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
Image-monitoring method for electroporation treatment and as associated image-monitoring appliance
Method and system for automatic 3-D image creation
Subscribing to content
Integrated circuit packaging system with interconnects and method of manufacture thereof
Tropoelastin derivatives
Thin film switch and press key/keyboard using the same
Piezoelectric speaker and method of manufacturing the same
  Randomly Featured Patents
Treatment of molten metal
Network game not requiring continuous connectivity
Folding carton with reclosable tuck and disposable hang panel
Process for making a lube base stock from a lower molecular weight feedstock
Autonomous, ambulatory analyte monitor or drug delivery device
Water-redispersible granules including a liquid active material and a non ionic alkoxylated type surfactant
Spinning reversal preventive mechanism for a reel for fishing
Method of binding structural material
High efficiency bridgeless PFC power converter
Synthesis of midodrine HCI from a novel intermediate 1-(2',5'-dimethoxyphenyl)-2-azidoethanone