| Patents for D21F 1 - Wet end of machines for making continuous webs of paper (14,078) |
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| 07/19/1977 | US4036683 Web press for a paper machine |
| 07/19/1977 | US4035872 Method of closing fabric seams |
| 07/05/1977 | US4033049 Apparatus for changing the moisture content of paper webs or the like |
| 06/21/1977 | US4031013 Method and apparatus for fiber suspension dewatering |
| 06/21/1977 | US4030971 System compensating for pressure fluctuations in a paper machine headbox |
| 06/07/1977 | US4028174 Apparatus for collecting liquids thrown from a moving member |
| 05/31/1977 | US4026331 Jointing of fabric ends to form an endless structure |
| 05/17/1977 | US4024016 Cylinder mold former with flow box and pressure lid |
| 05/17/1977 | US4024015 Web-forming method and apparatus |
| 05/10/1977 | US4022696 Paper, pulp industries |
| 05/03/1977 | US4021296 Concentration |
| 05/03/1977 | US4021295 Method and apparatus for supplying white water from a single silo in the formation of a multi-ply web |
| 04/19/1977 | US4018302 Liquid-lubricated roll with anti-flooding barriers |
| 04/05/1977 | US4016033 Distribution means for aqueous slurry in papermaking machines |
| 03/29/1977 | US4014738 Sifting drum paper machine wherein the diluent water is controlled |
| 03/29/1977 | US4014736 Fluid flow, pressure differential |
| 03/29/1977 | US4014487 Web threading system |
| 03/15/1977 | US4012279 Process of producing pulp, for manufacture of fiberboard, in a closed backwater system |
| 03/08/1977 | US4011131 Lubricated suction box cover |
| 02/22/1977 | US4009073 Production of hardboard in a closed water system |
| 02/15/1977 | US4008123 Beam-deflection compensating structure for headboxes |
| 02/15/1977 | US4008122 Paper making machine with facing felt and forming wire |
| 02/15/1977 | US4008121 Method of curtain coating pigment particles on paper plies |
| 02/08/1977 | US4006760 Fabric connector seam |
| 01/25/1977 | US4004969 Paper machine drainage foil with wear-resistant insert |
| 12/28/1976 | US3999696 Web threading system |
| 12/21/1976 | US3998690 Fibrous assemblies from cationically and anionically charged fibers |
| 12/07/1976 | US3996098 Twin-wire paper machine with common wire path controls |
| 11/30/1976 | US3994773 Method and apparatus for detecting vertical displacement of an upper slice lip |
| 11/23/1976 | US3993537 Method of regulating a paper machine |
| 11/16/1976 | US3992253 Papermaking machine having a suction zone free of wire supports |
| 11/16/1976 | US3992252 Curtain coating apparatus for the manufacture of paperboard |
| 11/09/1976 | US3990940 Pulp molding system including a flexible mold carrying belt and an elastic pressing belt |
| 11/09/1976 | US3990637 Shower for fabric conditioning |
| 10/12/1976 | US3985612 Paper making system including forming fabrics and porous forming cylinders |
| 09/21/1976 | US3981768 Web-forming method and apparatus for paper-manufacturing machines |
| 09/21/1976 | US3981767 Apparatus and method for controlling the stock flow to a paper machine headbox |
| 09/07/1976 | US3979254 Secondary headbox for overlay application in board formation |
| 08/31/1976 | US3977938 Support beam for the rectifier section of a headbox |
| 08/24/1976 | US3976539 Adjustable slice for the headbox or the like of a paper or equivalent machine |
| 08/17/1976 | US3975568 Low-friction, wear-resistant material and process for making the same |
| 08/17/1976 | US3975329 Hydrolytic and thermal stability |
| 08/03/1976 | US3972771 Headbox with variable eddy decay length |
| 07/20/1976 | US3970514 Combination-paper machine |
| 07/20/1976 | US3970513 Paper machine |
| 06/29/1976 | US3966544 Papermaking machine |
| 06/29/1976 | US3966540 Manufacture of fiberboard according to the wet method with closed backwater system |
| 06/15/1976 | US3963562 Slurry distributor |
| 06/08/1976 | US3962031 Stock inlet for a paper machine |
| 06/01/1976 | US3960654 Shear pump headbox |
| 06/01/1976 | US3960653 Downflow control system for web making machines |
| 06/01/1976 | US3960650 Machine and method for making a laminate structure |
| 05/18/1976 | US3957087 Pin and truss cylinder construction |
| 05/18/1976 | US3956832 Web dryer arrangement |
| 05/04/1976 | US3954558 Feeding device for paper machines |
| 05/04/1976 | US3954557 Web treatment |
| 05/04/1976 | US3954554 Multi-ply paper and paperboard having a wet-laid ply and a dry-laid ply |
| 04/27/1976 | US3953284 Paper machines |
| 04/20/1976 | US3951480 Bearing lubrication system for bowed rolls |
| 04/20/1976 | US3950833 Roll covering composition |
| 04/13/1976 | US3949455 Flexure-compensating roll |
| 04/06/1976 | US3948722 Warp knitted paper maker's felt and method for the production thereof |
| 03/30/1976 | US3947317 Apparatus for adjusting and indicating position of a breast box lip |
| 03/30/1976 | US3946499 Heated dryer drum for paper machines and the like |
| 03/23/1976 | US3945882 Stock inlet arrangement for a paper-making machine |
| 03/16/1976 | US3944465 Headbox assembly for a papermaking machine |
| 03/16/1976 | US3944464 Forming section for twin-wire papermaking machine |
| 03/09/1976 | US3943035 Breast box having an adjustable lip in a paper making machine |
| 03/09/1976 | US3943034 Dewatering and homogenizing apparatus |
| 03/02/1976 | US3941435 Roller |
| 02/24/1976 | US3940308 Suction pipe with quick disconnect cover |
| 02/17/1976 | US3939037 Headbox with flexible trailing elements |
| 02/10/1976 | US3937273 Forming non-woven fibrous material |
| 02/03/1976 | US3936001 Anti-sag device for paper mill showers |
| 01/27/1976 | US3935109 Straining apparatus |
| 01/27/1976 | US3935061 Stock inlet for a paper machine |
| 01/20/1976 | US3933966 Method and device for spraying fluid into a headbox |
| 01/06/1976 | US3930934 Speed optimization control for fibrous sheet making machines such as paper making machines with dryer limited conditions |