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
System for determining movement properties of a guided vehicle
System for non-destructive image processing
Methods of isolating bipotent hepatic progenitor cells
Method and apparatus for receiving signals in a MIMO system with multiple channel encoders
Inkjet ink
Sericin cationic nanoparticles for application in products for hair and dyed hair
Generalized AC-DC synchronous rectification techniques for single- and multi-phase systems
  Randomly Featured Patents
Bimetal snap disc thermostat with heaters
Method for thermally fitting hard teeth in rock bits
Liquid crystal display device with spacer in the sealant
Electrophotographic photoreceptor comprising a trisazo charge generating compound
Method and apparatus for automatic corotron cleaning in an image production device
Method of treatment using solubilized protein composition obtained from eggshell membrane
Electrode assembly especially adapted to utilizing a magnetic field for measuring electric conductivity of treated non-polar liquids
Kettledrum
Circuits for preventing overvoltage conditions on antenna terminals and method
Cobalt-chromium superalloy