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
Inductive signal transfer system for computing devices
Contact detection between a disk and magnetic head
Searchlight
Method and apparatus for prioritizing data transfer
Particulate filter with hydrogen sulphide block function
Method and system for placing an emergency call
Method for specifying control curve parameters for controlling climatic environmental conditions of climate-controlled enclosed spaces
  Randomly Featured Patents
Shield connector
Method of forming differing volume solder bumps
Method and system to lower the minimum operating voltage of a memory array
Security system
Disposable non-latex tourniquet
Electric oven part
Control of communication in access and entry systems
Damage resistant decorative laminate
Adaptive receiver apparatus
Ultrasonic imaging system capable of displaying 3-dimensional angiogram in real time mode