Title: Laminated floor manufacturing method

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.

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Inventors: Heimann, Fred G. (Mt. Clemens, MI, US)
Abbott, Richard (Dearborn, MI, US)

Application Number: 451440
Filing Date: 1974-03-15
Publication_date: 1976-01-20
Assignee: Fruehauf Corporation (Detroit, MI)
Primary Class(es): 156/79 156/166, 156/210, 156/216, 156/250, 156/324, 264/46.5, 264/261, 428/71, 428/117, 428/184, 428/319.3
Other Classes:
US Patent Ref:

1592824	Jul, 1926	Fairchild	156/210.
3090078	May, 1963	Ackles	264/46.
3242240	Mar, 1966	Tantlinger	264/46.
3666590	May, 1972	Susuki et al.	156/210.
3791912	Feb, 1974	Allard	161/161.
3792141	Feb, 1974	Offutt	156/79.

Other Refs:
Primary Examiner: Whitby, Edward G.
Assistant Examiner:
Attorney: Harness, Dickey & Pierce