HERGETH HOLLINGSWORTH GMBH, A GERMAN CORP

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5408727 Method and apparatus for mixing and opening pneumatically supplied fiber materialExpiredOct 14, 93Apr 25, 95[D01G]
5400475 Nonwoven laying device having downward angled conveyor at delivery carriageExpiredApr 28, 94Mar 28, 95[D01G]
5353477 Process for laying a nonwoven or the like, and nonwoven laying deviceExpiredSep 29, 92Oct 11, 94[D01G]
5343597 Method and device for opening and cleaning fiber materialExpiredMay 21, 92Sep 06, 94[D01B]
5337455 Device and method for pneumatically feeding a feeding chuteExpiredAug 29, 91Aug 16, 94[D01G]
5326194 Device and method for pneumatically feeding a plurality of feeding chutesExpiredSep 23, 92Jul 05, 94[B65G]
5276946 Multiple bale openerExpiredApr 03, 92Jan 11, 94[D01G]
5236343 Opening deviceExpiredApr 03, 92Aug 17, 93[B02C]
5221053 Device for opening pressed fiber balesExpiredApr 03, 92Jun 22, 93[B02C]
5201103 Method and apparatus for joining nonwoven fiber fabrics, in particular textile fiber fabricsExpiredJan 07, 91Apr 13, 93[D04H]
5197162 Apparatus having partial exhaust conduit fiber compacting air flowExpiredOct 07, 91Mar 30, 93[D01G]
5175909 Suction deviceExpiredJul 31, 91Jan 05, 93[D01G]
5090629 Opening deviceExpiredOct 22, 90Feb 25, 92[D01G]
5072491 Hopper feeder for producing a mixture of fiber, material, in particular of textile fiber materialExpiredApr 09, 90Dec 17, 91[D01G]
5044046 Blending device for spinning material fibersExpiredApr 16, 90Sep 03, 91[B65G, D01G]
5007137 Carding apparatusExpiredJan 04, 90Apr 16, 91[D01G]
5005261 Device for pneumatically feeding fiber material to a chute or the likeExpiredFeb 13, 90Apr 09, 91[D01G]
5001814 Apparatus for opening fiber bales of spinning materialExpiredMar 14, 89Mar 26, 91[D01G]
4993117 Opening device with metal detector and stop-offExpiredJan 31, 90Feb 19, 91[D01G]
4968188 Apparatus and method for uniformly supplying fiber flock in a chute feedExpiredJul 24, 85Nov 06, 90[B65G]

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