Movable or removable closures – Stored in housing – Reciprocates vertically in and out of housing
Patent
1978-01-18
1978-11-21
Kannan, Philip C.
Movable or removable closures
Stored in housing
Reciprocates vertically in and out of housing
49349, 49351, 49363, 49380, E05F 1138
Patent
active
041259661
ABSTRACT:
A unitized frame housing a slidable door. The main body of the frame is a single molded structure fittable between a pair of walls within a building. Guide means provided within the main body slidably receives a door which is opened and closed by an electric motor. Various linkages and gears connect the electric motor to the door. A neck integrally attached to the main body extends outwardly of the building walls housing the main body of the frame forms a passageway allowing access through the building walls and main body when the door is not closed. The neck flares outwardly providing a trim portion which seats outwardly of the building walls facilitating a smooth boundary between the building and neck. Means are provided for securing the unitized main body to the building.
REFERENCES:
patent: 1221766 (1917-04-01), Pitcher
patent: 1583835 (1926-05-01), Hynes
patent: 1643064 (1927-09-01), Elliott
patent: 2026886 (1936-01-01), Goeltz et al.
patent: 3009984 (1961-11-01), Lindgren
patent: 3266204 (1966-08-01), Andrews
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