Barmag Barmer Maschinenfabrik AG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65H HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES178
 
  
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS128

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE32047 Process for the production of a crimped continuous multifilament yarnJul 10, 84Dec 17, 85[D02G]
RE31839 Bobbin transport apparatus and methodSep 28, 83Feb 26, 85[B65H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4804126 Yarn conveying apparatusExpiredDec 12, 86Feb 14, 89[B65H, B66D]
4796340 Method of threading a yarn processing nozzleExpiredOct 20, 86Jan 10, 89[D02G]
4794846 Proportional action valve with a biased spring unproportionately variable to the load pressureExpiredOct 22, 86Jan 03, 89[F15B]
4772185 Rotary vane pump having a plurality of inlet and outlet slots in a rotating sleeveExpiredNov 25, 86Sep 20, 88[F04C]
4763691 Hydraulic control valveExpiredSep 03, 86Aug 16, 88[F15B]
4743186 Melt spinning apparatusExpiredAug 29, 86May 10, 88[B29D]
4738104 Hydraulic power systemExpiredMar 20, 86Apr 19, 88[F16D]
4737087 Drive shaft seal for gear pump and methodExpiredDec 10, 85Apr 12, 88[B29F, F04C, F16J]
4731217 Method for melt spinning thermoplastic filament yarnExpiredAug 09, 85Mar 15, 88[D01D, B65H]
4720702 Method and apparatus for monitoring the tension of an advancing yarnExpiredJul 02, 86Jan 19, 88[G08B]
4720806 Method and apparaus for centrally collecting measured valuesExpiredMar 29, 85Jan 19, 88[G06G]
4704077 Melt spinning apparatusExpiredOct 16, 85Nov 03, 87[B29C]
4698959 Apparatus for twisting multifilament yarnExpiredJul 30, 86Oct 13, 87[D01H, D02G]
4697753 Stepped precision winding processExpiredMar 11, 86Oct 06, 87[B65H]
4698008 Melt spinning apparatusExpiredJun 20, 85Oct 06, 87[D01D]
4696633 Melt spinning apparatusExpiredMay 24, 85Sep 29, 87[D01D]
4691947 Yarn texturing nozzleExpiredJan 21, 86Sep 08, 87[D02G]
4685637 Yarn traversing guideExpiredAug 29, 86Aug 11, 87[B65H]
4680872 Yarn heating apparatus and methodExpiredMar 05, 86Jul 21, 87[F26B]
4681522 Melt spinning apparatusExpiredAug 20, 85Jul 21, 87[D01D]

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