The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 1981
Filed:
Apr. 09, 1979
Applicant:
Inventor:
Germain Belanger, St. Germain de Grantham, CA;
Assignee:
Bombardier Limited, Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ; E04C / ; E04C / ;
U.S. Cl.
CPC ...
523092 ; 49503 ; 5230915 ; 52809 ; 52823 ; 428438 ; 428481 ; 428537 ;
Abstract
A structural panel such as a door for a railway freight car has a lightweight core formed by two sheets of low density material e.g. balsa wood. Each sheet has bonded to one side a series of layers of glass fibre, and the sheets are bonded together in confronting relationship to form the panel. The glass fibre layers extend around the edges of the panel which edges are further reinforced by a channel-shaped plastics edging member.