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  • CPC
  • D21G3/02
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Parent Industries

DTEXTILES PAPER D21Papermaking D21GCALENDERS ACCESSORIES FOR PAPER-MAKING MACHINES D21G3/00Doctors

Current Industry

D21G3/02for calenders
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Doctor blade holders and doctor blade holder systems including plan...
    • Patent number 10,190,258
    • Issue date Jan 29, 2019
    • Kadant Inc.
    • Michael Draper
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    System for keeping calender rolls of a paper machine clean
    • Patent number 7,147,754
    • Issue date Dec 12, 2006
    • Metso Paper, Inc.
    • Pentti Rautiainen
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Method and equipment for cleaning and maintaining rolls
    • Patent number 6,905,573
    • Issue date Jun 14, 2005
    • Metso Paper, Inc.
    • Tapio Mäenpää
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Calendar roll cleaning apparatus
    • Patent number 6,729,230
    • Issue date May 4, 2004
    • Fuji Photo Film Co., Ltd.
    • Masayuki Okawa
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Web embossing method
    • Patent number 6,287,421
    • Issue date Sep 11, 2001
    • Fort James Corporation
    • John H. Dwiggins
    • B08 - CLEANING
  • Information Patent Grant

    Method of embossing a web and cleaning deposits from embossing roll
    • Patent number 6,283,018
    • Issue date Sep 4, 2001
    • Fort James Corporation
    • John H. Dwiggins
    • B08 - CLEANING
  • Information Patent Grant

    Embossing roll cleaning apparatus
    • Patent number 6,250,902
    • Issue date Jun 26, 2001
    • Fort James Corporation
    • John H. Dwiggins
    • B08 - CLEANING
  • Information Patent Grant

    Embossing roll cleaning method
    • Patent number 6,093,256
    • Issue date Jul 25, 2000
    • John H. Dwiggins
    • B08 - CLEANING
  • Information Patent Grant

    Method for cleaning rolls
    • Patent number 5,651,832
    • Issue date Jul 29, 1997
    • Valmet Corporation
    • Vesa Ahvenniemi
    • B08 - CLEANING
  • Information Patent Grant

    Utilization of a suction nozzle and jet nozzle for cleaning moving...
    • Patent number 5,603,775
    • Issue date Feb 18, 1997
    • Staffan Sjoberg
    • B08 - CLEANING
  • Information Patent Grant

    Cleaning apparatus for rolls
    • Patent number 5,519,945
    • Issue date May 28, 1996
    • Valmet Corporation
    • Vesa Ahvenniemi
    • B08 - CLEANING
  • Information Patent Grant

    Pivoting polishing block for use in apparatus for cleaning and poli...
    • Patent number 5,460,565
    • Issue date Oct 24, 1995
    • George C. Perneczky
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Polishing doctor blade with diamond abrasive particles for a calend...
    • Patent number 5,174,862
    • Issue date Dec 29, 1992
    • S. D. Warren Company
    • Gregory H. Hale
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Roll surface cleaning device
    • Patent number 4,953,252
    • Issue date Sep 4, 1990
    • Fuji Photo Film Co., Ltd.
    • Taiji Akisawa
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Apparatus for cleaning calender rolls and the like
    • Patent number 4,852,209
    • Issue date Aug 1, 1989
    • Kleinewefers GmbH
    • Peter Svenka
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Rolling device having a controlled-deflection roll
    • Patent number 4,111,746
    • Issue date Sep 5, 1978
    • Escher Wyss Limited
    • Mario Biondetti
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Controlled-deflection roll
    • Patent number 4,092,916
    • Issue date Jun 6, 1978
    • Escher Wyss Limited
    • Christoph Link
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3840933
    • Patent number 3,840,933
    • Issue date Oct 15, 1974
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3775241
    • Patent number 3,775,241
    • Issue date Nov 27, 1973
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3387384
    • Patent number 3,387,384
    • Issue date Jun 11, 1968
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3378876
    • Patent number 3,378,876
    • Issue date Apr 23, 1968
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3327341
    • Patent number 3,327,341
    • Issue date Jun 27, 1967
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3270435
    • Patent number 3,270,435
    • Issue date Sep 6, 1966
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3146490
    • Patent number 3,146,490
    • Issue date Sep 1, 1964
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3130438
    • Patent number 3,130,438
    • Issue date Apr 28, 1964
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3122090
    • Patent number 3,122,090
    • Issue date Feb 25, 1964
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3077629
    • Patent number 3,077,629
    • Issue date Feb 19, 1963
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3065487
    • Patent number 3,065,487
    • Issue date Nov 27, 1962
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3017618
    • Patent number 3,017,618
    • Issue date Jan 16, 1962
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3014833
    • Patent number 3,014,833
    • Issue date Dec 26, 1961
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents