| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Durable acoustical panel and method of making the same | US10201377 | 2002-07-23 | US06616804B2 | 2003-09-09 | Robert E. Foster; Larry R. Parks; James R. Lokey; John J. Janczura; Robert G. Ganse; Barry Buhay; Walter W. Chamberlain; John Felegi, Jr. |
| An acoustical panel has a fiberboard which includes a fibrous filler and a base binder, and a nodulated overlay disposed on the fiberboard, wherein the overlay includes nodulated wool and an overlay binder and has a substantially smooth surface. In one embodiment of the present invention, the fibrous filler is mineral wool and the base binder is granular starch. In an another embodiment of the present invention, the nodulated wool is nodulated mineral wool and the overlay binder is cooked pearl cornstarch. A method of making the durable acoustical panel in accordance with the present invention is disclosed. Initially, an aqueous slurry comprising a fibrous filler, a base binder, and water is formed. The aqueous slurry is deposited onto a moving foraminous support wire to form an aqueous felt, thereby creating a continuous process. Thereafter, the aqueous felt is de-watered to form a wet felt. The wet felt is coated with an aqueous overlay comprising nodulated wool, overlay binder, and water and has a substantially smooth surface. Finally, the wet felt and aqueous overlay are dried to form the ceiling panel. | ||||||
| 202 | Method and apparatus for encoding paper with information | US09515545 | 2000-02-29 | US06608919B1 | 2003-08-19 | Adnan M. Alattar |
| Paper is textured with a pattern that yields a known signature signal when transformed to the frequency domain. This signature can be used for various purposes, including determining the angular orientation of the paper when scanned, conveying a plural-bit digital watermark, and for simple document recognition purposes (e.g., photocopiers that refuse to reproduce banknotes). The texturing can be effected during the paper-making process, e.g., by shaping the surface of a de-watering element accordingly. | ||||||
| 203 | Durable acoustical panel and method of making the same | US09860271 | 2001-05-18 | US20020096278A1 | 2002-07-25 | Robert E. Foster; Larry R. Parks; James R. Lokey; John J. Janczura; Robert G. Ganse; Barry Buhay; Walter W. Chamberlain; John Felegi JR. |
| An acoustical panel has a fiberboard which includes a fibrous filler and a base binder, and a nodulated overlay disposed on the fiberboard, wherein the overlay includes nodulated wool and an overlay binder and has a substantially smooth surface. In one embodiment of the present invention, the fibrous filler is mineral wool and the base binder is granular starch. In an another embodiment of the present invention, the nodulated wool is nodulated mineral wool and the overlay binder is cooked pearl cornstarch. A method of making the durable acoustical panel in accordance with the present invention is disclosed. Initially, an aqueous slurry comprising a fibrous filler, a base binder, and water is formed. The aqueous slurry is deposited onto a moving foraminous support wire to form an aqueous felt, thereby creating a continuous process. Thereafter, the aqueous felt is de-watered to form a wet felt. The wet felt is coated with an aqueous overlay comprising nodulated wool, overlay binder, and water and has a substantially smooth surface. Finally, the wet felt and aqueous overlay are dried to form the ceiling panel. | ||||||
| 204 | Method and apparatus for manufacturing a dryformed fibrous web | US09879815 | 2001-06-13 | US20020066517A1 | 2002-06-06 | John Hardy Mosgaard Christensen; Helmut Erwin Schilkowski |
| The present invention relates to webs made of cellulose fibers admixed with thermobonding fibers, wherein the web surfaces are sealed to a greater or lesser extent by adding thereto a binder in modest amounts. The binder is applied without any attempt to provide deep penetration of said binder into the web material. By applying the binder in the form of a foam, a minimum of binder is required to provide bonded webs exhibiting minimal Tinting. | ||||||
| 205 | Method and a system for manufacturing broad airlaid paper webs containing an absorbing powder | US793974 | 1997-05-27 | US5885516A | 1999-03-23 | John Harly Mosgaard Christensen |
