Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Variable choke valve










Image Number 7 for United States Patent #7377327.

Embodiments of the present invention generally provide a more reliable variable choke flow control valve. In one embodiment, a variable choke valve for use in a wellbore is provided. The valve includes a tubular housing having an axial bore therethrough and a port through a wall thereof. The valve further includes a tubular sleeve having an axial bore therethrough and first and second holes through a wall thereof and disposed within the housing. The first hole is larger than the second hole, and the sleeve is actuatable among three positions: a first position where the first hole is aligned with the port, a second position where the second hole is aligned with the port, and a third position where the sleeve wall is aligned with the port.








 
 
  Recently Added Patents
System and method for detecting crop rows in an agricultural field
System and method for detecting states
Elementary network description for efficient link between neuronal models and neuromorphic systems
Sound producing apparatus for vehicle
Image erasing apparatus and recording medium conveying method for image erasing apparatus
System and transceiver clocking to minimize required number of reference sources in multi-function cellular applications including GPS
Taxi cab key chain
  Randomly Featured Patents
N(Substituted phenylsulfonyl) N'(substituted cyumidin-2-yl) ureas
Coating film transfer tool
Hybrid circuit arrangement with overload protection
Apparatus for mincing and/or beating and/or mixing edible materials such as meat, fruit and vegetables
Acaricidal 1-alkylthio-substituted and 1-phenylthio substituted 2-(phenoxyalkyl)-2-imidazolines
Transparent automobile top
Internal seed knockout assembly
Saw filter including multistrip coupler with varied widths
Sewn fusion seal process for producing air-holding vehicle restraint systems
System and method for personalized medication treatment management