Herrmann Wangner GmbH & Co KG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5134759 Plate and separator containing such a plate for seizing and separating threadsExpiredFeb 26, 91Aug 04, 92[D03D, D02J]
5016678 Double-layer papermaking fabric having a single system of non-symmetrically extending longitudinal threadsExpiredMay 11, 89May 21, 91[D03D]
5003675 Separator for seaming machinesExpiredMar 20, 90Apr 02, 91[D03D]
5000230 Loom sley movement with a toggle jointExpiredJan 16, 90Mar 19, 91[D03D]
4934414 Double-layer papermaking fabricExpiredJan 13, 89Jun 19, 90[D03D]
4928737 Fabric for the sheet forming section of a papermaking machineExpiredFeb 14, 89May 29, 90[D21F]
4915143 Selectively feeding one of a plurality of weft threads to a gripper projectileExpiredMar 16, 89Apr 10, 90[D03D]
4895187 Picking device for the picking motion of a loomExpiredOct 18, 88Jan 23, 90[D03D]
4866821 Mechanism for separating threads held in an arrayExpiredJul 22, 88Sep 19, 89[D03D]
4862566 Auxiliary device for a seam weaving machine for joining the ends of flat-woven fabricsExpiredSep 30, 88Sep 05, 89[D03D]
4837945 Dryer, particularly for the chemical industryExpiredOct 13, 87Jun 13, 89[F26B]
4815503 Fabric for the sheet forming section of a papermaking machineExpiredOct 06, 87Mar 28, 89[D03D]
4776373 Fabric for the sheet forming section of a papermaking machineExpiredOct 19, 87Oct 11, 88[D03D]
4750253 Method and apparatus for producing a flat spiral link assemblyExpiredDec 22, 86Jun 14, 88[B21F]
4739803 Fabric for the sheet forming section of a papermaking machineExpiredSep 10, 86Apr 26, 88[D03D]
4702952 Sheet forming fabric with reinforced marginsExpiredJan 17, 86Oct 27, 87[D03D, D21F, B32B]
4676369 Spiral link belt with protected edgesExpiredJan 17, 86Jun 30, 87[B65G]
4649074 Papermachine fabric in the form of a spiral link belt covered with nonwoven fabricExpiredJul 31, 86Mar 10, 87[D03D]
4602660 Pneumatic shuttle picking mechanismExpiredJul 10, 85Jul 29, 86[D03D]
4592395 Papermachine clothing in a fabric weave having no axis of symmetry in the length directionExpiredFeb 27, 84Jun 03, 86[D03D, D21F]

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