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Calnan

Barry D. Calnan, Conroe, TX US

Patent application numberDescriptionPublished
20100300761APPARATUS AND METHODS TO OPTIMIZE FLUID FLOW AND PERFORMANCE OF DOWNHOLE DRILLING EQUIPMENT - Sleeves, stabilizers and other well tools may be formed with fluid flow paths or channels extending through one or more blades disposed on the exterior portions of such well tools. The blades and associated fluid flow paths extending therethrough may allow optimum fluid flow rates and volumes to enhance lifting of formation cuttings and downhole debris along with cleaning exterior portions of the well tool and an associated rotary drill bit. Location, configuration, orientation and/or dimensions associated with such blades and associated fluid flow paths or channels may also be modified to provide an enlarged pad or contact surface on exterior portions of one or more blades while maintaining desired fluid flow rates and volumes over exterior portions of the well tool. Such pads or contact surfaces may have optimum surface areas for contacting adjacent portions of a wellbore during directional drilling of the wellbore.12-02-2010

Patent applications by Barry D. Calnan, Conroe, TX US

Daniel Calnan, Lynn, MA US

Patent application numberDescriptionPublished
20100156002High-throughput asymmetric membrane - A microporous asymmetrical membrane formed of one or more layers wherein the “tight” side of the membrane has an “opened” face or otherwise highly-porous reticulated surface is described. The microporous asymmetrical membrane has high throughput and high flux, even when used for filtering viscous materials, such as serum or plasma. The membrane's surface can be formed by ablation or solvation, or in a two or more layered structure, through an appropriate selection of casting dopes.06-24-2010
20100243556High-throughput asymmetric membrane - A microporous asymmetrical membrane formed of one or more layers wherein the “tight” side of the membrane has an “opened” face or otherwise highly-porous reticulated surface is described. The microporous asymmetrical membrane has high throughput and high flux, even when used for filtering viscous materials, such as serum or plasma. The membrane's surface can be formed by ablation or solvation, or in a two or more layered structure, through an appropriate selection of casting dopes.09-30-2010

Rita M. Calnan, York, ME US

Patent application numberDescriptionPublished
20100094170Means for Sampling Animal Blood04-15-2010