| Patent Number |
Title Of Patent |
Date Issued |
| 5303484 |
Compact convective web dryer |
April 19, 1994 |
| A convective dryer for drying a moving coated web has at least one module arranged on one side of the path of web travel. The module includes a housing subdivided into a first chamber opening towards the path of web travel and a second adjacent enclosed chamber. Mutually spaced nozzle |
| 5230775 |
Blade edge loading control for doctoring apparatus |
July 27, 1993 |
| In a doctoring apparatus, blade edge loading is controlled along the sides of the surface being doctored. |
| 5149401 |
Simultaneously controlled steam shower and vacuum apparatus and method of using same |
September 22, 1992 |
| Method and system for applying steam to a paper forming web for the purpose of heating the web to improve the quality of the paper, and withdrawing steam through the use of a vacuum opposite the steam shower, by the simultaneously controlled removal of steam at equally spaced increments |
| 5138740 |
Doctor blade and blade to blade connector for pull through blade transfer system |
August 18, 1992 |
| In a pull through doctor blade transfer system, the blade ends are slotted at their working edges. The slots are arranged and configured to accept complimentarily shaped portions of a connecting link used to detachably connect the trailing end of a spent or worn blade to the leading end |
| 5136790 |
Method and apparatus for drying coated webs |
August 11, 1992 |
| A method and apparatus for drying a continuously moving web carrying a liquid, wherein the web is passed through a dryer in which the web is exposed to a recirculating flow of heated drying gas. Exhaust gas is diverted and discharged from the recirculating gas flow at a flow rate whi |
| 5090133 |
Steam shower apparatus and method of using same |
February 25, 1992 |
| A steam shower apparatus and method including a supply of steam which is fed through a Coanda nozzle and along a path running adjacent one surface of the apparatus which is heated to a temperature in excess of 175-180 degrees Fahrenheit. The sheet to which the steam is to be applied runs |
| 5066364 |
Blade edge loading control for pull through doctor blade transfer system |
November 19, 1991 |
| In a pull through doctor blade transfer system, blade edge loading is controlled along the sides of the surface being doctored to relieve loading forces and to achieve a gradual feathering of the blade during its initial application. |
| 5020245 |
Steam shower vacuum apparatus |
June 4, 1991 |
| An apparatus for removing excess steam from an area around a web, such as paper, the apparatus having a stationary vacuum pick-up slot positioned adjacent the web, a steam exhaust pipe leading from the pick-up slot to a vacuum header, an adjustable opening in the exhaust pipe in the vacu |
| 5014447 |
Positive pressure web floater dryer with parallel flow |
May 14, 1991 |
| A modified double slot impingement nozzle for floater dryers is used to maximum advantage by optimizing the relationships of the spacing between the nozzles and the nozzle lengths for each row of nozzles along the web. The nozzle is also used to advantage by optimizing the slot width of |
| 5007132 |
Hydraulic drive for pull through doctor blade transfer system |
April 16, 1991 |
| In a pull through doctor blade transfer system wherein a coiled blade is payed off one rotatable reel while simultaneously being taken up on another rotatable reel, with an intermediate portion of the blade between the reels being supported in a blade holder arranged to apply the blade t |
| 4867054 |
Caliper control system |
September 19, 1989 |
| A caliper control system for controlling the thickness and sheet quality of paper passing between calender rolls of a calender stack includes a distribution chamber which houses a supply of heat transfer fluid. A series of nozzles extends across the width of the unit in the cross mac |
| 4848633 |
Non-contact web turning and drying apparatus |
July 18, 1989 |
| Disclosed is an apparatus for transporting a web about a nonlinear path without allowing the apparatus to contact the web. The apparatus includes a series of positive pressure nozzles which emit a primary jet flow of fluid in a single direction, and a secondary jet flow of fluid in a |
| 4802928 |
Doctoring apparatus and method employing prestressed doctor blade |
February 7, 1989 |
| A doctor blade assembly has a doctor blade supported in a blade holder. The blade has a projecting front edge adapted to be placed in contact with a moving surface to be doctored, and a rear edge adapted to be received in the blade holder. The blade is preloaded in a manner such that ten |
| 4789432 |
Doctoring apparatus |
December 6, 1988 |
| An apparatus for doctoring a cylindrical rotating surface, comprising a doctor back mounted for rotation about a first axis, and a blade carrier assembly mounted on the doctor back for rotation about a second parallel axis. A doctor blade is removably supported by the blade carrier assem |
