Gunnells
John Gunnells, Broken Arrow, OK US
Patent application number | Description | Published |
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20120291888 | UNDULATING SEALING SURFACE WITH RAISED RIDGE - A valve assembly including a first member having a first undulating sealing surface, the first undulating sealing surface having a ridge extending therefrom, a second member having a second undulating sealing surface, the first and second undulating sealing surfaces being complementarily formed, the second member having a seal element for sealing the valve assembly when the first and second members are engaged, the ridge operatively arranged to increase a contact pressure between the first member and the seal element. | 11-22-2012 |
John E. Gunnells, Broken Arrow, OK US
Patent application number | Description | Published |
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20090050327 | Switching Apparatus Between Independent Control Systems for a Subsurface Safety Valve - A system is provided for switching between redundant control systems for a subsurface safety valve (SSV) while being able to isolate the closure spring from hydrostatic pressure in the control line of the system that is not being used. There are two control lines that connect to discrete operating pistons that are both coupled to the flow tube. Each operating piston is connected to a control rod with the control rods terminating near opposed ends of a pivoting member. Pushing down on one rod pushes up on the other rod so that the other rod is held supported and the hydrostatic pressure in its associated control line doesn't affect the force needed by the closure spring to close the SSV. Releasing control line pressure puts the system in neutral to allow either of the systems to be reselected. | 02-26-2009 |
20100314571 | Unitary Flapper Base and Method of Manufacture - A flapper base provides a flapper base body with a hinge portion unitarily formed thereupon and a flapper seat surface formed within the flowbore of the body. The flapper base may be formed from a single section of tubular metallic stock. In a method of forming a base, the stock is gripped by a rotary clamp, and a five-axis milling machine is used to cut away portions of the stock section and to form the seat surface. | 12-16-2010 |
20120186084 | Unitary Flapper Base Method of Manufacture - A flapper base provides a flapper base body with a hinge portion unitarily formed thereupon and a flapper seat surface formed within the flowbore of the body. The flapper base may be formed from a single section of tubular metallic stock. In a method of forming a base, the stock is gripped by a rotary clamp, and a five-axis milling machine is used to cut away portions of the stock section and to form the seat surface. | 07-26-2012 |
Ronald Kenyon Gunnells, Birmingham, AL US
Patent application number | Description | Published |
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20090069953 | ELECTRONIC CONTROL SYSTEM AND ASSOCIATED METHODOLOGY OF DYNAMICALLY CONFORMING A VEHICLE OPERATION - An electronic control system for a vehicle and an associated method of dynamically conforming a vehicle operation recommendation to an environment external to a vehicle are provided. Input parameters relating to the environment external to the vehicle are received. The vehicle operation recommendation is then adjusted based on the input parameters of the environment. The vehicle operation recommendation is then delivered to an interface of the vehicle. The adjustment conforms the vehicle operation recommendation to the environment to alert an operator of the vehicle of environmental conditions. The adjusted vehicle operation recommendation identifies a suggested manner of operating a vehicle control to account for the environment. | 03-12-2009 |