for processing webs of photographic material
Liquid-crystal polyester resin composition which exhibits excellent high temperature stability