Invention Grant
- Patent Title: Drive head assembly for a fluid conveyor system
- Patent Title (中): 用于流体输送系统的驱动头组件
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Application No.: US12586254Application Date: 2009-09-18
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Publication No.: US08146732B2Publication Date: 2012-04-03
- Inventor: Jim Crafton
- Applicant: Jim Crafton
- Agency: Schultz & Associates, P.C.
- Main IPC: E21B43/00
- IPC: E21B43/00

Abstract:
The invention disclosed provides a drive head assembly for a fluid conveyor system that propels a fluid entraining conveyor through a well bore to carry fluids to the surface. The invention is comprised of a pair of synchronized follower wheels connected to a set of counter rotating sheaves. A fluid entraining conveyor is wrapped in a “figure-8” conveyor path around the sheaves in a plurality of coaxial grooves and around a distal sheave located in the fluid in the well bore. The coaxial grooves incorporate a unique shape which in conjunction with the wrap pattern provide improved tractive qualities and thus reduce tension in the conveyor and increase the durability of the conveyor. The conveyor can run at increased speeds and with no tension on the downward portion of the conveyor resulting in higher efficiency and less down time due to breakage.
Public/Granted literature
- US20100236788A1 Drive head assembly for a fluid conveyor system Public/Granted day:2010-09-23
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