Resources Contact Us Home
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
Replacement contacts for all-around contacts
Rate selection for an OFDM system
Semiconductor device and method for fabricating the same
Fluid processing device for oligonucleotide synthesis and analysis
Ultra-high tensile strength maraging steel music instrument string
Semiconductor device and method of manufacturing a semiconductor device
Methods of improving long range order in self-assembly of block copolymer films with ionic liquids
  Randomly Featured Patents
Aromatic/aliphatic diamine derivatives for advanced compositions and polymers
Holder for condiment containers
Process for graining and anodizing a metal plate
Textile-fiber mixing chamber
Method for determining caster camber and toe-in
Nucleotide sequences of coryneform bacteria coded for proteins participating in L-serine metabolism and method for microbial production of L-serine
Method and apparatus for testing the integrity of the electrical insulation of a well logging sonde
Method for an improved developing process in wafer photolithography
Collapsible bag