Abstract: A system for retaining boiler tubes in an array includes a bracket having a contoured surface defining at least one channel, the channel being semi-cylindrical and defined by an elongated cross section having a rounded portion and two elongated legs extending therefrom to define a substantially U-shaped cross section, and a planar section located at a terminus of each leg. The system also comprises a plate connectable to at least one planar section of the bracket. A method of manufacturing a cuff for a boiler tube assembly includes bending a bracket having at least one channel therein, the channel being configured to receive a boiler tube of the boiler tube assembly; and machining a plate, the plate being configured and sized to be positioned over the channel.

Abstract: A room temperature storage stable meat-containing solid pet food having a moisture content within the intermediate moisture range and simulating in appearance and texture marbleized lean red meat in chunk form prepared by a process which comprises co-extruding a first ingredient phase simulating lean meat and a second ingredient phase simulating fat into and through an enclosed blending compartment having oriented therein a plurality of stationary elements which cut, divide and axially rotate substantial portions of the first and second ingredient phases and simultaneously maintaining a pressure within the blending compartment from about 250 to 400 psig sufficient to bind the phases together and to form a casting of randomly blended first and second ingredient phases; heat setting the casting of blended ingredient phases to form a structurally stable material; and subdividing and shaping the heat set casting of blended phases into small pieces resembling small cuts of lean meat marbled with fat.