Resources Contact Us Home
Motion controller for wastewater treatment trickling filter

Image Number 2 for United States Patent #5190644.

An apparatus for controlling the rate of rotation of a wastewater distribution assembly for a sewage treatment trickling filter contained by a vessel. The wastewater distribution assembly is of the type including a support and at least one distribution arm having an end terminating adjacent a wall of the vessel. The apparatus comprises a carriage having at least one wheel rotatably mounted to the end of the distribution arm and adapted to engage the vessel and means mounted to the carriage for controlling the rotation rate or free-wheeling of the wheel.

  Recently Added Patents
Inhibitors of the mevalonate pathway of Streptococcus pneumoniae
Stopper, motor, and disk drive apparatus
Method of forming micropattern, method of forming damascene metallization, and semiconductor device and semiconductor memory device fabricated using the same
Fluorine-free fused ring heteroaromatic photoacid generators and resist compositions containing the same
Method for combining images and magnetic resonance scanner
Preserving user applied markings made to a hardcopy original document
Method of fabricating crystal unit, crystal unit fabrication mask, and crystal unit package
  Randomly Featured Patents
Perpendicular media with improved corrosion performance
Mold clamping system
Use of agomelatine in obtaining medicaments intended for the treatment of generalized anxiety disorder
Systems and methods for identifying characters and words in a document
Printing method using inkjet recording method and printing apparatus
Pallet container
Integral retaining foot for rammed post or pole
Pre-alloyed powder
Disc player
Ball-point pen