Kleinewefers GmbH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5439366 Safety device for a roll space of a calender or similar roll machineExpiredOct 21, 93Aug 08, 95[B29C, B41F, D21G]
5289766 Apparatus for cooling calender rolls and the likeExpiredFeb 01, 93Mar 01, 94[D21G, B30B]
5241903 Guard for the nips of rolls in calenders and the likeExpiredSep 20, 91Sep 07, 93[B41F]
5208956 Roll for use in calenders and like machinesExpiredMar 06, 92May 11, 93[B21B]
5206978 Hydrostatic roll for use in calendersExpiredSep 20, 91May 04, 93[B21B]
5111564 Heatable roll for use in calenders and the likeExpiredSep 20, 90May 12, 92[B21B]
5063649 Roll assembly with rotatable shell for use in calenders and like machinesExpiredJan 24, 91Nov 12, 91[B21B]
5042373 Guard for the nips of rolls in calenders and like machinesExpiredNov 20, 89Aug 27, 91[F16P, B30B]
5033317 Apparatus for ascertaining the magnitude of stresses upon the bearings for rolls in calenders and like machinesExpiredFeb 22, 90Jul 23, 91[G01M, G01L]
5029521 Calender and method of operating the sameExpiredOct 18, 88Jul 09, 91[B30B]
5024718 Label applying apparatusExpiredOct 13, 89Jun 18, 91[B65C]
4964202 Heatable roll for use in calenders and the likeExpiredApr 27, 89Oct 23, 90[B21B]
4958478 Apparatus for storing and supplying end closures for envelopes of cylindrical commoditiesExpiredFeb 08, 89Sep 25, 90[B65B]
4941607 Magazine for calender rollsExpiredDec 08, 88Jul 17, 90[B65H, B30B]
4932536 Magazine for calender rollsExpiredNov 16, 88Jun 12, 90[A47F]
4932827 Apparatus for exchanging rolls in calendersExpiredNov 16, 88Jun 12, 90[B66F, D21G, B21B]
4903517 Method of and apparatus for regulating the operation of calenders and like machinesExpiredMay 09, 88Feb 27, 90[B21B]
4867055 Guard for the nips of rolls in calendersExpiredJun 09, 88Sep 19, 89[F16P, B29B]
4852209 Apparatus for cleaning calender rolls and the likeExpiredMay 16, 88Aug 01, 89[B21B]
4848119 System of rolls for use in calenders and like machinesExpiredApr 07, 87Jul 18, 89[B21B]

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