SOUTHERN GAS ASSOCIATION GAS MACHINERY RESEARCH COUNCIL

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 260
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS272
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING271
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 132
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 172
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 171
 
  
 
G10K SOUND-PRODUCING DEVICES 134

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8740581 Pressure recovery insert for reciprocating gas compressorMar 30, 10Jun 03, 14[F04B, E04F]
8740590 Hyperbolic horn for pulsation filter device used with gas compressorDec 17, 07Jun 03, 14[F01N, F04B, F04D]
8584698 Programmable device for compressor valveMar 30, 09Nov 19, 13[F16K]
7946382 Gas compressor with side branch absorber for pulsation controlMay 23, 07May 24, 11[G10K, F01N]
7866147 Side branch absorber for exhaust manifold of two-stroke internal combustion engineSep 29, 06Jan 11, 11[F01M, F01N, F02B]
7762521 Semi-active compressor valveMay 23, 07Jul 27, 10[F16K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0212,315 HYPERBOLIC HORN FOR PULSATION FILTER DEVICE USED WITH GAS COMPRESSORAbandonedMar 27, 14Jul 31, 14[F04B]
2012/0144,671 GAS COMPRESSOR WITH PULSATION ABSORBER FOR REDUCING CYLINDER NOZZLE RESONANT PULSATIONAbandonedFeb 21, 12Jun 14, 12[B23P]
8123498 Tunable choke tube for pulsation control device used with gas compressorExpiredJan 24, 08Feb 28, 12[F01N, F04B]
2008/0253,900 GAS COMPRESSOR WITH PULSATION ABSORBER FOR REDUCING CYLINDER NOZZLE RESONANT PULSATIONAbandonedApr 11, 07Oct 16, 08[F04B]
6981838 Method and apparatus for detecting the occurrence of surge in a centrifugal compressorExpiredFeb 26, 02Jan 03, 06[F04D]

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