CENTRAL SPRINKLER COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A62C FIRE-FIGHTING 324

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5669449 Directional sprinklersFeb 28, 95Sep 23, 97[A62C]
5609211 Extended coverage automatic ceiling sprinklerMar 22, 95Mar 11, 97[A62C]
5366022 Extended coverage ceiling sprinklers and systemsApr 29, 92Nov 22, 94[A62C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2003/0062,718 Ferrous pipe couplings and prelubricated coupling gasketsAbandonedSep 28, 01Apr 03, 03[F16L]
5520207 Remotely monitored tamper bar for a backflow preventerExpiredMay 31, 94May 28, 96[F16K]
5149144 Pipe branch fitting and branch appliance thereforExpiredMar 16, 89Sep 22, 92[F16L]
5104153 Fittings for pipeExpiredNov 15, 88Apr 14, 92[F16L]
5094298 Fire sprinkler apparatusExpiredDec 12, 89Mar 10, 92[A62C]
5083616 Ceiling sprinklerExpiredJun 11, 90Jan 28, 92[A62C]
D318096 Ceiling cover for pendent style sprinklersExpiredSep 27, 88Jul 09, 91[]
4991656 Quick release valve for sprinkler headExpiredMar 30, 90Feb 12, 91[A62C]
4976320 Concealed sprinkler with drop down deflector assembly, and improved fusible valve lever assemblyExpiredMay 25, 89Dec 11, 90[A62C]
4957169 Sprinkler valve assemblyExpiredFeb 06, 90Sep 18, 90[A62C]
4926946 Pendent style sprinkler with coverExpiredNov 08, 88May 22, 90[A62C]
4854342 Clapper seal for dry pipe valveExpiredSep 14, 88Aug 08, 89[F16K]
4830115 Valve assembly for sprinkler headExpiredOct 28, 86May 16, 89[A62C]
4739835 Quick response glass bulb sprinklerExpiredJun 23, 86Apr 26, 88[A62C]
4732216 Quick release mechanism for sprinkler headExpiredApr 21, 86Mar 22, 88[A62C]
4711099 Portable quick chilling deviceExpiredAug 29, 86Dec 08, 87[F25D]
4648459 Low preload self-sealing quick release valve for sprinkler headExpiredOct 30, 85Mar 10, 87[A62C]
4630682 Rapid response sprinkler headExpiredFeb 21, 85Dec 23, 86[A62C]
4619327 Sprinkler headExpiredJan 07, 85Oct 28, 86[A62C]
4618001 Sprinkler head with electrical sensorExpiredMar 18, 85Oct 21, 86[A62C]

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