Resources Contact Us Home
In-grade light fixture housing and hydrological barrier plate for use therein

Image Number 5 for United States Patent #7370988.

A hydrological barrier plate for in-grade light fixture housings and a housing for use with light fixtures to prevent water entry into the water sensitive compartments of the light fixture. The barrier plate has a plate body with an opening in which is sealably disposed an anti-syphon wire pass-through valve for electrically connecting the components on one side of the barrier plate with the wires in the junction box on the opposite side of the barrier plate. The barrier plate is sealed around its outer edge against the housing wall. The pass-through valve is configured to prevent water from wicking along the wires and to prevent water from passing around the valve. The barrier plate is installed without tools and an effective seal is easily obtained. Using the barrier plate, water is prevented from migrating between the junction box and the primary housing compartments of the housing.

  Recently Added Patents
Fire detector
Method and system of extending battery life of a wireless microphone unit
Image processing device and information storage medium including motion vector information calculation
Radio transmitter and radio receiver with channel condition assessment
Rear body panel cover for a motor vehicle
Optical scanner and image-forming device
Method and apparatus for communicating electronic service guide information in a satellite television system
  Randomly Featured Patents
Process for producing a polymer of an .alpha.-olefin and lubricant
Rotary tool holder
Stearoyl-CoA desaturase 4 gene
Method and apparatus for monitoring human activity pattern
Toner container
Mycobacterium tuberculosis fusion protein and uses thereof
Waterproof glove
Thermal processing apparatus performing irradiating a substrate with light
Optical disk drive protection device