Weatherseal manufacture

Details Weatherseal manufacture Weatherseal manufacture

E - Fixed Constructions

06

B

108/57

E06B 7/22 (2006.01)

Patent

CA 1073748

ABSTRACT OF THE DISCLOSURE A weatherseal is made by preparing a long, thin strip of pile material and cross-head extruding a resin base having a relatively thick, generally flat support portion formed on the back of the pile strip and a relatively thin portion U-shaped in cross section and joined to opposite side edge regions of one face surface of the support portion while arching over the pile strip. While the resin material is still plastic, a substantially lower pressure is produced outside the U-shaped portion than inside this portion to expand this portion away from the support portion and reduce the thickness of the wall of the U-shaped portion. The resin material is set with the U-shaped portion expanded over the pile strip. Finally each side of the U-shaped portion is cut to leave a pair of thin, spaced-apart resilient fins extending away from the support portion on opposite sides of the pile strip.

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