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    Sewage system
    5.
    发明授权
    Sewage system 失效
    排污系统

    公开(公告)号：US3616465A

    公开(公告)日：1971-11-02

    申请号：US3616465D

    申请日：1970-06-04

    Applicant: KOEHLER DAYTON

    Inventor： HELKE ROBERT C ,  GILDER CHARLES E VAN ,  MILLER MERLIN S

    IPC: E03D5/016 ,  E03D1/00

    CPC classification number: E03D5/016

    Abstract: A SELF-CONTAINED, RECIRCUALTING TOILET INCLUDES A MAIN HOLDING TANK HAVING A DRAIN OPENING IN THE BOTTOM THEREOF AND AN ACCESS OPENING IN THE TOP OF THE TANK IN SUBSTANTIALLY VERTICALLY SPACED RELATION TO THE DRAIN OPENING. A UNITARY PUMP, FILTER, AND DRAIN VALVE ASSEMBLY IS INSERTED THROUGH THE ACCESS OPENING WITH SAID DRAIN VALVE SEALING THE DRAIN OPENING WHEN THE ASSEMBLY IS LOCKED IN PLACE. THE DRAIN VALVE SEAL FORMS PART OF THE FILTER AND INCLUDES AN OUTWARDLY EXTENDING LIP WHICH ENGAGES THE SURFACE OF THE TANK TO FOEM ONE SEAL, AND A CIRCUMFERENTIALLY EXTENDING RIDGE AXIALLY SPACED FROM THE RIDGE WHICH ENGAGES THE INSIDES OF THE DRAIN OPENING TO FORM A SECOND SEAL.

    Automatic macerator unit
    6.
    发明授权
    Automatic macerator unit 失效
    自动MACERATOR单位

    公开(公告)号：US3563384A

    公开(公告)日：1971-02-16

    申请号：US3563384D

    申请日：1968-10-03

    Applicant: KOEHLER DAYTON

    Inventor： DELANEY RONALD E ,  SMYERS WILLIAM H JR ,  HELKE ROBERT C ,  RUSSO RONALD D ,  CARLSON GORDON R

    IPC: C02F1/68 ,  C02F9/00 ,  C02C1/00

    CPC classification number: C02F1/688 ,  B01F1/0027 ,  B01F5/0608 ,  C02F2103/005 ,  C02F2201/001 ,  E03D9/10

    Abstract: A treatment unit for use on toilets such as used in small ships including a housing having separate holding chambers with a treatment chamber disposed therebetween. A macerator reduces the size of solids in the first chamber from where the effluent flows into the treatment chamber containing a plurality of chemical tablets for purifying the effluent. The effluent then passes into the second holding chamber from which it is discharged from the unit. Sensing apparatus is provided to inactivate the macerator when the level of tablets is below a preset minimum, and a pressure operated time delay switch is utilized to initiate operation of the macerator upon an increase in pressure in the inlet to the unit.

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