WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2007008131) DEVICE AND METHOD FOR TRANSVERSE SEALING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/008131    International Application No.:    PCT/SE2006/000633
Publication Date: 18.01.2007 International Filing Date: 31.05.2006
IPC:
B29C 65/08 (2006.01), B65B 51/30 (2006.01)
Applicants: TETRA LAVAL HOLDINGS & FINANCE S.A. [CH/CH]; Av. Général-guisan 70, CH-1009 Pully (CH) (For All Designated States Except US).
SPECHT, Klaus [DE/DE]; (DE) (For US Only).
CAPASSO, Salvatore [IT/SE]; (SE) (For US Only).
LARSSON, Kenneth [SE/SE]; (SE) (For US Only)
Inventors: SPECHT, Klaus; (DE).
CAPASSO, Salvatore; (SE).
LARSSON, Kenneth; (SE)
Agent: RAHLENBECK, Åsa; AB TETRA PAK, Patent Department, Ruben Rausings Gata, S-221 86 Lund (SE)
Priority Data:
0501614-2 08.07.2005 SE
Title (EN) DEVICE AND METHOD FOR TRANSVERSE SEALING
(FR) DISPOSITIF ET PROCEDE POUR SCELLEMENT PAR JOINT A CHAUD TRANSVERSAL
Abstract: front page image
(EN)A device (10) and a method for transverse sealing of a tube (12) of thermoplastic coated packaging material are provided. The tube is formed by sealing of an overlapping joint (14) between two mutually opposing edge sections (26, 28) of a sheet of packaging material. The device comprises first and second opposing jaws (16, 18) having first and second main sealing surfaces (20, 22), respectively. The tube is arranged to be flat-laid and squeezed between these main sealing surfaces to heat the thermoplastic there between and obtain a transverse seal along a main sealing line (24) of the tube. The device is characterized in that it is arranged to penetrate the outer edge section (28) of the overlapping joint along the main sealing line prior to sealing to allow the first main sealing surface (20) to contact the inner edge section (26) of the overlapping joint.
(FR)Dispositif (10) et procédé pour scellement par joint à chaud transversal de tube (12) en matériau d'emballage à revêtement thermoplastique. On forme le tube par établissement de joint à recouvrement (14) entre deux bords mutuellement opposés (26, 28) d'une feuille de matériau d'emballage. Le dispositif comprend des première et seconde mâchoires opposées (16, 18) à première et seconde surfaces de scellement principales (20, 22), respectivement. Le tube est conçu pour être posé à plat et pressé entre ces surfaces, ce qui chauffe le matériau thermoplastique dans l'intervalle considéré et donne un joint à chaud transversal le long d'une ligne de scellement principale (24) du tube. Le dispositif pénètre le bord externe (28) du joint à recouvrement le long de la ligne de scellement principale avant le scellement, ce qui permet à la première surface de scellement principale (20) d'entrer en contact avec le bord interne (26) du joint à recouvrement.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)