Frank D Clay

US Patent:

39854833, Oct 12, 1976

Filed:

Jan 31, 1975

Appl. No.:

5/545953

Inventors:

Frank M. Clay - Newark OH
Leland G. Moran - Newark OH
Russell R. Lawyer - Newark OH

Assignee:

Owens-Corning Fiberglas Corporation - Toledo OH

International Classification:

B29D 2704

US Classification:

425112

Abstract:

The apparatus includes a stationary hollow mandrel supported at one end, a pair of forming shoes over which strips of material are respectively pulled longitudinally of the mandrel to provide a cylindrical inner liner surrounding the mandrel and a cylindrical outer jacket surrounding the inner liner in spaced relationship thereto, a conduit having an outlet end portion disposed within the outer jacket above the inner liner, supply means for supplying foamable hardenable liquid material to an inlet end portion of the conduit, additional supply means for separately supplying a fast acting catalyst to the foamable material in the conduit, means for reciprocating the outlet end portion of the conduit transversely over the inner liner, conveyor-mold means confining the outer jacket as the foamable material foams and cures, rotatable tire means for pulling the insulation formed by the outer jacket, the cured foam, and the inner liner off the mandrel longitudinally thereof, a traveling saw for cutting the insulation into predetermined lengths, a slitting saw for slitting the tubular insulation longitudinally, and an infrared sensor for controlling the speed of two motors respectively driving the conveyor-mold means and the rotatable tire means in accordance with the amount of heat generated by the foamable hardenable liquid material.

US Patent:

40767817, Feb 28, 1978

Filed:

Jun 23, 1976

Appl. No.:

5/699021

Inventors:

Frank M. Clay - Newark OH
Leland G. Moran - Newark OH
Russell R. Lawyer - Newark OH

Assignee:

Owens-Corning Fiberglas Corporation - Toldeo OH

International Classification:

B29D 2300
B29D 2704

US Classification:

264 407

Abstract:

The method includes use of a stationary hollow mandrel supported at one end, a pair of forming shoes over which strips of material are respectively pulled longitudinally of the mandrel to provide a cylindrical inner liner surrounding the mandrel and a cylindrical outer jacket surrounding the inner liner in spaced relationship thereto, a conduit having an outlet end portion disposed within the outer jacket above the inner liner, supply means for supplying foamable hardenable exothermic reacting liquid material to an inlet end portion to the conduit, additional supply means for separately supplying a fast acting catalyst to the foamable material in the conduit, means for reciprocating the outlet end portion of the conduit transversely over the inner liner, conveyor-mold means confining the outer jacket as the foamable foams and cures, rotatable tire means for pulling the insulation formed by the outer jacket, the cured foam, and the inner liner off the mandrel longitudinally thereof, a traveling saw for cutting the insulation into predetermined lengths, a slitting saw for slitting the tubular insulation longitudinally, and an infrared sensor for controlling the speed of two motors respectively driving the conveyor-mold means and the rotatable tire means in accordance with the sensed temperature of the exothermic reaction of the foamable hardenable liquid material.