Production of shaped filamentary structures

Details Production of shaped filamentary structures Production of shaped filamentary structures

1996-06-28

1998-04-14

Weisberger, Richard

Metal working

Method of mechanical manufacture

Shaping fiber or fibered material

28107, 28114, 28115, 29411, 29412, 29521, B23P 1700

Patent

active

057378215

ABSTRACT:
A method of producing a shaped fibrous fabric structure is similar to that described in the parent application, in that a continuous filament sheet is subjected to a needle punching action, segments are cut from the sheet and these segments are assembled to form an annulus, and then subjected to rotary motion under a reciprocating needling head and continuing to add segments to build up a stack of layers while at the same time continuing the needling action, and lowering the base of the stack relatively to the needling head. However, in a final step, one or more layers of segments are added to the top of the stack, and these are needled into the stack without lowering the stack. Furthermore, these additional layers are preferably made entirely of stapled fibers. Some or all of the layers of segments below the final layers may themselves be made of duplex material comprising continuous filament on which is laid a web of stapled fibers before the duplex material is produced by needling the stapled web to the continuous filaments.

REFERENCES:
patent: 2132530 (1938-10-01), Greiser
patent: 2314162 (1943-03-01), Reinhardt
patent: 2930100 (1960-03-01), Rust
patent: 3010178 (1961-11-01), Rust
patent: 3090101 (1963-05-01), Chagnon et al.
patent: 3250493 (1966-05-01), Burkley et al.
patent: 3391436 (1968-07-01), Fehrer
patent: 3508307 (1970-04-01), Dilo
patent: 3540096 (1970-11-01), Porta
patent: 3555638 (1971-01-01), O'Byrne
patent: 3657061 (1972-04-01), Carlson et al.
patent: 3673024 (1972-06-01), Eriksson
patent: 3730320 (1973-05-01), Freeder et al.
patent: 3772115 (1973-11-01), Carlson et al.
patent: 3909891 (1975-10-01), Dilo
patent: 3909893 (1975-10-01), Wilde
patent: 3936552 (1976-02-01), Krupp et al.
patent: 3971669 (1976-07-01), Wrzesien et al.
patent: 3994762 (1976-11-01), Wrzesien et al.
patent: 4085486 (1978-04-01), Dilo
patent: 4097983 (1978-07-01), Cole
patent: 4284680 (1981-08-01), Awano et al.
patent: 4490201 (1984-12-01), Leeds
patent: 4621662 (1986-11-01), Olry
patent: 4790052 (1988-12-01), Olry

Affiliated with

Also associated with

Rating

Production of shaped filamentary structures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Production of shaped filamentary structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of shaped filamentary structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-625936