Invention Grant
- Patent Title: Web stretching device disposed between a carding device and a cross-lapper
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Application No.: US16348228Application Date: 2017-11-14
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Publication No.: US11885046B2Publication Date: 2024-01-30
- Inventor: Jean-Christophe Laune , Hugues Leroy , Frédéric Noelle
- Applicant: ANDRITZ ASSELIN THIBEAU
- Applicant Address: FR Elbeuf
- Assignee: Andritz Asselin Thibeau
- Current Assignee: Andritz Asselin Thibeau
- Current Assignee Address: FR Elbeuf
- Agency: Renner, Kenner, Greive, Bobak, Taylor & Weber
- Priority: FR 70710 2016.11.25 FR 71155 2017.10.31
- International Application: PCT/EP2017/079227 2017.11.14
- International Announcement: WO2018/095766A 2018.05.31
- Date entered country: 2019-05-08
- Main IPC: D01G15/46
- IPC: D01G15/46 ; D01G21/00 ; D01G23/08 ; D01G25/00 ; D04H1/74

Abstract:
Apparatus for forming a fibre mat, in particular a non-woven mat, comprising a fibre web-forming device, for example a card, a cross-tapper and a device for drafting the fibre web(s) disposed between the web forming device and the cross-lapper in order to draft the fibre web(s), in particular in a time-varying, specifically periodic manner, to thereby adjust a predetermined desired profile of the fibre mat leaving the cross-lapper, the web-forming device comprising at least one output belt (1, 2) for at least one web (5, 6), and preferably two output belts (1, 2) for two webs (5, 6), an upper and lower web respectively; wherein the cross-hipper has an input belt (7) for receiving the web(s) from the output belt(s) of the web forming device, characterised in that the arrangement is such that the path of the web, or of the at least one web, and preferably of the two, upper and lower, webs, between the output belt(s) of the web-forming device, in particular the card, and the input belt of the cross-lapper includes at least one inflection point (11, 12).
Public/Granted literature
- US20190271102A1 A WEB STRETCHING DEVICE DISPOSED BETWEEN A CARDING DEVICE AND A CROSS-LAPPER Public/Granted day:2019-09-05
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