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:
Jan. 20, 1976
Filed:
Mar. 15, 1974
Fred G Heimann, Mt. Clemens, MI (US);
Richard Abbott, Dearborn, MI (US);
Fruehauf Corporation, Detroit, MI (US);
Abstract
A method of manufacturing foam filled laminated planks which includes continuous means for forming and feeding a longitudinally corrugated plastic reinforcing core between, and bonding it to, top and bottom cover sheet laminae consisting of roll-fed strips of resin-impregnated fabric. The corrugations of the core define channels extending lengthwise through the assembly consisting of the core and cover sheets, and lengths are cut off and fed laterally therefrom to a position wherein each channel is aligned with an elongated lance, and then fed longitudinally into overfitted relation on the lances. The outer ends of the channels are closed, and foaming plastic is fed into the channels through the lances. The planks are then moved off of the lances toward a desired delivery position.