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    Combination aspirator and spray nozzle
    1.
    发明授权
    Combination aspirator and spray nozzle 失效
    组合吸气和喷雾喷嘴

    公开(公告)号：US3698644A

    公开(公告)日：1972-10-17

    申请号：US3698644D

    申请日：1971-02-17

    Applicant: ECONOMICS LAB

    Inventor： NYSTUEN DAVID L

    IPC: B05B7/04 ,  B05B7/12 ,  B05B7/30 ,  D06F43/00

    CPC classification number: B05B7/12 ,  B05B7/0408 ,  B05B7/30 ,  B05B12/002 ,  D06F43/002

    Abstract: A portable hand-held spray gun having a hollow handle defining a water passageway therein, a venturi positioned in the water passageway and a product conduit line in communication with the throat of the venturi for injecting product (e.g. a liquid detergent) into the water flow. Two trigger-operated valves separately control the flow of water through the water passageway and the injection of the product into the water flow. A nozzle for forming a variable spray pattern is provided downstream of the venturi, the dimensions of the nozzle orifice and venturi throat being such that the injection rate of the product is essentially constant over a wide range of spray patterns.

    Electronic detergent dispensing system
    3.
    发明授权
    Electronic detergent dispensing system 失效
    电子洗涤剂分配系统

    公开(公告)号：US3881328A

    公开(公告)日：1975-05-06

    申请号：US33513673

    申请日：1973-02-23

    Applicant: ECONOMICS LAB

    Inventor： KLEIMOLA DAVID L ,  NYSTUEN MARCUS I ,  NYSTUEN DAVID L

    IPC: D06F39/02 ,  H03K17/292 ,  D06F33/02

    CPC classification number: D06F39/022 ,  H03K17/292

    Abstract: A detergent dispensing system for sequentially and automatically injecting various liquid products (e.g., detergents, fabric conditioners, neutralizers, etc.) into a laundry washing machine. Each liquid product is independently connected to a venturiaspirator positioned within separate carrier fluid conduits (e.g. water conduits) and product is drawn into the respective carrier fluid conduits upon passage of carrier fluid therethrough. Electrical control means, including electrical timing apparatus, triggered by a signalling device synchronized with the machine washing cycle selectively actuates and deactuates a solenoidoperated valve positioned upstream of each venturi-aspirator so as to allow injection into the carrier fluid of a predetermined quantity of each liquid product at the desired point in the machine cycle.

    Abstract translation: 一种洗涤剂分配系统，用于将各种液体产品（例如洗涤剂，织物调理剂，中和剂等）顺序地和自动地注入到洗衣机中。 每个液体产品独立地连接到位于分离的载体流体管道（例如水管道）内的文丘里抽吸器，并且当载体流体通过其中时，产品被吸入相应的载体流体管道中。 由与机器洗涤循环同步的信号装置触发的包括电定时装置的电气控制装置选择性地致动和停止位于每个文丘里抽吸器上游的电磁阀，以允许将预定量的 每个液体产品在机器周期中的所需点。

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