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:
Mar. 16, 1993
Filed:
Feb. 07, 1992
Holger M Thum, Brunswick, DE;
Volkswagen AG, Wolfsburg, DE;
Abstract
A structural part, such as a kinetic energy-absorbing beam for vehicle construction, formed of a hollow metal member produced from profiled members connected by application of heat and a prefabricated reinforcing core of light-weight material is produced by first providing the core with a shell of heat-foamable material, then completing the hollow member by welding, and finally subjecting the assembly to an immersion-coating operation with heat. The hollow member has local inward projections for positioning of the core, leaving open spaces which provide thermal insulation during the welding process and which are permeated by hot coating material during the immersion-coating, so that the shell is foamed and a positive, force-transmitting connection is provided between the core and the hollow member.