Mini sewage treatment system
    4.
    发明授权
    Mini sewage treatment system 失效
    MINI SEWAGE治疗系统

    公开(公告)号:US3825494A

    公开(公告)日:1974-07-23

    申请号:US28472672

    申请日:1972-08-30

    Abstract: This invention pertains to an efficient ecological waste sewage system which eliminates the necessity of large leaching beds or seepage pits from cesspool digested sewage effluent. It consists of the system and the apparatus for effecting the disposal of such sewage waste by preliminary digesting the raw waste material, preferably in primary and secondary digesting steps, passing the resulting liquid with fine solids therein in sequence and in controlled consecutive order to a series of steeling tanks, subjecting the liquid effluent therefrom to a simultaneous aeration-ultra violet ray sterilization treatment, and removing the water effluent therefrom as reusable water. New and novel aeration-irradiation treatment units are disclosed which provide a novel, very efficient system for effecting the elimination of sewage waste in areas where sewers are not available or where land type and quality prevent the use of present day systems for the disposal of said wastes and producing usable water therefrom.

    Lift having self-folding platform
    5.
    发明授权
    Lift having self-folding platform 失效
    提升自折叠平台

    公开(公告)号:US3675739A

    公开(公告)日:1972-07-11

    申请号:US3675739D

    申请日:1970-07-10

    CPC classification number: B60P1/4421

    Abstract: A lift which contains a self-folding platform is disclosed. The rear of a truck may be equipped with the lift to provide a loading and unloading device as well as a tailgate for the truck.

    Abstract translation: 公开了一种包含自折叠平台的电梯。 叉车的后部可能装有电梯,以提供装卸装置以及叉车的后挡板。

Patent Agency Ranking