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US 4,018,022 AGranted
Insulated frame assembly
AssigneeContinental Aluminum Products Company
InventorFrederick M. Fink
Life of this patent
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AssigneeContinental Aluminum Products Company
InventorFrederick M. Fink
Estimating the term…
An insulative frame-strip assembly comprises metallic inner and outer side members splined together by a rigidly-acting insulating or frost-barrier splicing strip. These three main parts are extrusions assembled by transverse movements, instead of being threaded end for end or requiring molding of the splicing strip in situ. Inadvertent disassembly in handling is prevented by locking made effective by a pressed-in locking strip. The locking may use interlocking formations or only friction, and either may be aided by torsional pressure. The locking strip is inserted through the pane-receiving channel so that inserting the pane therein prevents removal of the locking strip and adds to its locking forces. Hooked webs on the two metal side members extend transversely in slightly spaced parallel planes, the end of each being a flange extending toward the other web and snugly engaging the spline strip to use its compressive strength.
A frame strip assembly comprising laterally spaced side walls forming a channel between parallel edge zones thereof to receive a member to be framed, and interlocking means positioned to leave said channel free and including webs extending inwardly relative to the side walls, said webs including closely spaced overlapped portions, narrow flanges on the ends of the overlapped web portions, each flange projecting toward the web portion on which the other flange is formed and presenting a steep locking shoulder approximately opposing the shoulder of the other flange, a rigid spline strip in said space grooved from opposite sides to receive said flanges, a gap between the end of the one of the webs closest to said channel and a portion rigid with the side wall on which the other web is formed and which, when unfilled, permits pivoting of the said side walls toward and away from each other to facilitate relative transverse movement of the parts into an assembly from fully separated positions to a position for interlocking of the said spline strip with the overlapped web portions and flanges, and a locking strip in said gap dimensioned to hold said walls spread apart to the limit permitted by the spline strip and of sufficient compressive strength to lock said assembly while said channel remains empty.
A frame strip assembly comprising laterally spaced side walls forming a channel between parallel edge zones thereof to receive a member to be framed, and interlocking means positioned to leave said channel free and including webs extending inwardly relative to the side walls, said webs including closely spaced overlapped portions, narrow flanges on the ends of the overlapped web portions, each flange projecting toward the web portion on which the other flange is formed and presenting a steep locking shoulder approximately opposing the shoulder of the other flange, a substantially noncompressible spline strip in said space grooved from opposite sides to receive said flanges and hold them spaced apart, a gap between the end of the one of the webs closest to said channel and a face portion rigid with the side wall on which the other web is formed and which, when unfilled, permits freedom of relative movement of said side walls to facilitate relative transverse movement of the parts into an assembly from fully separated positions to a position with the overlapped web portions and flanges closed against the spline strip, and a locking strip in said gap dimensioned to hold said walls spread apart to the limit permitted by the spline strip and of sufficient compressive strength to lock said assembly while said channel remains empty.
A frame strip assembly comprising laterally spaced side walls forming a channel between parallel edge zones thereof to receive a member to be framed, and interlocking means positioned to leave said channel free and including webs extending inwardly relative to the side walls, said webs including closely spaced overlapped portions, narrow flanges on the ends of the overlapped web portions, each flange projecting toward the web portion on which the other flange is formed and presenting a steep locking shoulder approximately opposing the shoulder of the other flange, a substantially noncompressible spline strip in said space grooved from opposite sides to receive said flanges and hold them spaced apart, a gap between the end of the one of the webs closest to said channel and a face portion rigid with the side wall on which the other web is formed;
A set of two elongate side members with hook-shaped webs and an elongate complementally shaped splicing strip, jointly adapted to form, with an elongate locking strip, an insulated frame strip assembly by movements of these parts transversely of their lengths into engagement with one another along their lengths, to form an assembly having a U-shaped channel between the side members to receive a unit to be framed and in which the spreading force exerted between the side members, when said unit is inserted in said channel, is resisted by compression forces on the splicing strip, said assembly being characterized by:
Dependencies are inferred from the claim text.