| Method and apparatus of forming an air laid paper web. Superabsorbing powder is introduced at an intermediate stage between the initial supply of the fibers to the air laying unit and the final formation of the web. A first coarse distribution of the powder is effected in a compulsory manner, independently of the initial supply of fiber material while the final distribution of powder is effected by means of the same air flows which cause the final distribution of the fiber material for forming the even web layer. In this manner the powder is effectively mixed evenly into the fiber material. | ||||||
| 206 | Forming belt for three-dimensional forming applications | US139461 | 1993-10-19 | US5466409A | 1995-11-14 | Mary E. Partridge; Timothy J. Blenke; Stephen R. Everson; Carl G. Schroth; Michael B. Venturino |
| A method and apparatus for forming a layer structure, such as an airlaid fibrous web, include a supplying mechanism for providing a stream of particulate material, such as fibers. Also included is a substantially endless, foraminous forming belt which has an appointed outward surface and a minimum thickness of at least about 3/16 inch. A selected contour is formed into the outward surface of the belt at selected locations, and the contour is distributed along a lengthwise machine-direction of the forming belt. The forming belt is configured to flex along a thickness direction thereof, and to recoverably bend and substantially straighten when traveling along a selected belt path circuit. A conveying mechanism moves the forming belt past the supplying mechanism along a forming path section of the belt circuit which is substantially straight, and moves the forming belt along a return path section of the belt circuit which includes curved portions therein. A vacuum mechanism draws a flow of air through the thickness of the forming belt to lay the particulate material onto the forming belt to form a layer structure, such as a web, having a top surface and a belt-side surface thereon. The web is thereby produced with a selected non-uniform thickness contour which is formed along the belt-side surface of the fibrous web. A driving mechanism moves the forming belt along the machine-direction at a selected speed, and a transporting mechanism removes the contoured web from the forming belt. | ||||||
| 207 | High consistency sheet former | US707429 | 1991-05-28 | US5160584A | 1992-11-03 | Borje Fredriksson |
| A papermaking machine is constructed as a barrier former in which a fiber slurry is received and placed in turbulence on one side of the screen plate for fluidizing the slurry and distributed through the screen plate onto a collecting wire, under tension, for immediately starting dewatering of a web formed in a wedge-shaped forming zone between the screen plate and the wire. | ||||||
| 208 | Device for achieving uniform distribution of airborne fibres, e.g. cellulose-fibres | US679001 | 1991-05-02 | US5147155A | 1992-09-15 | Kjell Hansen |
| A device for achieving uniform distribution of airborne fibres, for instance cellulose-fibres, in the outlet of a conduit intended for the air-transport of fibres, the device being placed in the outlet (10) of the conduit. In accordance with the invention, the device includes a plurality of mutually similar, concentrically arranged circular rotors (1) and a plurality of semi-circular stators (6) which are disposed between the rotors on the outlet side of the device. | ||||||
| 209 | Method of making a non-woven fiber web using a multi-headed ductless webber | US220293 | 1988-07-18 | US4904439A | 1990-02-27 | Allan P. Farrington; Gerald M. Marshall |
| A lickerin and feed mechanism create a supply of individual fibers which follow the rotation of the lickerin. These fibers are deflected from the lickerin in the form of a stream by means of a plate arranged parallel to the lickerin. A conveying screen intercepts the stream of fibers and accumulates them into a web without the use of a high velocity stream of air to doff the fibers from the lickerin or to capture fibers on the conveyor. Further, the housing for the apparatus is opened so that there are no seals to compress the web after it is produced. Multiple lickerins and feed mechanisms may be spaced along the conveying screen to create multiple-layer or blended products. The feed mechanisms may include devices for spraying particulate material on previously formed layers or blending it with fibers as a layer is formed. | ||||||
