Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Industrial
Class Information
Number: 417/111
Name: Pumps > One fluid pumped by contact or entrainment with another > Aerated column > Valved gas inlet > Plural serially actuated valves
Description: Apparatus wherein said valve means comprises plural valves mounted at vertically spaced levels along said vertical column, and having common mechanical or electrical actuating means to actuate or permit the actuation of the valves in a particular sequence.










Patents under this class:

Patent Number Title Of Patent Date Issued
8418768 Bypass gaslift system, apparatus, and method for producing a multiple zones well Apr. 16, 2013
7500525 Gas well de-watering apparatus and method Mar. 10, 2009
7278489 Gas turbine for oil lifting Oct. 9, 2007
4715441 Side pocket mandrel Dec. 29, 1987
4545731 Method and apparatus for producing a well Oct. 8, 1985
4295795 Method for forming remotely actuated gas lift systems and balanced valve systems made thereby Oct. 20, 1981
4251191 Method for lifting oil in a well Feb. 17, 1981











 
 
  Recently Added Patents
Flood protection apparatus and container data center including the same
Registry key federation systems and methods
Printed circuit board unit having routing unit mounted thereon and computer device having the same
Semiconductor device
System and method for detecting crop rows in an agricultural field
Dynamic learning method and adaptive normal behavior profile (NBP) architecture for providing fast protection of enterprise applications
Method and system for billing based on color component histograms
  Randomly Featured Patents
Inverter circuit
Apparatus and method for electrolytically depositing copper on a semiconductor workpiece
Airlock shaft with differential core speed slipping capability
Reciprocator for a stepper exercise machine
Joining method and device produced by this method and joining unit
Dual port programmable logic device variable depth and width memory array
Method and apparatus for multicast messaging in a public satellite network
Method for regulating the ink in a printing press
Moving a graphical selector
Game system, game data exchange control method, game machine, and computer readable storage medium