Resources Contact Us Home
Mechanical aerator

Image Number 3 for United States Patent #4123482.

A mechanical aerator comprising a boss, and at least one blade which extends radially from the boss and comprises a planar body portion and a deflector, the arrangement being such that when the aerator is mounted for rotation about a vertical axis the planar body portion of the blade lies in a vertical, or substantially vertical, plane and the deflector is inclined circumferentially upwardly from the top of the planar body portion.

  Recently Added Patents
Method and system for filtering home-network content
Vehicle window opening and closing control device
Package for product
Apparatus and method of managing radio bearer in wireless communication system
Tab visibility
Millimeter wave imaging method and system to detect concealed objects
Method for configuring analog-to-digital converter keys and non-transitory machine readable medium storing program code executed for performing such method
  Randomly Featured Patents
System and method for automatically detecting edges of scanned documents
Method for treating or preventing Alzheimer's disease
Cement compositions comprising strength-enhancing lost circulation materials and methods of cementing in subterranean formations
Negative capacitance synthesis for use with differential circuits
Multi-pitch improved ridge-seal for tiled roofs
Terminator connector fitting for electrical box and conduit system
Self contained data acquisition apparatus and system
Convertible aircraft with tilting rotors
Powdery polyurethane lacquers based on polyester resins and blocked isocyanates
Heated platen for liquifying thermoplastic materials