| 4779358 |
Quick mounting, locating and support arrangement for nozzles for a web drying system |
October 25, 1988 |
| A nozzle assembly for a web drying apparatus that can be quickly assembled and disassembled from the front or tending side of the web drying apparatus. At the rear of the web drying apparatus, instead of the normal bolt fastening system, a slidable connection is provided between the |
| 4777736 |
System for drying web material utilizing removable/adjustable nozzle |
October 18, 1988 |
| A flotation drying system utilizing a nozzle assembly having a mounting system that enables quick assembly and disassembly of the system. The nozzle assembly comprises one or more high pressure supply headers or bulkheads, a nozzle housing extending across the grooved face of the one |
| 4765067 |
Steam-shower apparatus and method of using same |
August 23, 1988 |
| Disclosed is a steam-shower apparatus and method including a supply of steam which is fed through a Coanda nozzle and along a path running adjacent one surface of the apparatus which is heated to a temperature in excess of 212 degrees Fahrenheit. The sheet to which the steam is to be |
| 4763424 |
Apparatus and method for the control of web or web-production machine component surface temperat |
August 16, 1988 |
| Disclosed is an apparatus and method for providing a shower of fog onto a web or a machine component in contact with a web or for applying a layer of moisture to a web. The fog, which as a temperature lower than the temperature of the surface of the web or the machine component to be |
| 4757619 |
Suction transfer system for high speed paper dryer |
July 19, 1988 |
| A suction transfer device located over a length of a single continuous dryer fabric extending between two rolls and below which length the web to be dried extends, with the device producing preferential negative pressure in active sections at the edges of the fabric with relation to a |
| 4702015 |
Evaporative-cooling apparatus and method for the control of web or web-production machine compon |
October 27, 1987 |
| Disclosed is an apparatus for providing a shower of fog onto a web or a machine component in contact with a web. The fog, which has a temperature lower than the temperature of the surface of the web or the machine component to be cooled, is applied to the surface and is caused to eva |
| 4691406 |
Doctoring apparatus |
September 8, 1987 |
| A doctoring apparatus employs a doctor blade having a length greater than the face length of the surface being doctored. A blade holder applies an intermediate portion of the blade to the doctored surface. The blade is movable longitudinally through the blade holder, and has continuing |
| 4689895 |
Evaporative-cooling apparatus and method for the control of web or web-production machine compon |
September 1, 1987 |
| Disclosed is an apparatus for providing a shower of fog onto a web or a machine component in contact with a web. The fog, which has a temperature lower than the temperature of the surface of the web or the machine component to be cooled, is applied to the surface and is caused to eva |
| 4685221 |
Steam-shower apparatus and method of using same |
August 11, 1987 |
| Disclosed is a steam-shower apparatus and method including a supply of steam which is fed through a Coanda nozzle and along a path running parallel with one surface of the apparatus. The sheet to which the steam is to be applied runs parallel to this same surface of the machine, but in |
| 4665859 |
Finger-type doctor blade holder |
May 19, 1987 |
| A finger-type doctor blade holder has a plurality of pressure fingers spaced along the underside of a loading plate. A doctor blade is removably supported in recesses defined between the pressure fingers and the loading plate, and the pressure fingers are mounted for pivotal movement abo |
| 4665631 |
Air sealing nozzle for high speed dryer |
May 19, 1987 |
| An assembly for use at the nip between a dryer fabric and a dryer bottom roll at a location at which the fabric moves onto the roll and at which the web to be dried is outside the fabric. A shroud having first and second walls which diverge from a nose is assembled with a plenum chamber |
| 4630328 |
Self-compensating support element and end closure therefor |
December 23, 1986 |
| For use in a doctor blade holder or the like, a self-compensating support element consisting of a hollow elongated flexible tube filled, except for the end regions thereof, with an incompressible liquid. Pliable inserts are received in the tube end regions, and tubular metal sleeves are |
| 4606137 |
Web dryer with control of air infiltration |
August 19, 1986 |
| A unique nozzle assembly (11, 12) is provided for placement within the chamber (4) of a web dryer (1) and closely adjacent a housing web slot (5, 6). The nozzle assembly generally comprises a Coanda-type nozzle (27) and a supplemental nozzle (33) disposed on the assembly so that it is |
