Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for detection of volatile soil contaminants in situ










Image Number 4 for United States Patent #4834194.

The invention relates to methods and apparatus for agitating and heating a sub-surface volume of soil to liberate volatile compositions therefrom which are transmitted through a special flow passage created through the soil to the soil surface where they are analysed to determine the presence or absence of selected contaminants. A low pressure sink is provided to ensure proper flow of volatiles rapidly to the surface and to prevent contamination of adjacent soil blocks or cylinders during treatment.








 
 
  Recently Added Patents
Live-attenuated compositions for bacterial infections
Secure service for enabling communication for calling party when communication service for called party is suspended
Method and system for modifying satellite radio program subscriptions in a mobile vehicle
Electronic component, a semiconductor wafer and a method for producing an electronic component
Navigation apparatus, search result display method, and graphical user interface
Method for switching between virtualized and non-virtualized system operation
Flow cytometer method and apparatus
  Randomly Featured Patents
Ocular solution applicator
Continuous process and apparatus for separating hydrocarbons from earth particles and sand
1,2-Naphthoquinone-2-diazidesulfonate ester photosensitive agent, method for producing the photosensitive agent, and photoresist composition
Music scoring and musical staffs
Electrical connector
Digital signal processor
Medium PRF pulse doppler radar having simplified ground moving target rejection capabilities
Combination primer/topcoat coating
Operational methods for a secure node in a computer network
Bleaching compositions comprising multiply-substituted protease variants