Resources Contact Us Home
Tubular filtration apparatus

Image Number 3 for United States Patent #6799686.

An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shape to form a filter structure having an outer perforated tubular shroud interiorly lined with the filter media. The tubular filter structure is telescoped onto a perforated base pipe and has its opposite ends sealingly secured thereto to complete the expandable well screen.

  Recently Added Patents
Transparent conductive structure
MIM capacitor and associated production method
Method and apparatus for map transmission in wireless communication system
Wireless communications system, wireless communications apparatus, wireless communications method and computer program for wireless communication
Semiconductor device and method of manufacturing the same
Diagnostic data interchange
Moving picture decoding device and moving picture decoding method
  Randomly Featured Patents
Industrial container filling lance
Methods for modulation of oocyte activation
Agent for dyeing hair
Computer system having a parallel port for its peripheral device and an expansion device thereof
Method and apparatus for skin absorption enhancement and transdermal drug delivery
Method and apparatus for covertly determining the rate of relative motion between two objects
Method and apparatus for instruction sampling for performance monitoring and debug
Process and plant for producing sulfuric acid from gases rich in sulfur dioxide
Method for identifying a subject at risk of developing heart failure by determining the level of galectin-3 or thrombospondin-2
Remote controlled single lamp searchlight for vehicle or boat