| 210 | Multi-headed ductless webber | US75702 | 1987-07-20 | US4795335A | 1989-01-03 | Allan P. Farrington; Gerald M. Marshall |
| A lickerin and feed mechanism create a supply of individual fibers which follow the rotation of the lickerin. These fibers are deflected from the lickerin in the form of a stream by means of a plate arranged parallel to the lickerin. A conveying screen intercepts the stream of fibers and accumulates them into a web without the use of a high velocity stream of air to doff the fibers from the lickerin or to capture fibers on the conveyor. Further, the housing for the apparatus is opened so that there are no seals to compress the web after it is produced. Multiple lickerins and feed mechanisms may be spaced along the conveying screen to create multiple-layer or blended products. The feed mechanism may include devices for spraying particulate material on previously formed layers or blending it with fibers as a layer is formed. | ||||||
| 211 | Eductor airforming apparatus | US818568 | 1986-01-13 | US4701294A | 1987-10-20 | Fred R. Radwanski; Jark C. Lau; James L. Post |
| The present invention provides an improved apparatus and method for forming a fibrous web. In accordance with the invention, a distributor housing delimits a fiberizing zone, and a delivery mechanism supplies a fiberizable material into the fiberizing zone. A moveable striking mechanism located in the fiberizing zone contacts the fiberizable material to initially separate the material into individual fibers. A discharging mechanism exits the fibers from the fiberizing zone into a web forming zone and toward a foraminous web forming layer. A gas delivering mechanism forces a stream of gas into the fiberizing zone to entrain the fibers therein and to eject a moving stream of the gas and fibers through the discharging mechanism into the web forming zone. The gas-fiber stream moves at a velocity sufficient to draw an induced supplementary gas flow past the discharging mechanism and toward the foraminous forming layer. A steering mechanism located in the web forming zone selectively guides the induced supplemental gas flow to direct the fibers toward selected areas of the foraminous forming layer. | ||||||
| 212 | Apparatus and process for forming a laid fibrous web | US807381 | 1985-12-10 | US4666647A | 1987-05-19 | Kenneth M. Enloe; Timothy L. Wehman |
| Apparatus and process for forming a laid fibrous article includes a foraminous forming surface for depositing thereon of fibers under the influence of a pressure differential imposed on the surface, wherein the improvement comprises the provision of a concavely contoured portion of the forming surface to yield a non-stepwise gradation in basis weight of the laid fibrous article. The concavely contoured surface portion is bounded by walls defining angles of from about 45.degree. to 68.degree., whereby the laid fibrous article is readily removable from the forming surface, which may comprise the cylindrical surface of a rotating drum. | ||||||
| 213 | Board making apparatus | US18716162 | 1962-04-11 | US3136684A | 1964-06-09 | ARTHUR COOPER |
| 214 | Method of producing hardboard in prdetermined shapes and a mat used in such method | US1634660 | 1960-03-21 | US3120466A | 1964-02-04 | CARL BOJANOWSKI |
| 215 | Composition board | US67648157 | 1957-08-06 | US3026242A | 1962-03-20 | ROBERT EMERY JOHN; MORROW JR ROBERT |
| 216 | Artificial board | US52031955 | 1955-07-06 | US2918398A | 1959-12-22 | MALONE DORLAND RODGER; MENUHIN YAN MAXWELL; HESLOP ELLIOTT G |
| 217 | Paper forming machine | US39237653 | 1953-11-16 | US2779254A | 1957-01-29 | LLOYD HORNBOSTEL; NEESE ALONZO A |
| 218 | Positive pressure machine for forming continuous strips of fibrous materials | US26403551 | 1951-12-29 | US2753766A | 1956-07-10 | SIMPSON ALVAN D |
| 219 | Heating system for composite paperboard machines | US32640140 | 1940-03-28 | US2341335A | 1944-02-08 | SIMMONS NOAH M |
| 220 | Paper | US63990732 | 1932-10-27 | US2077016A | 1937-04-13 | SCHACHT ELMER C |
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