Abstract: A sector for a disc-shape filter including a substantially sector-shape element having a pair of opposed sides and a pair of opposing edges including a leading and a trailing edge converging towards each other and terminating in a neck at one end and diverging in the other direction to terminate in an arcuate outer edge. An arrangement of flow paths is on each side and positioned to direct filtrate toward the neck. The element is adapted to be interconnected with a plurality of similar sectors to form a disc-shaped filter and adapted to be interconnected with a source for pressure differential so that when a filter medium is mounted thereon, filtrate collected therethrough will be directed to the neck for removal. The flow paths are in a predetermined non-symmetrical arrangement of channels in the outer surface of each side with the channel arrangement adjacent the leading edge being different from the channel arrangement adjacent the trailing edge.

Abstract: A sector for a disc-shaped filter. The device includes a substantially sector-shaped element having a pair of opposed sides, a pair of opposing edges converging toward each other and terminating in a neck at one end and diverging toward the other direction to terminate at an arcuate outer edge. An arrangement of flow paths is on each side and positioned to direct fluid filtrate toward the neck. The element is adapted to be interconnected with a plurality of similar sectors to form a disc-shaped filter and is adapted to be interconnected with a source for pressure differential so that when a filter medium is mounted thereon, filtrate collected therethrough will be directed to the neck for removal.

Abstract: A process is provided for coating a given surface of a heat sensitive metal article (e.g., thermally massive aluminum) with a high-cure-temperatureating-forming-powder. A first oven heating step elevates the metal article's temperature to a predetermined preheat cycle high-limit-of-heat-load-temperature. After a first predetermined period of time, the metal alloy article is withdrawn from the oven. A high-cure-temperature-coating-forming-powder is then sprayed onto the given surface of the metal article. The spraying, comprising first and second spray sequences, is initiated essentially immediately after withdrawal of the metal article from the oven. The first spray sequence is a single group of spray passes that applies a coating layer to fill the pores in the given surface with heat melted high-cure-temperature-coating-forming-powder. The second spray sequence builds up the total thickness of coating.