A hydraulic power unit for a floor jack that includes a secondary safety check valve (SSCV) to provide additional leakdown protection, backing up the main check valve. The SSCV acts as a safety measure to prevent the unit from losing load bearing capabilities if the main check valve fails. In addition, the SSCV acts as a means to prevent debris from entering the main check valve, thereby reducing the chance for failure due to an obstruction.


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    Title :

    Hydraulic pump with secondary safety check valve


    Contributors:

    Publication date :

    2022-05-25


    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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