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
Method for manufacturing photoelectric conversion device
Information processing device and display control method
Quinazoline compounds and their use in perfume compositions
Hot-press cushion material and manufacturing method of the same
Bottle
Headphone
Display screen with graphical user interface
  Randomly Featured Patents
Rear combination lamp for an automobile
Anti-inflammatory method
Quick connect fountain
Slide switch and manufacturing method of the same
Dough punch and method of use
Method of fabricating storage capacitor in semiconductor memory device, and storage capacitor structure
Silver halide photographic light-sensitive material
O-(2-Vinylphenyl)-thiolphosphates
Floor covering
Method and culture for producing cheese and other dairy products