CENTRAL SPRINKLER CORP <CNSP> 1ST QTR JAN 31 NET Shr 19 cts vs 20 cts Shr diluted 18 cts vs 18 cts Net 578,000 vs 554,000 Sales 10.7 mln vs 10.4 mln Avg shrs 3,006,s302 vs 2,795,820 Avg shrs diluted 4,271,488 vs 4,081,534