Patent ID: 7597776
Filing Date: 2009-10-06
Classification: B29C,B29K,B29L

Abstract:
1. A sealing tool for a sealing machine, the tool comprising: a heat-conductive support plate having an inner face; a heat-conductive seal plate having an outer face bearing in surface contact on the support-plate inner face; means for heating the support plate directly for heating the seal plate through the support plate; a central attachment extending between the plates across the faces at a point location and substantially preventing relative movement of the plates parallel to the faces at the point location, the support plate being formed with two throughgoing bores of predetermined diameter opening at the inner face and spaced outward from the central attachment, the seal plate being formed with two threaded bores each aligned with a respective one of the outer bores; means for heating the support plate; two outer bolts each having respective elastic parts each compressed between a respective one of the heads and the respective outwardly directed surface of the support plate and pressing the faces together with a limited force such that the faces can slide parallel to each other at the outer bolts.