Static structures (e.g. – buildings) – Frangible section or means – Removable corner or internal section
Patent
1994-10-11
1995-12-26
Friedman, Carl D.
Static structures (e.g., buildings)
Frangible section or means
Removable corner or internal section
522881, 52468, 52471, 525731, E04B 200
Patent
active
054776430
ABSTRACT:
A panel edge-finishing accessory which is useful as an expansion joint between two drywall panels comprises three integrally joined, elongate strips, namely two relatively rigid, lateral strips and a relatively pliable, middle strip, which may be respectively coextruded from polyvinyl chloride having different durometer hardnesses. Each lateral strip has a broad portion with a distal edge and a proximal edge, a rib with a distal edge and a proximal edge merging with the proximal edge of such lateral strip, and a tear-away flange joined integrally to the distal edge of the rib at a preferentially weakened juncture. The middle strip has a zig-zag profile and is joined integrally at each of its opposite edges to the distal edge of the rib of one of the lateral strips. The ribs extend so as to be generally normal to the lateral strips and are used for guiding a tool used to apply drywall-finishing material over the lateral strips. The tear-away flanges are used for protecting the middle strip from drywall-finishing material applied over the lateral strips by a tool guided by the ribs and are intended to be torn away, along the preferentially weakened junctures, after drywall-finishing material thus has been applied. Each lateral strip has a locating flange extending oppositely from the proximal edge of such lateral strip.
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Catalog, Trim-Tex, Inc., Apr. 1993--generally and under "Adjustable Inside Corner Bead" on p. 5, under New Magic Corner, on p. 5, and under Hideaway Expansion Joint on p. 7.
Friedman Carl D.
McTigue Aimee
Trim-Tex, Inc.
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