Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – With mounting or supporting means
Patent
1980-12-03
1984-01-24
Caun, Peter M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
With mounting or supporting means
160332, E05D 1526
Patent
active
044270496
ABSTRACT:
The power operated bi-fold strip curtain door assembly is well-suited for doorways and openings to conserve energy and has applications, as an example, in the car wash industry and in industrial plants. Strip curtain supporting inboard and outboard sections are hinged together at next adjacent side edges in side-by-side relation. The inboard section is suspended from an overhead track by a carriage guidingly engaged with the track. A fluid power actuator, when energized, operates to fold and extend the door sections to respectively open and close the strip curtain door. One of the door sections has a side edge strip curtain upper horizontal hem portion reinforced such that its vertical border portion extends laterally in the plane of the strip door section a predetermined distance therebeyond. With the bi-fold door extended, the border portion is moved into overlapping flush relation to the neighboring strip curtain section providing a seal therebetween. Sensors, as an example, are located on one or both sides of the doorway for signaling the door actuators. Upon sensing the presence of a vehicle, the bi-fold curtain door assembly automatically folds open avoiding contact with the vehicle, as it passes through the doorway.
REFERENCES:
patent: 687035 (1901-11-01), Kinnean
patent: 1162231 (1915-11-01), Fritz
patent: 1581854 (1926-04-01), Moy
patent: 1758600 (1930-05-01), Grassi
patent: 1949224 (1934-02-01), Toelle
patent: 1963321 (1934-06-01), Yowell
patent: 2895728 (1959-07-01), Edelman
patent: 3614975 (1971-10-01), Aymond
patent: 4289190 (1981-09-01), Catan
Belanger James A.
Calvin Douglas J.
Lapham James M.
Wentworth Robert J.
Belanger, Inc.
Caun Peter M.
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