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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Rodger; John E.
Address:
San Antonio, TX
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
5850881 Drill pipe float valve and method of manufacture December 22, 1998
A float valve 10 includes a valve body 12 for sealing engagement with a float sub 20 having threads for threaded engagement with an oilfield tubular. A valve element 40 includes a stem 50, 70 and a valve cone 52, 80 secured thereto. The valve cone is configured for sealing engagement wit
5727775 Gate valve with dual seal rings on a unitary seat ring March 17, 1998
The gate valve 10 suitable for controlling fluid flow into a gas injection well of a hydrocarbon recovery operation includes a thru-conduit valve body 12, a bonnet 30, an operator handle 36 for raising and lowering a gate 22. A pair of seat assemblies 26, 28 are provided on opposing side
5687792 Drill pipe float valve and method of manufacture November 18, 1997
A float valve 10 includes a valve body 12 for sealing engagement with a float sub 20 having threads for threaded engagement with an oil field tubular. A valve element 40 includes a stem 50, 70 and a valve cone 52, 80 secured thereto. The valve cone is configured for sealing engagement wi
5623966 Flow control choke with shutoff seal April 29, 1997
A choke 10 for controlling the flow of fluid along the pressurized flow line includes a body 12 having a fluid inlet aligned with a fluid outlet. A stationary outer sleeve 64 is secured within the body, and has radially opposing sleeve flow ports 102, 104 therein each preferably spaced










 
 
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