公开(公告)号：US3462330A

公开(公告)日：1969-08-19

申请号：US3462330D

申请日：1965-12-09

Applicant: WOODALL INDUSTRIES INC

Inventor： GREIG JAMES W ,  ANDERSON DAVID P

IPC: B29C65/00 ,  B29C69/00 ,  B29D22/00 ,  B32B3/12 ,  B32B37/00 ,  B31D3/02 ,  B29C17/04

CPC classification number: B32B37/00 ,  B29C51/267 ,  B29C65/02 ,  B29C66/1122 ,  B29C66/133 ,  B29C66/438 ,  B29D22/00 ,  B29K2101/12 ,  B29L2024/003 ,  B32B3/12 ,  Y10T156/1003 ,  Y10T156/1025 ,  Y10T156/108 ,  Y10T428/24149 ,  Y10T428/24562 ,  Y10T428/24612 ,  Y10T428/24661 ,  Y10T428/24702

公开(公告)号：US3589972A

公开(公告)日：1971-06-29

申请号：US3589972D

申请日：1969-06-16

Applicant: WOODALL INDUSTRIES INC

Inventor： GREIG JAMES W ,  ANDERSON DAVID P

IPC: E04C2/34 ,  B32B3/12

CPC classification number: E04C2/3405 ,  E04C2002/3455 ,  E04C2002/3472 ,  Y10T428/24149

Abstract: A HOLLOW STRUCTURE HAVING AN INTEGRAL HOLLOW PLASTIC SKIN ENCLOSING A CORE MEMBER. THE PLASTIC SKIN HAS AN INTEGRAL PERIPHERAL FLANGE FREE OF MECHANICAL STRESSES, AND THE CORE MEMBER HAS A PERIPHERAL EDGE RECEIVED WITHIN THE FLANGE OF THE SKIN. THE CORE MEMBER IN ONE EMBODIMENT IS PLASTIC, FORMING AN INTEGRAL FLANGE, AND PORTIONS OF THE CORE ARE DISPLACED AND FUSED TO THE SKIN BETWEEN THE FLANGES.