Abstract: A pilot unit for an abatement apparatus and a method are disclosed. The pilot unit is for an abatement apparatus configured to abate an effluent stream from a semiconductor processing tool. the pilot unit comprises: a housing retaining a foraminous pilot surface. the housing and foraminous pilot surface defining a plenum which is configured to convey fuel and oxidant from a corresponding housing inlet and through that foraminous pilot surface: and an ignitor configured to ignite the fuel and oxidant when exiting the foraminous pilot surface. In this way. rather than having an ignition flame combusting from a nozzle. an ignition flame is provided across the foraminous pilot surface which provides for a more reliable ignition source for the abatement apparatus.

Abstract: A decorative mobile comprising a central housing having a musical drive unit disposed therein. Integrally connected to and extending outwardly from the housing in intervals of approximately 120 degrees are three arcuately contoured elongate arms. Two of the arms are of a first substantially equal length, with the remaining arm being of a second length which is less than the first length.