Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Nitride semiconductor laser device
Cooling structure and cooling method for control rod drive mechanism and nuclear reactor
Semiconductor device having trapezoidal shaped trenches
Cosmetic/dermatological compositions comprising naphthoic acid compounds and polyurethane polymers
Resuming piecewise calibration of a real-time-clock unit after a measured offset that begins at the next calibration period
Creation and use of test cases for automated testing of media-based applications
Signal transfer apparatus
  Randomly Featured Patents
Systems and methods for historical display of surgical operating parameters
Medical decision support system and method
Semiconductor device having a contact hole extending from an upper surface of an insulating film and reaching one of a plurality of impurity regions constituting a transistor and method of man
Mini card adapter
Toys for animals
Ultra-thin liquid control plate and combination of box-like member and the control plate
Copier with mode for collating off a platen
Hotspot location database system, mobile terminal for use in such a system and method for creating maintaining and updating such a system
Compact gas block with rail interface
Multiple-wavelength pulsed light source for a wavelength division multiplexed passive optical network