Resources Contact Us Home
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
Handheld electronic device with text disambiguation employing advanced editing feature
Device and implantation system for electrical stimulation of biological systems
System and method for optimizing teams
Preserving privacy of digital communication information
Demand based power allocation
Modified and stabilized GDF propeptides and uses thereof
Bicycle shifting method
  Randomly Featured Patents
Bone implant for fixing artificial tendons or ligaments with application and extraction means
Memory cell of nonvolatile semiconductor memory device
Washing machine transmission clutch/brake mechanism
Heat gun with high performance jet pump and quick change attachments
Method for manufacturing ohmic contacts for compound semiconductors
Perimeter mounted polymeric piezoelectric transducer pad
Method, system and program product for developing a data model in a data mining system
Parking brake for use with a power shift transmission
Fish securing device
Male sterile brassica plants