Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Subsurface well apparatus










Image Number 19 for United States Patent #6055213.

Method and apparatus for actuating one or more downhole well tools carried by a production or workstring conduit having an imperforate wall and for blocking fluid communication between an activating fluid body and a second fluid source within said well across dynamic seals between actuating members of the well tool, by producing selective signals through the conduit wall detectable by a member to produce an activating signal for actuating the downhole well tool by a downhole energy source.








 
 
  Recently Added Patents
Tread portion of an automobile tire
Liquid crystal display device
Virtual image display device and manufacturing method of virtual image display device
Encoding method and encoding device, decoding method and decoding device and transcoding method and transcoder for multi-object audio signals
Dihydronaphthyridinyl(organo)methanone analogs as positive allosteric mGluR5 modulators
Method for manufacturing photoelectric conversion device
Gate timing for short servo wedge in disk memory systems
  Randomly Featured Patents
Image sensor packaging method and structure thereof
Digital data transfer system for use especially with advertisement insertion systems
Hoist-type support for game
Method and system for controlling power in a communication system
Device for carrying a removable pendant
Integrated circuit cooling apparatus
Method to recognize GUI object in globalized environment
Method for the reduction of hydrogen sulfide in sewage treatment plants
Method of manufacturing a planar optical component
Add/drop module for single fiber wavelength division multiplexing systems