Static structures (e.g. – buildings) – With adjunctive means for assembly or disassembly – Structure includes tool or opening to provide access for a...
Patent
1989-03-08
1991-01-29
Murtagh, John E.
Static structures (e.g., buildings)
With adjunctive means for assembly or disassembly
Structure includes tool or opening to provide access for a...
52656, 403401, A47G 110
Patent
active
049877097
ABSTRACT:
A frame construction suitable for sash and frame constructions, including incorporation as a heavy duty construction for a rolling or sliding (patio) door, is provided with corner reinforcement and securement members to hold bevelled frame members in mutually secured relation. The preferred extruded frame section, being generally of aluminum, has an enclosed rectangular or other hollow, shaped profile between the opposed side flange members of the section. A symmetrical shaped metal angle piece or pieces is driven within the hollow core portion of the two hollow profile sections being joined. The angle pieces have resilient, reversed end portions with sharp edged terminations, that slide freely on being entered within a respective section, due to the resilience of the angle pieces, but lock into engaged relation on attempted withdrawal, due to the reversed attitude of the resilient end portions and their associated sharp edges, to secure the sections against disassembly. The use of duplex angle pieces imparts enhanced flexural stiffness to the joints. Provision is made to enable disassembly of the joints. When plastic frames are thus joined, angle pieces of organic plastic may be used, being adhered in place by way of cement, or by solvent or sonic welding, for a permanent joint.
REFERENCES:
patent: 3782054 (1974-01-01), Goss
patent: 4348127 (1982-09-01), Hays
patent: 4453855 (1984-06-01), Richter
patent: 4820077 (1989-04-01), Sawanda
Murtagh John E.
Repla Limited
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