Hollow profile with a surface layer

Details Hollow profile with a surface layer Hollow profile with a surface layer

1988-03-16

1989-09-12

Dawson, Robert A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138137, 138138, 138151, 156165, 156201, 220450, 220453, 220461, 428 3691, 428114, 493297, B32B 108

Patent

active

048658910

ABSTRACT:
A surface layer is applied to an elongated, deformable hollow profile. The profile originally has at least one wall portion which is curved as seen in cross section. The profile is advanced to a device for applying the surface layer and pressed so as to deform the curved wall portion into a shape which, as seen in cross section, is substantially straight. The surface layer is applied to this wall portion while it is in the substantially straight shape, and the profile is then at least substantially returned to its original shape.

REFERENCES:
patent: 2044356 (1936-06-01), Keeran
patent: 2612910 (1952-10-01), Krupp
patent: 3094449 (1963-06-01), Sisson
patent: 3172571 (1965-03-01), Marchak
patent: 3485907 (1969-12-01), Quackenbush et al.
patent: 3551243 (1970-12-01), Schuur et al.
patent: 3600918 (1971-08-01), Lemelson
patent: 3686744 (1972-08-01), Mazuir et al.
patent: 4231832 (1980-11-01), Weikert

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