Abstract: An antimicrobial, tarnish resistant copper alloy with a golden visual appearance comprising between about 1% and about 4% Ni, up to 3% Al, and optionally Zn and/or Mn up to a total of about 15%.

Abstract: A copper base alloy having an improved combination of yield strength and electrical conductivity consisting essentially of between about 1.0 and about 6.0 weight percent Ni, up to about 3.0 weight percent Co, between about 0.5 and about 2.0 weight percent Si, between about 0.01 and about 0.5 weight percent Mg, up to about 1.0 weight percent Cr, up to about 1.0 weight percent Sn, and up to about 1.0 weight percent Mn, the balance being copper and impurities, the alloy processed to have a yield strength of at least about 137 ksi, and an electrical conductivity of at least about 25% IACS.

Abstract: A new copper-based alloy is described along with a processing method to make a strip that can be used for various automotive interconnects. The alloy process combination yields a material with high strength and electrical conductivity with excellent formability. The combination of properties result from a Cu—Sn—Ni—P alloy with optional Mg additions and thermal-mechanical processing to make an alloy with a conductivity of 40% IACS, yield strength of 80 KSI, bend formability of 1t/1t minimum, and stress relaxation of 65% at 150° C. after 1000 hours. Processing can be modified to increase formability at the expense of yield strength. Improvements to conductivity come from changes in chemistry as well as processing. The new chemistry-process optimization results in a low cost alloy of Cu—Sn—Ni—P—Mg.

Abstract: A method and apparatus for compositing putrescible waste material, the apparatus including a stationary elongated compositing chamber which is mounted to be generally horizontal in orientation or slightly inclined from an inlet end to an outlet end and includes at least one rotatable shaft therein with paddles or tines that extend therefrom in a generally helical pattern. Rotation of the shaft causes the composting material to move along the chamber. Air is injected into the compositing chamber and accumulates in a headspace above the compositing material where it is measured for flow rate, gas content and temperature and eventually removed from near an inlet end of the chamber.

Abstract: A composing system which includes a stationary and usually unheated generally horizontal composting chamber with an inlet and outlet at oposite ends of the chamber. Through the middle of the chamber may be a shaft or shafts to which are attached a series of discrete arms, appendages or flutes that extend into the outer volume of the chamber. The arms mix and agitate a composting material placed in the inlet and transport the compost material to the outlet at the other end of the chamber while the material composts and biodegrades in the chamber. The arms allow air to penetrate into the composting material and to release water through the emission of steam. A number of probes through the exterior of the chamber which extend into the headspace of the chamber, or into the copositing mix measure temperature and carbon dioxide levels with the chamber.