A drum construction for an overhead garage door lift assembly includes a spiral groove comprised of three connected sections each having a distinct sequence of radii to facilitate raising and lowering of a multi-panel garage door mounted on a track in a manner which avoids undesirable surface impact of the door upon closing and enhances torque energy for lifting from the closed position.


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    Title :

    CABLE DRUM CONSTRUCTION FOR MULTIPLE, HORIZONTAL, ARTICULATING PANEL DOOR ASSEMBLY


    Additional title:

    CONSTRUCTION DE TAMBOUR DE CABLE DESTINE A L'ASSEMBLAGE DE PORTE A PANNEAU ARTICULE, HORIZONTAL, MULTIPLE


    Contributors:

    Publication date :

    2019-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E05F DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION , Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung / B66D Haspeln , CAPSTANS / E06B Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore , FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES




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