Mccalvin
David Mccalvin, Missouri City, TX US
Patent application number | Description | Published |
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20090044947 | FLAPPER GAS LIFT VALVE - A gas lift valve has a flow restrictor, a valve part on one side of the flow restrictor, a flow deflector and a tubular member on another side of the flow restrictor, and a flapper valve on the side of the flow restrictor where the tubular member is located, the flapper valve being adjacent to the tubular member. When fluid flows into the gas lift valve at sufficient pressure, the valve part opens, the fluid flows through the flow restrictor and acts on the flow diverter thereby moving the tubular member and opening the flapper valve. The tubular member extends though the opening the flapper valve covered. | 02-19-2009 |
20090266555 | SYSTEM AND METHOD FOR CONTROLLING FLOW IN A WELLBORE - A technique enables control over flow in a wellbore with a flow control system. The flow control system combines a flow reduction mechanism with a flow control device, such as a valve. The flow reduction mechanism comprises a closure member which can be selectively moved between an unactuated and actuated position, allowing relatively greater flow through the flow control device in the unactuated position. The flow reduction mechanism actuates prior to or in conjunction with the flow control device to reduce flow and thus reduce the loading forces that would otherwise act against the flow control mechanism upon closure of the flow control device. | 10-29-2009 |
20110253392 | SYSTEM AND METHOD FOR CONTROLLING FLOW IN A WELLBORE - A technique enables control over flow in a wellbore with a flow control system. The flow control system combines a flow reduction mechanism with a flow control device, such as a valve. The flow reduction mechanism comprises a closure member which can be selectively moved between an unactuated and actuated position, allowing relatively greater flow through the flow control device in the unactuated position. The flow reduction mechanism actuates prior to or in conjunction with the flow control device to reduce flow and thus reduce the loading forces that would otherwise act against the flow control mechanism upon closure of the flow control device. | 10-20-2011 |
David E. Mccalvin, Missouri City, TX US
Patent application number | Description | Published |
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20080236827 | Fluid Communication Nipple - A fluid communication nipple including a tubular mandrel having an interior surface defining an internal bore and a passageway extending substantially lengthwise along a portion of the mandrel. The passageway is defined by an exterior wall section and an interior wall section, wherein the interior wall section extends outward from the interior surface into the bore. When it is desired to establish fluid communication through the passageway between the exterior and interior of the nipple an opening is formed through the internal wall section. | 10-02-2008 |
20100300696 | System and Method for Monitoring Subsea Valves - A technique facilitates collection of information on desired production related parameters in a subsea valve system. Collected data can be processed in a manner that enables enhanced production and/or an increased knowledge regarding operation of the entire subsea valve system. Sensors are coupled with a plurality of subsea valves, and those subsea valves are positioned at appropriate locations along a subsea hydrocarbon production system. The sensors also may be coupled with a data processing system to process the collected data for use by a well operator. | 12-02-2010 |
20110155396 | SYSTEM, METHOD, AND DEVICE FOR ACTUATING A DOWNHOLE TOOL - An actuating component for a downhole tool is provided that includes a main actuating bore and an actuating liner configured to be accommodated within the main actuating bore. The actuating component may further include a piston configured to sealingly and translatably fit within the actuating liner and be coupled to the downhole tool wherein movement of the piston relative to the actuating liner actuates the downhole tool. A method of actuating a downhole tool is also provide that may include installing an actuating liner within a main actuating bore and providing a piston configured to translatably and sealably be accommodated within the actuating liner. The method may further comprise coupling the piston to an operative component of the downhole tool and applying pressure to a surface of the piston, thereby moving the piston relative to the actuating liner. | 06-30-2011 |
Shawn L. Mccalvin, Mooresville, NC US
Patent application number | Description | Published |
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20120080821 | MOLD RELEASE SHEET - A system for molding is provides and includes a first mold portion and a second mold portion. The first and second mold portions facilitate formation of a molded panel. A first sheet is inserted between the first mold portion and the second mold portion, such that the first sheet facilitates removal of the molded panel from the first mold portion. | 04-05-2012 |
20120088089 | RIGIDITY CONTROLLED FIBERGLASS - A multi-layered panel for a vehicle is provided and includes multiple fiberglass layers and an intermediate layer disposed between the fiberglass layers. One of the fiberglass layers includes multiple fiber patterns where each fiber pattern has a strength and/or a flexibility substantially different from the other fiber patterns. | 04-12-2012 |