Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Corrugated leaching chamber










Image Number 10 for United States Patent #7189027.

A continuous curve arch shape cross section leaching chamber made of molded thermoplastic has closely spaced corrugations and sidewalls which are perforated with slots which slope downwardly, running from interior to exterior of the chamber. The slot height and or wall thickness vary with slot clevation from the base, to achieve a desired minimum Soil Threshold Angle in the slots, where said Angle parameter relates to resistance to entry of surrounding soil. Slotted wall thickness is less than about two times the thickness of the basic chamber wall thickness elsewhere. The chamber has properties and performance approximating prior art chambers, but has substantially less normalized weight and total weight.








 
 
  Recently Added Patents
Embedded bonding pad for image sensors
Method and system for implementing power detection
Display device and method of manufacturing the same
System and method for discontinuous reception control start time
Personal alarm device for headwear for proximity detection
Secure Flash-based memory system with fast wipe feature
Fire detector
  Randomly Featured Patents
Apparatus for sampling instruction execution information in a processor pipeline
Illumination device
7-(1-Methyl-5-p-methylbenzoylpyrrole-2-acetamidoethyl)-theophylline with anti-platelet aggregant and broncholytic activity
Camera with an automatic focus control device
Board connector
Efficient PWM controller
Method and system for monitoring tire pressure
Method and apparatus for optically determining note characteristics in a keyboard operated musical instrument
Method and apparatus for forming a head on a fastener and a fastener formed therefrom
Flooring system