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US3755028A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for manufacturing non-woven textile articles

Assignee: Curlator Corp
•
Filing: 1971-10-08
•
Granted: 1973-08-28
•
Expires: 1991-10-08
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Abstract

Abstract In this process various materials are fed into a condensing chamber between two rotary condensers to form a composite nonwoven product. Staple fibers may be formed into two separated mats from which the fibers are combed by lickerins into two separate air streams for delivery to the condensing chamber; and continuous filaments may be fed between the fibers to the condensers, and intermingled, in the nip between the condensers, with the staple fibers to form a non-woven and continuous filament composite; or a powdered binder may be fed into the condensing chamber to form a two-type non-woven and powderedbinder composite; or staple fibers may be fed by three separate air streams into the nip between the condensers to form a threetype non-woven product.

Inventors

  • 👤 D Wood

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 08:02
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/08

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 13 words
The method according to claim 1, wherein said different material comprises continuous filaments.
Claim 2
Dependent Claim 24 words
The method according to claim 2, wherein said continuous filaments are spun fibers selected from the group consisting of plastic fibers and glass fibers.
Claim 3
Dependent Claim 50 words
The method according to claim 1, wherein said different material is allowed to fall by gravity into said nip, and the condensers are so disposed that individual fibers delivered into the nip between the condensers are of sufficient length to extend across said nip from one condenser to the other.
Claim 4
Dependent Claim 26 words
The method according to claim 1 wherein said different material is a fibrous material, and the fibers carried by the two air streams are staple fibers.
Claim 5
Dependent Claim 22 words
The method according to claim 2, wherein the continuous filaments are coated with a tacky substance and then fed to the condensers.
Claim 6
Dependent Claim 46 words
The method according to claim 2, wherein some of the filaments are guided into the chamber into said nip to form warp threads in said web and other filaments are guided and laid down transversely of the first-named filaments to form weft threads in said web.
Claim 7
Independent Claim 157 words
The method of manufacturing a nonwoven textile web comprising preforming fibrous material into two separate feed mats, combing fibers from the two separate fiber mats by two separate lickerins rotating at high speed about separate axes, doffing centrifugal fibers from the lickerins by centrifugal force, due to the high speed rotation of the lickerins, and by two separate air streams flowing past the two lickerins, and conveying the fibers by the two separate spaced air streams into a common Enclosed chamber and into the nip between two oppositely rotating foraminous condensers so that the fibers of the two streams are intermingled and arranged in random manner, and simultaneously delivering to the condensers into said common chamber and into said nip and between the fibers a material different from the fibers which are carried by the two air streams, so that the condensers form between them a nonwoven random fiber web composed of at least two different materials.

References Cited (Backward Citations)

US2732885A Cited
US2897874A Cited
US3024150A Cited
US3030245A Cited
US3414444A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-27 1977-02-26 1977-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-27 1981-02-26 1981-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-27 1985-02-26 1985-08-28 $7700.00 Window Closed / Lapsed

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