78353284
Jan 16, 2004
All orifices, nozzles, restrictors, jets and pinholes that have been specifically prepared so as to have a special shard edge machined or lapped so as to fix the coefficient of discharge so that the liquid flow or gas flow will exhibit controlled CD values; This process includes laser machining, wire lapping, precision boring, lapping, honeing, chemical etching, precision machining, electopolishing or other operations designed to enhance the best edge profile; Products such as orifice inserts, fittings, connectors, glands, and plates as well as jets, nozzles and spray devices incorporating this sharp edge profile which has been specially applied are included in the scope
Electrical and Scientific Apparatus