Resources Contact Us Home
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
Polyureas made from aminocrotonates and enaminones
Access control method, information display device using the same, and information display system
System and method for selecting a video encoding format based on feedback data
Automated security analysis for federated relationship
Prioritizing application data for transmission in a wireless user device
System and method of creating and providing SMS http tagging
Memory access monitoring method and device
  Randomly Featured Patents
Sheet receiving and storage apparatus
Determining an option for decommissioning or consolidating software
Electro-optical transducer assembly
Scrap shearer
Digital multitone generator for telephone dialing
Active vibration-absorber
Cardiac assist device having improved muscle stimulation
Photosensitive composition and lithographic printing plate