Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Subsurface drainage system and drain structure therefor










Image Number 7 for United States Patent #7938597.

A subsurface drainage assembly for directing fluid drainage from a surface is disclosed. The subsurface drainage assembly includes a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain structure panel. The drain structure panels have a laterally extensive backing grid and a plurality of spaced apart tubular support members projecting therefrom. The tubular support members are tapered so that the tubular support members are nestable with the tubular support members of an identical drain structure panel when the drain structure panels are stacked.








 
 
  Recently Added Patents
Simultaneous wafer bonding and interconnect joining
Human renal disease marker substance
Battery module
Resonant oscillator with start up and shut down circuitry
Method for providing information of access point selection
Method and apparatus for re-routing calls in a packet network during failures
Method and apparatus for controlling peak amplifier and doherty power amplifier
  Randomly Featured Patents
Remote metering display with motion sensor
X-ray emission device and method of assembly
Double wedge axe
Collapsible door apparatus
Semiconductor package
Device for attaching portable phones to vehicle
In vivo generator for radioimmunotherapy
Method of resin sealing permanent magnets in laminated rotor core
Multilayer graphic systems
Method for reducing contamination in pulp processing