Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1994-03-30
1995-12-19
Cannon, James C.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
191455, 19305, 156 624, 1563082, 264112, 264116, 264122, 264126, 428286, 428287, 428296, B32B 3106, B32B 3126, D04H 154, D04H 170
Patent
active
054767113
ABSTRACT:
A fiber blending system includes an apparatus and method of forming a mat of cellulosic fibers and synthetic fibers, as well as a mat thereby formed. The method includes the steps of fiberizing cellulosic material into cellulosic fibers in a fiberizer, volumetrically metering a metered amount of synthetic fibers, and injecting the metered amount of synthetic fibers into the cellulosic fibers. The cellulosic fibers are blended with the metered amount of synthetic fibers in a blending chamber to form a fiber blend. The fiber blend is dispersed through a fiber disperser having apertures of a preselected size and shape to provide a dispersed fiber blend. A third type of fiber may also be mixed with the dispersed fiber blend. The dispersed fiber blend is collected as a mat on a fiber collector to provide a mat of blended cellulosic and synthetic fibers. The mat may be thermobonded by a thermobonder and sandwiched between a facing sheet and a backing sheet. By varying the aperture preselection, as well as the size and type of fibers, a bonded mat having desired mat characteristics is formed.
REFERENCES:
patent: 731764 (1903-06-01), Fordyce
patent: 2152901 (1939-04-01), Manning
patent: 2543101 (1951-02-01), Francis, Jr.
patent: 2757150 (1956-07-01), Heritage
patent: 2940135 (1960-06-01), Heritage
patent: 2953187 (1960-09-01), Francis
patent: 3010161 (1961-11-01), Duvall
patent: 3016582 (1962-01-01), Joa
patent: 3035219 (1963-07-01), Cumbers
patent: 3136649 (1964-06-01), Keahey, Jr.
patent: 3973291 (1976-08-01), Kolbach
patent: 4129132 (1978-12-01), Butterworth et al.
patent: 4241881 (1980-12-01), Laumer
patent: 4315347 (1982-02-01), Austin et al.
patent: 4366111 (1982-12-01), Dinius et al.
patent: 4382758 (1983-05-01), Nopper et al.
patent: 4425126 (1984-01-01), Butterworth et al.
patent: 4495119 (1985-01-01), Chung
patent: 4784892 (1988-11-01), Storey et al.
patent: 4813948 (1989-03-01), Insley
patent: 4900377 (1990-02-01), Redford et al.
Dan Web Former System shown on Appendix "A" Figures 1, 2 and 3.
M & J Web Former System shown on Appendix "A" Figure 4.
International Search Report, PCT/US91/07229.
Gaddis Paul G.
Hebbard Carl
Perdelwitz, Jr. Lee E.
Cannon James C.
Weyerhaeuser Company
LandOfFree
Fiber blending system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiber blending system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber blending system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-991057