Invention Grant
- Patent Title: Machine and method for making a continuous tubular element with filling having a spacer and/or filter function
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Application No.: US17798371Application Date: 2021-02-24
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Publication No.: US12133548B2Publication Date: 2024-11-05
- Inventor: Ivan Eusepi , Nicola Baldanza , Marco Esposti , Gennaro Rizzo , Giuliano Gamberini
- Applicant: G.D S.P.A.
- Applicant Address: IT Bologna
- Assignee: G.D S.P.A.
- Current Assignee: G.D S.P.A.
- Current Assignee Address: IT Bologna
- Agency: SHUTTLEWORTH & INGERSOLL, P.L.C.
- Agent Timothy J. Klima
- Priority: IT102020000003952 20200226
- International Application: PCT/IB2021/051535 WO 20210224
- International Announcement: WO2021/171187 WO 20210902
- Main IPC: A24C5/46
- IPC: A24C5/46 ; A24C5/01 ; A24C5/18 ; A24C5/24 ; A24D3/02 ; B31C5/00

Abstract:
A machine for making a continuous tubular element with filling from web material, including first and second means for feeding respective continuous webs, a forming station configured to perform a folding and/or deformation of a first continuous web in a shaped configuration, and a wrapping station wherein the second continuous web is wound in a tubular shape around the first continuous shaped web to obtain the continuous tubular element. Upstream of the wrapping station there is a first gluing device configured to apply at least one longitudinal line of glue on at least one of the continuous webs in such a way as to define at least one gluing zone, said longitudinal line of glue being positioned in such a way as to coincide with a zone of superposing and contact between the two continuous webs feeding out of the wrapping station.
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