Movable or removable closures – With means mounting closure for reciprocation – Revolving guide component; e.g. – roller or gear
Patent
1976-07-28
1977-08-30
Kannan, Philip C.
Movable or removable closures
With means mounting closure for reciprocation
Revolving guide component; e.g., roller or gear
16 96R, 52207, 160 90, E05D 1302
Patent
active
040445046
ABSTRACT:
In a dual sash window assembly having a pair of overlapping sashes mounted within an outer frame for relative horizontal movement, the outer frame has a stepped sill, with a pair of parallel spaced rails formed thereon as upward extensions from the risers of two of the steps. Mounted on the respective rails for rolling movement therealong, the sashes have bottom horizontal frame members carrying weathertight sealing strips arranged to make sliding engagement with the exterior surfaces of the respective risers of the sill. The sealing strips serve to make the window perfectly weathertight in spite of the presence of dust outlets formed by cutting away parts of the rails.
REFERENCES:
patent: 2897552 (1959-08-01), Kiefer
patent: 3324597 (1967-06-01), Rich
patent: 3442052 (1969-05-01), Levine
patent: 3984954 (1976-10-01), Takeda
Kannan Philip C.
Yoshida Kogyo Kabushiki Kaisha
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