William Edward Denzel

6945264, Sep 20, 2005

Jul 9, 2004

10/887606

William E. Denzel - Atascadero CA, US
Clark Behnke - Paso Robles CA, US
Hany Armia Said - Arcadia CA, US

Zurn Industries, Inc. - Erie PA

F16K003/08
F16K015/18

137 1, 1376142, 13762531, 137613, 1374546

A flow control module has a valve body with a bore extending therethrough and a first disc occupying substantially the entire area of the bore and having at least one aperture extending therethrough. The valve body also includes a second disc adjacent to the first disc wherein the second disc also occupies substantially the entire area of the bore and has at least one aperture extending therethrough. The discs are rotated so that the apertures may align to increase or to reduce flow therethrough. The valve body also includes a check valve proximate to the first disc and the second disc to close and prevent backflow. Arranging multiple flow control modules in line in a system provides incremental pressure drops to achieve a total pressure drop in stages while minimizing or eliminating cavitation.

20150002307, Jan 1, 2015

Jun 25, 2014

14/314597

- Houston TX, US
Matthew A. White - Templeton CA, US
William Denzel - Templeton CA, US
Nathan Paszek - Atascadero CA, US

E21B 47/12

3408544

A sonde based antenna is used for communication within a wellbore. The sonde based antenna may include a toroidal antenna positioned about a conducting element. The sonde may be positionable within a gap sub. The sonde may be electrically connected to the first and second tubulars of the gap sub such that the tubulars are electrically coupled by the conducting element and are otherwise electrically insulated. The sonde may include a first and second structural member, the first and second structural members being electrically insulated except by the conducting element. The first and/or second structural element may extend through and/or around the toroidal antenna to, for example, add structural rigidity to the sonde.