Surface cleaning apparatus
    244.
    发明授权

    公开(公告)号:US11445872B2

    公开(公告)日:2022-09-20

    申请号:US16440701

    申请日:2019-06-13

    Abstract: A surface cleaning apparatus has a cyclone chamber and a dirt collection chamber. The cyclone chamber has a sidewall extending from a first end to an axially opposed second end. The dirt collection chamber has first and second axially opposed ends, the second end of the dirt collection chamber is located axially inwardly from the first end of the dirt collection chamber and the second end of the dirt collection chamber has a second end wall that is spaced axially inwardly from the second opposed end of the cyclone chamber.

    Method of recycling heat
    245.
    发明授权

    公开(公告)号:US11441844B2

    公开(公告)日:2022-09-13

    申请号:US16545421

    申请日:2019-08-20

    Abstract: This disclosure provides a method of recycling heat during operation of a plant in which equipment for processing at least two different materials is co-located. The method comprises a first process for processing a first material and a second process for processing a second material. The second material has a melting point that is less than a melting point of the first material. During the first process, the first material is subjected to a first melting process and then subjected to a first cooling process that includes solidification of the first material. During the second process, the second material is subjected to a second melting process and then subjected to a second cooling process that includes solidification of the second material. The method comprises recovering heat from the first cooling process and using at least some of the heat as a heat source for the second melting process.

    Surface cleaning apparatus
    246.
    发明授权

    公开(公告)号:US11375861B2

    公开(公告)日:2022-07-05

    申请号:US16386950

    申请日:2019-04-17

    Abstract: A hand vacuum cleaner has a front end, a rear end, a longitudinal axis extending between the front and rear ends, an air flow passage, an air treatment member, an outer wiper, and a front door. The air treatment member includes a treatment chamber having a porous dirt separator. The wiper travels across at least a portion of an outer wall of the porous dirt separator as the wiper moves between a first position to a second position. The front door is moveably mounted between a closed position and an open position, and is drivingly connected to the wiper whereby when the front door moves from the closed position to the open position, the wiper travels from the first position to the second position. A hand vacuum cleaner also has a first cleaning stage which is rotatable to an open position wherein as the first cleaning stage is opened a wiper cleans a porous substrate.

    CYCLONIC SURFACE CLEANING APPARATUS
    248.
    发明申请

    公开(公告)号:US20220142423A1

    公开(公告)日:2022-05-12

    申请号:US17549211

    申请日:2021-12-13

    Abstract: A hand vacuum cleaner has a main body housing a suction motor, the suction motor having a suction motor axis of rotation. A cyclone assembly is removably mounted to the main body. The cyclone assembly comprises a first cyclonic stage and a second cyclonic stage. The first cyclonic stage comprises a first stage cyclone, and the second cyclonic stage comprises a plurality of cyclones in parallel. The first cyclonic stage is provided at a front end of the hand vacuum cleaner, the second cyclonic stage is positioned rearward of the first cyclonic stage, and the suction motor is positioned rearward of the second cyclonic stage. The first stage cyclone axis of rotation, the second stage cyclone axes of rotation and the suction motor axis of rotation are parallel. The first stage cyclone axis of rotation extends through the second cyclonic stage and the suction motor.

    SURFACE CLEANING APPARATUS HAVING AN ENERGY STORAGE MEMBER AND A CHARGER FOR AN ENERGY STORAGE MEMBER

    公开(公告)号:US20220133111A1

    公开(公告)日:2022-05-05

    申请号:US17576347

    申请日:2022-01-14

    Abstract: A surface cleaning apparatus includes a floor cleaning unit and a portable surface cleaning unit. The floor cleaning unit includes a surface cleaning head, an upper section moveably mounted to the surface cleaning head between an upright storage position and a rearwardly inclined floor cleaning position, a charger having an energy storage member, and an air flow path extending from the dirty air inlet to a floor cleaning unit air outlet. The portable surface cleaning unit is connectable to the floor cleaning unit, and includes a portable surface cleaning unit air inlet connectable in air flow communication with the floor cleaning unit air outlet, a main body, an air treatment member, a suction motor, a handle and a capacitor. When fully charged, the energy storage member stores sufficient stored power to recharge the capacitor at least twice.

    Surface cleaning apparatus
    250.
    发明授权

    公开(公告)号:US11235339B2

    公开(公告)日:2022-02-01

    申请号:US16911851

    申请日:2020-06-25

    Abstract: A hand vacuum cleaner has an upstream air treatment stage having an upstream air treatment member and a longitudinal axis extending between the front and rear ends of the downstream air treatment stage, and a downstream air treatment stage a downstream air treatment member and a downstream dirt collection chamber that is exterior to the downstream air treatment member. The downstream air treatment member is positioned rearward of the upstream air treatment member. The downstream dirt collection chamber extends forward of the downstream air treatment member to a location that is forward of the rear end of the upstream air treatment stage.

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