| Patents for D21F 5 - Dryer section of machines for making continuous webs of paper (5,645) |
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| 02/05/1991 | US4990085 Arrangement for an exhaust in a plant arranged for the heat-treatment of products in form of a continuous strip |
| 02/02/1991 | CA2022428A1 Roll having a hollow cylinder with internal ducts for the pressure and heat treatment of a web of material |
| 01/22/1991 | US4986009 Process for drying a material web and device for the application of the process |
| 01/22/1991 | CA1279361C Drive system |
| 01/21/1991 | WO1991001407A1 Method and apparatus for manufacture of smooth and glossy papers |
| 01/17/1991 | DE3922361A1 Web drying partic. for paper or cardboard - by passing drying air blown and extracted at fourdrinier zone to prevent lateral streams of moist air |
| 01/15/1991 | CA1278915C Dryer differential pressure controller |
| 01/09/1991 | EP0406355A1 Process and installation for recovering the waste heat contained in the moist drying air issuing from the dryer of a papermaking machine |
| 01/09/1991 | CN1011148B Dryer differential pressure controller |
| 01/08/1991 | US4982513 Process and dryer section for drying a running web in a paper or board making machine |
| 01/07/1991 | CA2019028A1 Device for drying a material web |
| 01/01/1991 | US4980979 Vacuum roll transfer apparatus |
| 12/27/1990 | EP0404189A1 A method of making a two-ply tissue and a two-ply tissue product |
| 12/23/1990 | CA2019498A1 Layered two-ply tissue process and product |
| 12/12/1990 | EP0401325A1 Roller with rotary shell. |
| 12/04/1990 | US4975166 Feeding liquid through electrostatic field of variable intensity |
| 12/04/1990 | US4974340 Vacuum guide roll apparatus |
| 11/29/1990 | WO1990014467A1 Method and device for drying of paper in a paper making machine |
| 11/27/1990 | US4972608 Multi-cylinder dryer for a paper machine with supported draw of web |
| 11/23/1990 | WO1990014468A1 Improvement of drying cylinders in cardboard- and paper- manufacturing plants |
| 11/23/1990 | CA2053861A1 Improvement of drying cylinders in cardboard- and paper- manufacturing plants |
| 11/20/1990 | US4970805 Transfer apparatus for transferring a tail of a web |
| 11/14/1990 | CN1046951A Combination between press section and initial part of drying section in paper machine |
| 11/08/1990 | DE4013485A1 Web end feed |
| 11/06/1990 | US4968386 Apparatus for determining amplitude and frequency of web flutter |
| 11/06/1990 | US4967489 Multi-cylinder dryer with twin-wire draw and web transfer between the cylinder groups |
| 10/24/1990 | EP0393110A1 Apparatus for heat treatment of material, particularly infra-red radiation of a continuous paper web in a paper machine. |
| 10/23/1990 | US4964226 High turndown rotary dryer flights |
| 10/18/1990 | WO1990012151A1 Single-screen drying installation |
| 10/18/1990 | WO1990012150A1 Single-screen drying installation |
| 10/18/1990 | DE4010422A1 Paper making air distribution - which is a perforated tube mantle with own rotation and self-cleaning |
| 10/11/1990 | CA2014178A1 Pipe arrangement for distribution of air in a paper machine |
| 10/04/1990 | DE3910612A1 Ein-sieb-trockengruppe A-sieve-dry group |
| 10/04/1990 | DE3910600A1 Ein-sieb-trockengruppe A-sieve-dry group |
| 10/03/1990 | EP0390459A2 Power controller for heater load |
| 09/27/1990 | DE3942543C1 Drying cylinders for paper machines - are machined inside and out on same setting of machine tool |
| 09/13/1990 | DE3907481A1 Guide roll for a porous belt, for example a drying fabric of a paper machine |
| 09/13/1990 | DE3907480A1 Guide roll for a material web |
| 09/12/1990 | EP0256063B1 Process for operating a gas infra-red radiatior and gas infra-red radiatior |
| 09/11/1990 | US4955433 Heating or cooling roller |
| 09/11/1990 | US4955268 Apparatus containing a work surface heated with a heat carrier medium |
| 09/04/1990 | US4953297 Method of and device for pocket ventilation in the drying section of a paper machine, in particular for high-speed paper machines |
| 08/28/1990 | CA1273197A1 Rotary joint for stationary siphon |
| 08/28/1990 | CA1273196A1 Dryer felt run |
| 08/28/1990 | CA1273195A1 Web dryer with control of air infiltration |
| 08/23/1990 | DE4003956A1 Contactless web guide system - for endless foils based on nozzle with COANDA guide surface |
| 08/22/1990 | EP0383744A2 Multi-cylinder dryer for paper machine with supported draw of web |
