Abstract: A method of manufacturing a slip-resistant photo-luminescent device includes dispensing first and second powdered components into respective recesses (8, 13) provided in a substrate (7) such as a metal strip. The first powdered component includes a resin and a friction enhancing material, the second powdered component includes a resin and a photo-luminescent pigment. The powdered components are then heated (4) to fuse the resins and bond them to surfaces of the respective recesses (8, 13). A channel (15) is formed between the first and second recesses (8, 13) for receiving traces of the first and second components that may spill from the adjacent recesses.

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.