US 11,667,421 B2
Sealing body
Sascha Bach, Dresden (DE); and Marcus Stein, Dresden (DE)
Assigned to WATTTRON GMBH, Freital (DE)
Appl. No. 16/334,621
Filed by WATTTRON GMBH, Freital (DE)
PCT Filed Sep. 21, 2017, PCT No. PCT/EP2017/073903
§ 371(c)(1), (2) Date Mar. 19, 2019,
PCT Pub. No. WO2018/055034, PCT Pub. Date Mar. 29, 2018.
Claims priority of application No. 102016117834.9 (DE), filed on Sep. 21, 2016.
Prior Publication US 2021/0276755 A1, Sep. 9, 2021
Int. Cl. B65B 51/22 (2006.01); B29C 65/18 (2006.01); B29C 65/22 (2006.01); B29C 65/30 (2006.01); B29C 65/36 (2006.01); B29C 65/78 (2006.01); B29C 65/00 (2006.01); B29L 31/00 (2006.01); B65B 51/10 (2006.01)
CPC B65B 51/227 (2013.01) [B29C 65/18 (2013.01); B29C 65/224 (2013.01); B29C 65/225 (2013.01); B29C 65/228 (2013.01); B29C 65/30 (2013.01); B29C 65/368 (2013.01); B29C 65/3656 (2013.01); B29C 65/3668 (2013.01); B29C 65/7847 (2013.01); B29C 66/221 (2013.01); B29C 66/232 (2013.01); B29C 66/3472 (2013.01); B29C 66/3494 (2013.01); B29C 66/43121 (2013.01); B29C 66/53461 (2013.01); B29C 66/72321 (2013.01); B29C 66/73921 (2013.01); B29C 66/8122 (2013.01); B29C 66/81811 (2013.01); B29C 66/81831 (2013.01); B29C 66/81871 (2013.01); B29C 66/83221 (2013.01); B29C 66/91213 (2013.01); B29C 66/91231 (2013.01); B29C 66/91421 (2013.01); B29C 66/91423 (2013.01); B29L 2031/7128 (2013.01); B65B 2051/105 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sealing body for thermally bonding thermoplastic materials, comprising a heating element which has a carrier substrate with a front side and a rear side, which consists of an electrically non-conductive ceramic material, on the front side of which, at least two heat conductors are arranged, and are electrically contacted from the rear side of the carrier substrate through the carrier substrate by respective electrical vertical interconnect accesses (VIAs) through the carrier substrate, wherein the at least two heat conductors are thick-film conductors which are independently actuatable from one another, and the electrical VIAs are electrical contacts of the at least two heat conductors; and
wherein:
the at least two heat conductors are operable to receive electric energy from a power supply conducted through the respective VIAs;
the at least two heat conductors are operable to convert the electric energy to heat energy capable of thermally bonding plastic materials; and
the electrical VIAs and the at least two heat conductors are formed of a same electrically conductive ceramic material.