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35results about How to "More consistency" patented technology

Noise control

InactiveUS7648330B2Minimal weight unbalanceMinimal unevennessPump componentsEngine fuctionsGas turbinesEngineering
Noise control with respect to rotating machinery such as gas turbine engines is important to meet acceptable operational and environmental constraints. Buzz-saw noise in particular is due to differences in blade to blade geometries both as assembled and due to blade manufacturing tolerance variations. Generally, a plurality of blades rotate within a duct and some noise propagates forwards of the blade assembly. In order to abate such noise an acoustic lining is provided. By consideration of the acoustic attenuation effects of that lining, it is possible to rearrange the blades within the blade assembly such that the overall noise attenuation effects are improved. Thus, the blade assembly may be rearranged such that there is a reduction in the Fourier coefficients at harmonics above and below the harmonics most attenuated by the acoustic attenuation treatment or lining or alternatively the effect of that lining maximized by rearrangement of the blades to shift the harmonics to those most attenuated by the acoustic treatment.
Owner:ROLLS ROYCE PLC

Hydrophilic activated sorbent extraction disk

A one-piece solid phase extraction article to be used in solid phase extraction analysis, a filtration funnel comprising the one piece solid phase extraction article, and a method of use of the article. The article, device and method provide for improved analysis of hexane extractable material by eliminating the standard use of polar solvents to pre-condition the sorbent materials. The one-piece solid phase extraction article comprises water wettable monomeric phase type sorptive material embedded within a porous matrix. The water wettable monolithic polymeric sorptive material may be a hydrophilic polymeric gel, such as functionalized C-18 sorbent material, and the porous matrix may be fibrous matric, such as a glass fiber. The one-piece solid phase extraction article may further comprise one or more pre-filtration layers which do not contain the sorptive particles.
Owner:ENVIRONMENTAL EXPRESS INC

System and method for cooling the barrel of a firearm

InactiveUS20090049732A1Process be speed upMore consistency and predictabilityVentillation systemsAerospace engineeringThermal distortion
A system for cooling the barrel of a firearm thereby maintaining a more consistent barrel temperature and reducing thermal distortion of the barrel.The system includes a fan apparatus for injecting or removing air or other gases to or from the barrel of a firearm. The fan apparatus comprises a first orifice and a second orifice. The first orifice interfaces with the firearm by injecting or removing air or other gases to or from the barrel of the firearm
Owner:KISSINGER RUSSELL DEAN

Method For Preparing Readily Processable, Thermally-Stable, Phosphorus-Containing Flame Retardant Material

The present disclosure provides for the production of non-halogenated phosphorus containing, thermally stable flame retardant materials directly in the form of a powder or small particles. The process generally includes heating one or more phosphonic acid salts in a high boiling, water miscible, acid stable solvent to dehydration reaction temperatures of 200° C. or higher.
Owner:LANXESS CORP
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