EP 3842162 A1 20210630 - ENVIRONMENTALLY FRIENDLY STRAW AND MANUFACTURING METHOD THEREOF
Title (en)
ENVIRONMENTALLY FRIENDLY STRAW AND MANUFACTURING METHOD THEREOF
Title (de)
UMWELTFREUNDLICHER STROHHALM UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
PAILLE ÉCOLOGIQUE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
EP 19219717 A 20191226
Abstract (en)
The invention teaches an environmentally friendly straw and its manufacturing method. The straw includes a tubular body (1) having a through channel (12) inside connecting two openings (11) respectively at two ends of the tubular body (1), an outer layer (14) surrounding the tubular body (1) between the two openings (11) formed by a leveling machine (3), an inner layer (13), as an inner wall of the tubular body (1), surrounding the channel (12) formed by a honing machine (2). The straw is manufactured by leveling the tubular body (1), and honing the channel (12) by a honing machine (2). As such, a smooth inner layer (13) between the channel (12) and the tubular body (1) is achieved so that the straw is convenient to clean and use.
IPC 8 full level
B21C 37/30 (2006.01); A47G 21/18 (2006.01); B21D 3/10 (2006.01); B21D 3/16 (2006.01); B24B 33/02 (2006.01)
CPC (source: EP)
B21D 3/10 (2013.01); B21D 3/16 (2013.01); B24B 33/02 (2013.01); A47G 2400/02 (2013.01)
Citation (search report)
- [XY] CN 209360306 U 20190910 - YE JIACHENG
- [Y] GB 2026730 A 19800206 - GALDABINI R
- [Y] DE 2812463 A1 19790927 - DUNKES MASCHINENBAU KG
- [Y] DE 719624 C 19420413 - SCHLOEMANN AG
- [A] CN 101829708 B 20110831 - CHINA CONSTR 7TH ENG BUREAU THE 2ND CO LTD
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3842162 A1 20210630; EP 3842162 B1 20230802; EP 3842162 C0 20230802
DOCDB simple family (application)
EP 19219717 A 20191226