公开(公告)号：US3815296A

公开(公告)日：1974-06-11

申请号：US32416073

申请日：1973-01-16

Applicant: STANRAY CORP

Inventor： CRUTCHER C

IPC: B21D39/02 ,  B23K9/00 ,  B61D17/12

CPC classification number: B61D17/12 ,  B21D39/02 ,  B23K9/0035

Abstract: A galvanized roof structure for application to a freight car by welding and having a plurality of roof sections joined by clinched seams formed by interlocking hook flanges. The seam is sealed by a suitable sealant. A method is disclosed wherein the sealant is applied prior to tightly clinching the seam.

Abstract translation: 一种用于通过焊接应用于货车的镀锌屋顶结构，并且具有通过互锁的钩形凸缘形成的紧固接缝连接的多个屋顶部分。 接缝由合适的密封剂密封。