Vertically slidable window unit

Details Vertically slidable window unit Vertically slidable window unit

1991-07-22

1992-06-09

Kannan, Philip C.

Movable or removable closures

Mounted for optional movements

Pivoted closure within framework of double hung sash

49178, 49179, 49422, 49445, E05D 1522

Patent

active

051195917

ABSTRACT:
An improved vertically slidable pivotal window unit having a spring loaded jamb latch assembly which provides a mechanically positive latching and release mechanism in going from the vertically displaceable to horizontally pivotal sash opening and closing modes.

REFERENCES:
patent: 2104860 (1938-01-01), Fuchsman
patent: 2165943 (1939-07-01), Schuler
patent: 2921349 (1960-01-01), Humphrey
patent: 3206804 (1965-09-01), Perry
patent: 3287853 (1966-11-01), Silverman
patent: 3399491 (1968-09-01), Dawidowicz
patent: 3890741 (1975-06-01), Johnson et al.
patent: 3981101 (1976-09-01), Guzzi
patent: 4227345 (1980-10-01), Durham, Jr.

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