A.W. CHESTERTON COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS4315
 
  
 
D04C BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE 39
 
  
 
D06P DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM 316
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS128
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0051,810 METHODS AND APPARATUSES FOR PRODUCING A BRAIDED DUAL-SIDED COMPRESSION PACKING SEAL AND METHODS OF USING THE SAMEOct 27, 17Feb 22, 18[D04C, F16J]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9810324 Methods and apparatuses for producing a braided dual-sided compression packing seal and methods of using the sameSep 26, 12Nov 07, 17[D04C, F16J]
9657841 Loading mechanism for fluid sealsMar 26, 14May 23, 17[F16K, F16J]
9546734 Self aligning split mechanical seal employing a selectively engageable axial biasing assemblyDec 09, 13Jan 17, 17[F16J]
9388903 Methods and apparatuses for producing a compression packing seal including a dual-sided braided jacket and methods of using the sameSep 26, 13Jul 12, 16[D04C, F16J]
9366340 Non-contacting labyrinth seal assemblyJan 29, 14Jun 14, 16[F16J]
9188229 Gland packing yarnNov 06, 09Nov 17, 15[D02G, F16J]
8720899 Dynamic sealingDec 22, 11May 13, 14[F16J]
8091897 Mechanical seal assemblyMay 17, 06Jan 10, 12[F16J]
8083235 Dynamic sealingFeb 28, 08Dec 27, 11[F16J]
7806411 Radial seal assemblyNov 27, 06Oct 05, 10[F16J]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0114,326 MULTI-PIECE STACKED SEALING SYSTEM AND METHOD OF USING SAMEAbandonedMay 07, 10May 19, 11[E21B]
2005/0242,516 Automatically disengaging spacing mechanism for a mechanical sealAbandonedJun 15, 05Nov 03, 05[F16J]
6695480 Opposed flow seal/bearing assemblyExpiredJan 11, 02Feb 24, 04[F16C, F04D]
2002/0096,835 Split mechanical face sealAbandonedApr 05, 01Jul 25, 02[F16J]
2002/0061,316 Immunotherapeutic stress protein-peptide complexes against cancerAbandonedNov 14, 01May 23, 02[A61K]
6210103 Rotary seal and/or bearingExpiredMar 31, 98Apr 03, 01[F04D]
5984627 Seal/bearing apparatusExpiredDec 19, 97Nov 16, 99[F16J]
5827042 Seal/bearing assemblyExpiredDec 19, 96Oct 27, 98[F04D]
5800120 Pump impeller with adjustable bladesExpiredNov 01, 96Sep 01, 98[F03D]
5544897 Cartridge seal having a high contact pressure seal and means for intersleeve adjustment including quench fluid deliveryExpiredAug 19, 93Aug 13, 96[F16J]
5426985 Multirange adjustable flow controlExpiredAug 31, 93Jun 27, 95[G01F]
5398944 Sealing system for reciprocating rodExpiredDec 07, 92Mar 21, 95[E21B, F16J]
5372730 Filtering system for pump shaft sealsExpiredAug 17, 93Dec 13, 94[B01D]
5333882 Balanced mechanical seal assembly and flow ring thereforExpiredJul 14, 92Aug 02, 94[F16J]
5129482 Closed lubrication system for bearingsExpiredSep 13, 90Jul 14, 92[F01M, F01P]
5071139 Pressure activated emergency/temporary sealExpiredDec 27, 89Dec 10, 91[F16J]
5026077 Omni-directional articulated mounting assembly for shaft sealsExpiredFeb 21, 90Jun 25, 91[F16J]
4997191 Adjustable shaft seal and method of adjustmentExpiredOct 17, 89Mar 05, 91[F16J]
4989882 Shaft seal with predetermined mounting parametersExpiredSep 14, 89Feb 05, 91[F16J]
4973065 Seal assemblyExpiredOct 20, 89Nov 27, 90[F16J]

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