公开(公告)号：US3607554A

公开(公告)日：1971-09-21

申请号：US3607554D

申请日：1969-03-12

申请人： BONDIT CORP

发明人： HEFFERNAN WILLIAM R

IPC分类号： B29C65/04 ,  B29C65/50 ,  D06M23/18 ,  B29C24/00 ,  B29C27/04 ,  B32B31/04

CPC分类号： D06M23/18 ,  B29C65/04 ,  B29C65/4815 ,  B29C65/482 ,  B29C65/5042 ,  B29C65/5092 ,  B29C66/1122 ,  B29C66/43 ,  B29C66/729 ,  B29C66/8161 ,  B29C66/81881 ,  B29C66/8221 ,  B29C66/82265 ,  B29C66/83423 ,  B29C66/92611 ,  B29C66/929 ,  Y10T156/1715

摘要： Apparatus for joining layers of sheet material along a twodimensional contour by means of dry thermally active adhesive therebetween comprises belt means for moving the materials lengthwise in a predetermined first direction, radiofrequency means for heating the adhesive to cause it to liquefy or plasticize, first means for applying a releasable compressive pressure to the materials and the adhesive in the area to be joined, and pivot pin means for applying constant compressive pressure to an isolated point of the materials, thereby, upon the momentary release of the pressure applied by the first means, to allow the materials to be pivoted about the isolated point and to be joined along the contour.