A jack, comprising: a top plate adapted to contact a load; an intermediate plate positioned below the top plate, the intermediate plate having a channel formed therein; a base plate positioned below the intermediate plate; a first pair of actuators coupled between the base plate and the intermediate plate, one of the first pair of actuators positioned on either side of the channel; and, a second pair of actuators coupled between the channel of the intermediate plate and the top plate; wherein the first and second pairs of actuators are operable to move the top plate and the intermediate plate between respective lowered positions and respective raised positions to thereby lower and raise the load.


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    Title :

    Telescoping jack for lifting large capacity trucks


    Contributors:
    DESORMEAU WAYNE (author) / WEAVER JEFF (author) / MATHIEU GUY (author)

    Publication date :

    2019-12-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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