Collection and deposition of chopped fibrous strands for formati

Details Collection and deposition of chopped fibrous strands for formati Collection and deposition of chopped fibrous strands for formati

1996-05-03

1998-08-18

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With liberating or forming of particles

264121, 264128, 425 821, 425 831, C03B 3716, D01G 104

Patent

active

057955174

ABSTRACT:
An air cannon (100), formed by associating an inlet cone (116), an air amplifier (104) and an outlet cone (124) with one another, receives chopped fibers and forcefully deposits the chopped fibers on a collection surface (102) or web moving beyond an outlet end (126) of the outlet cone (124). A binder is applied to the resulting mat (172) of chopped fibers, the binder is activated by the application of energy with the resulting treated mat (182) being compacted, cooled and rolled up to form a chopped strand mat package (194). For wide mats, one or more banks (130) of air cannons (100) extend across the moving collection web. The air cannons (100) of each bank (130) are alternately directed up-line and down-line of the web to reduce interference between the air cannons (100) by means of L-shaped support rods (136) which have generally horizontal and generally vertical legs (136H, 136V) which are separated from one another by acute and obtuse angles (140, 142) for up-line and down-line direction, respectively. The air cannons (100) can also be individually adjusted to vary the aimed direction of the air cannons (100) across the web by rotation of the generally horizontal legs (136H) of the L-shaped support rods (136). The air cannons (100) forcefully direct chopped fibers to the web to overcome air turbulence within a forming hood (170) and forces due to static electricity.

REFERENCES:
patent: 2774630 (1956-12-01), Henry et al.
patent: 3939532 (1976-02-01), Wiegand
patent: 4060355 (1977-11-01), Walz et al.
patent: 4140450 (1979-02-01), Pfeifer et al.
patent: 4253610 (1981-03-01), Larkin
patent: 4300931 (1981-11-01), Phillips
patent: 4337074 (1982-06-01), Muschelknautz et al.
patent: 4390336 (1983-06-01), Ziegler
patent: 4419117 (1983-12-01), Muschelknautz et al.
patent: 4466819 (1984-08-01), Dunn
patent: 4496384 (1985-01-01), Lin
patent: 4557637 (1985-12-01), Barclay et al.
patent: 4600423 (1986-07-01), Stotler et al.
patent: 4601741 (1986-07-01), Stotler et al.
patent: 5093059 (1992-03-01), Nathoo et al.
patent: 5274892 (1994-01-01), Strahm
patent: 5368623 (1994-11-01), Hirschmann et al.
patent: 5402938 (1995-04-01), Sweeney
patent: 5407135 (1995-04-01), Jeffs

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