Corner locking and associated pivot means for extruded plastic s

Details Corner locking and associated pivot means for extruded plastic s Corner locking and associated pivot means for extruded plastic s

1984-04-20

1986-04-01

Kannan, Philip C.

Movable or removable closures

Mounted for optional movements

Edgewise retractable bearing acting between closure and...

49180, 49450, E05D 1522

Patent

active

045789037

ABSTRACT:
A window sash of a double-hung window assembly has framing members formed of extruded plastic material of one configuration providing a hollow formation extending therethrough and opening to the ends thereof. Support and connector members are installed internally of the framing members to form and rigidify the corner miter-joints therebetween. The support and connector members include internal latch means for maintaining the sash vertical and internal pivot means for pivoting the sash inwardly when the latch means is released.

REFERENCES:
patent: 2605870 (1952-08-01), Hansen
patent: 3377747 (1968-04-01), Donkin
patent: 4087941 (1978-05-01), Wolfe
patent: 4144674 (1979-03-01), Dovman
patent: 4324072 (1982-04-01), Sterner, Jr.
patent: 4475311 (1984-10-01), Gibson

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