US 12,214,557 B2
Weldable connecting element for connecting or joining thermoplastic line elements, and a welding assembly and a method for producing a welded connection
Albert Lueghamer, Sierning (AT); and Gerald Severa, Bad Hall (AT)
Assigned to agru Kunststofftechnik Gesellschaft m.b.H., Bad Hall (AT)
Appl. No. 17/442,496
Filed by agru Kunststofftechnik Gesellschaft m.b.H., Bad Hall (AT)
PCT Filed Mar. 25, 2019, PCT No. PCT/AT2019/060101
§ 371(c)(1), (2) Date Sep. 23, 2021,
PCT Pub. No. WO2019/136508, PCT Pub. Date Jul. 18, 2019.
Prior Publication US 2022/0152941 A1, May 19, 2022
Int. Cl. B29C 65/34 (2006.01); B29C 65/00 (2006.01); B29K 101/12 (2006.01); B29L 23/00 (2006.01); F16L 47/03 (2006.01)
CPC B29C 65/3468 (2013.01) [B29C 65/3424 (2013.01); B29C 66/9672 (2013.01); B29C 66/97 (2013.01); F16L 47/03 (2013.01); B29K 2101/12 (2013.01); B29L 2023/22 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A weldable connecting element for connecting or joining thermoplastic line elements, comprising:
a thermoplastic body;
at least one heating element, which is embedded in the body, wherein the heating element serves to generate heat in a welding area for welding the body to the at least one line element; and,
a joining control configured to prohibit the start of the welding operation and/or to interrupt the welding operation if the body is not correctly joined with the line element;
wherein the heating element is configured in the form of a resistance heating wire; and
wherein the joining control comprises an interruption in the resistance heating wire.