Filter arrangement for filtering dust-laden air generated by a hand-guided power tool and power tool arrangement comprising a hand-guided power tool and such a filter arrangement

    公开(公告)号:US12157081B2

    公开(公告)日:2024-12-03

    申请号:US18142761

    申请日:2023-05-03

    Inventor: Guido Valentini

    Abstract: A filter arrangement for filtering dust-laden air generated by a hand-guided power tool having a motor features a filter cartridge having a hollow casing with a longitudinal extension along a longitudinal axis, a hollow filter element located inside the hollow casing, having a longitudinal extension along the longitudinal axis, an air inlet port in the hollow casing, pneumatically connected to the power tool to allow the dust-laden air generated by the power tool to flow into the hollow casing, and an air outlet port in the hollow casing, to allow filtered air to leave the filter cartridge. An external chamber of the filter cartridge is formed between the hollow casing and the hollow filter element. An internal chamber is formed inside the hollow filter element. The internal chamber is closed by a conical head portion at a first end of the internal chamber facing towards the air inlet port. The external chamber is in pneumatic connection with the air inlet port and the internal chamber at a second end opposite to the first end is in pneumatic connection with the air outlet port. The filter arrangement includes an active airflow generating device being in pneumatic connection with the air outlet port and the internal chamber of the filter cartridge in order to generate or support the airflow through the filter cartridge.

    Air treatment system for a closable room, in particular for a cabin, of a vehicle

    公开(公告)号:US12145421B2

    公开(公告)日:2024-11-19

    申请号:US17694289

    申请日:2022-03-14

    Abstract: An air treatment system is described, for a closable room of a vehicle, comprising: an air conditioning device provided with a fan and connectable to the room; an inlet opening for outside air, connected to the air conditioning device; a filtration device for filtering the outside air entering from the inlet opening; a recirculation port; a valve assembly provided with a shutter member, interposed between the inlet opening, the recirculation port and the air conditioning device and movable between a plurality of operating positions, in which it varies the shares of air coming from the inlet opening and the recirculation port; and a control unit to adjust the operating position of the shutter member so as to control the shares of air being drawn from the inlet opening and from the recirculation port and to maintain a predetermined value of overpressure in the room with respect to the outside.

    Refrigerator
    4.
    发明授权

    公开(公告)号:US12140366B2

    公开(公告)日:2024-11-12

    申请号:US17564427

    申请日:2021-12-29

    Abstract: A refrigerator includes a storage compartment having a front opening and an air sanitation device mounted on a top wall of the storage compartment. The air sanitation device includes: a housing, an air channel located in the housing, a fan, and an air detection device and/or an air purification device located in the air channel. The housing includes a front wall facing the front opening, a rear wall, an upper wall, a lower wall, and a pair of side walls. The air channel includes an air inlet and an air outlet. The fan is configured to force air to enter the air channel from the air inlet, and then be discharged out from the air outlet. The air inlet is located on at least one of the side walls, and the air outlet is located on the rear wall.

    CLEAN-AIR PARTITION SYSTEMS
    5.
    发明申请

    公开(公告)号:US20240367085A1

    公开(公告)日:2024-11-07

    申请号:US18683255

    申请日:2022-08-12

    Abstract: The present invention relates to Clean-Air Partition Systems. The system (100) comprises of mainframe (10) including an upper frame (10a) and a lower frame (10b), control panel and display (11), stand (12), plurality of wheels (13), a first high-efficiency particulate air (HEPA) filter (14) placed in the upper frame (10a) of the main frame (10) and a second high-efficiency particulate air (HEPA) filter (15) placed in lower frame (10b) of the main frame (10), an Airflow Separation Module (ASM) (16); and Smart Particle Sensor Actuator Set (SPSAS) (17a, 17b). The design and methodology of construction of system (100) structure is fitted with high-efficiency particulate air (HEPA) filters (14, 15). The high-efficiency particulate air (HEPA) filters are fitted on both the front-end and read-end of the system. The aim of the present invention is to provide low-cost, convenient clean-air partition systems for protection against contraction of infectious diseases.

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