Composite weatherstripping

Details Composite weatherstripping Composite weatherstripping

2005-04-12

2005-04-12

Juska, Cheryl A. (Department: 1771)

Stock material or miscellaneous articles

Pile or nap type surface or component

Particular shape or structure of pile

C428S092000, C428S093000, C428S095000, C049S475100, C049S489100, C049S490100

Reexamination Certificate

active

06878428

ABSTRACT:
Weatherstripping is provided having a backing which a composite portion is either integral with or adhered to for reducing stretch and shrinkage in the weatherstripping. The composite portion is composed of strand portion, preferably a plurality of strands, embedded in a matrix. The strand portion may be fibreglass and the matrix may be polypropylene. The composite portion is bonded to or integral with the weatherstripping backing along its length such that the strand portion is oriented linearly in the same direction as the backing. The strand portion has a higher tensile modulus than the backing and thus provides resistance to stretching induced by pull forces during installation. The strand portion also tends to resist shrinkage in the backing.

REFERENCES:
patent: 4090910 (1978-05-01), Metzler
patent: RE30359 (1980-08-01), Metzler
patent: 4242392 (1980-12-01), Yackiw
patent: 4305984 (1981-12-01), Boyce
patent: 4358497 (1982-11-01), Miska
patent: RE31403 (1983-10-01), Burrous
patent: 5906877 (1999-05-01), Popper et al.
patent: RE36372 (1999-11-01), Edwards et al.
patent: 6711858 (2004-03-01), Albanese et al.

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