| 08/22/1990 | EP0383466A1 A Yankee cylinder and a method for coating a Yankee cylinder |
| 08/21/1990 | US4949478 Arrangement for a process plant arranged for the heat treatment of strip-shaped products |
| 08/21/1990 | US4949475 Temperature compensated ventilating roll |
| 08/21/1990 | US4949471 Mechanical drying process applicable to papermaking |
| 08/17/1990 | CA2010266A1 Multi-cylinder dryer for paper machine with supported draw of web |
| 08/17/1990 | CA2010130A1 Arrangement of nozzles with "negative pressure intended for treatment of mobile material webs |
| 08/16/1990 | DE3904314A1 Air guide device for guiding an endless material web through a multi-stage machine, especially for use in the drying section of a paper machine |
| 08/14/1990 | US4948466 Inductively from outside a mantle by a magnetic field |
| 08/07/1990 | US4945655 Apparatus for cutting a tail from a web |
| 08/01/1990 | EP0248866B1 Method and apparatus for the levelling of the humidity profile of a continuous web by dielectric drying |
| 07/26/1990 | DE3900858A1 Roll |
| 07/24/1990 | US4943351 Transfer apparatus and method |
| 07/24/1990 | US4942675 Apparatus and method for regulating the profile of a paper web passing over a Yankee cylinder in an integrated IR-dryer/Yankee hood |
| 07/24/1990 | US4942674 Method in the drying of a paper web or equivalent |
| 07/17/1990 | CA1271655A1 Roll for processing a web or strip of material |
| 06/28/1990 | WO1990007029A1 Roller with rotary shell and process for operating it |
| 06/26/1990 | US4936025 Combination infrared and airborne drying of a web |
| 06/23/1990 | CA2006318A1 Arrangement for drying a fibre web |
| 06/21/1990 | CA2004372A1 Roll with a rotatable roll shell and method of operating the same |
| 06/19/1990 | US4934067 Apparatus for drying a web |
| 06/14/1990 | CA2004848A1 Multi-cylinder dryer and twin-wire draw for same as well as web transfer in the gaps between the cylinder groups in said dryer |
| 06/12/1990 | US4932140 Arrangement of pressure nozzles for the treatment of webs |
| 06/12/1990 | US4932139 Method of and an apparatus for drying a fibre web |
| 06/06/1990 | EP0266367B1 System for the recovery of discharged heat contained in the waste air from paper machine drier |
| 06/06/1990 | CN1042746A Manufacturing method of elastic paper by use of radial deviation method and its equipment |
| 05/23/1990 | EP0369172A2 Heated or cooled cylinder |
| 05/23/1990 | EP0368937A1 A dryer section apparatus. |
| 05/22/1990 | US4928013 Temperature insensitive moisture sensor |
| 05/17/1990 | WO1990005209A1 Process and installation for recovering the waste heat contained in the moist drying air issuing from the dryer of a papermaking machine |
| 05/15/1990 | US4924603 Device for removing condensate from a steam-heated drying cylinder or similar by means of a rotating syphon |
| 05/15/1990 | CA1268940A1 Arrangement in material drying systems |
| 05/09/1990 | EP0163738B1 Method of and apparatus for adjusting amount of water contained in paper sheet in drying step in papermaking process |
| 05/08/1990 | US4922627 Press drying concept |
| 05/01/1990 | US4920623 Heatable glazing or calendering roll |
| 04/24/1990 | US4918836 Tail cutter apparatus and method |
| 04/24/1990 | US4918828 Method and apparatus for drying a moving web |
| 04/19/1990 | WO1990004065A1 A dryer section apparatus |
| 04/11/1990 | CN1007525B Circular drying equipment for paper machine |
| 04/04/1990 | EP0290427B1 Dryer differential pressure controller |
| 03/22/1990 | WO1990002841A1 Intermediate vacuum roll for dryer |
| 03/22/1990 | WO1990002840A1 Vacuum roll transfer apparatus |
| 03/20/1990 | US4908956 For applying AC line power for drying |
| 03/20/1990 | CA1266815A1 Mat covered roll construction |
| 03/08/1990 | WO1990002225A1 A tail cutter apparatus and method |
| 03/07/1990 | CN1007072B Web transfer apparatus |
| 03/07/1990 | CN1007071B Apparatus for assisting transfer of web to drying section |
| 03/06/1990 | US4905380 Method and apparatus in a paper machine single-wire drying group |
| 03/06/1990 | US4905379 Intermediate vacuum roll for dryer |
| 02/28/1990 | EP0355873A1 Mechanical drying process applicable to papermaking |
| 02/22/1990 | WO1990001580A1 An apparatus for cutting a tail from a web |
| 02/21/1990 | CN1006917B Steam heated dryer drum having statinary siphon and spoiler bars |
| 02/13/1990 | US4899811 Cooling roll |
| 02/13/1990 | US4899463 Method and device in a cylinder dryer of a paper machine |