235results about "Mechanical suction control" patented technology

The present disclosure provides a robot cleaner including a suction motor installed within a main body to generate a suction force, at least two conductive plates (111, 112) spaced apart from each other to form a flowing path for external air introduced by the suction force, and a calculator (120) to measure a capacitance value between the at least two conductive plates (111, 112). A porous structure (210; 350) may be provided having at least one through hole (H) through which external air introduced by the suction force flows, a filter (33, 34; 310, 320, 330) disposed on one surface of the porous structure (210; 350) to filter dust contained in the air, and a power supply unit (220) configured to apply alternating current (AC) power to at least a partial surface of the porous structure (210, 350).

A suction port assembly for a vacuum cleaner and a vacuum cleaner having such a suction port comprises upper and lower housings, a plurality of suction ports formed in the lower housing, and a plurality of suction paths formed in the upper and lower housings to guide the air drawn in through the suction ports. With this arrangement, the efficiency of cleaning the lateral sides of the suction port assembly can be enhanced, and thus a wide area can be efficiently cleaned.

The invention relates to a vacuum cleaning device comprising a dirt collection container which has a suction inlet and is in flow connection with at least one suction unit via at least one filter and at least one suction line, and comprising at least one external air inlet which opens into the suction line downstream of the at least one filter and is adapted to be closed by means of at least one closing valve, the closing valve having a movable valve body which, in a closed position, bears against at least one valve seat so as to form one or more sealing lines, the at least one sealing line delimiting an area which, in the closed position of the closing valve, is acted upon by a differential pressure. In order to develop the vacuum cleaning device in such a way that the at least one closing valve is of structurally simple design and the at least one filter can be completely cleaned within a short period of time, the invention proposes that the square of the total length of all sealing lines is at least 25 times the total size of all areas which are delimited by the sealing lines and acted upon by a differential pressure.

A disposable open bag for a power tool such as a Shop-Vac cleaner is disclosed. The bag can comprise a mounting plate with an opening for receiving debris from the intake of the power tool. The mounting plate is also provided with a vent opening(s), e.g., to prevent the bag from closing in on the air filter and blocking the airflow. The said bag provides a cleaner and more convenient means of collection of the debris, leaves, and particulate maters directly into the bag.

A vacuum cleaning head includes a housing having a suction opening for admitting an air flow to the head, an agitator for agitating a surface to be cleaned, the agitator having an active state and an inactive state, a duct for receiving the air flow from the housing, and a control assembly for controlling the state of the agitator. The control assembly includes a pressure chamber having an interior volume in fluid communication with the duct and which is variable between an expanded configuration and a contracted configuration in response to a pressure difference between the interior volume and ambient air, an actuator for effecting a transition of the agitator from one of the active state and the inactive state to the other of the active state and the inactive state in response to a transition of the pressure chamber to the contracted configuration, and a control mechanism having a first state for preventing the pressure chamber from adopting the contracted configuration, and a second state for allowing the pressure chamber to adopt the contracted configuration. The control mechanism is arranged to change between the first and second states in response to an increase in the interior volume of the pressure chamber, for example in response to an increase in the air pressure within the duct.

The present invention is directed to a vacuum including a dust extraction system. The system includes a filter assembly, an airflow generation assembly, and valve assembly. The airflow generation assembly is configured to draw contaminated air toward the filter assembly and exhaust filtered air as a discharge stream. The filter assembly is configured to remove contaminants from the contaminated airflow by capturing particulate material suspended within the airflow. The valve assembly is configured to selectively direct filtered airflow into the filter assembly such that the filtered air stream cleans the filter.

A centrifugal blower includes a motor including a stator and a motor cover, a centrifugal impeller rotating together with a rotating portion of the motor, and a blower casing. The stator includes a stator core including a toric core back. The motor cover includes an upper surface, and a cylindrical outer peripheral surface extending downwards. The blower casing disposed above the impeller includes an upper side casing top plate portion in which an intake port is disposed at the middle, and a cylindrical wall portion extending downwards from the upper side casing top plate portion. An inner peripheral surface of the wall portion and the outer peripheral surface of the motor cover forms a flow path continuous in the axial direction. A discharge port is formed in a lower end portion of the flow path. The core back includes an exposed portion exposed to the flow path.

A vacuum cleaning head includes a pressure chamber having a first chamber section and a second chamber section which is moveable relative to the first chamber section in response to a pressure differential thereacross from a first position to a second position, and a control mechanism located within the pressure chamber. The control mechanism has a first state for inhibiting the movement of the second chamber section in response to said pressure differential beyond a third position intermediate the first and second positions, and a second state for allowing the second chamber section to move in response to said pressure differential to the second position. The control mechanism is arranged to change between the first and second states in response to a movement of the second chamber section from the third position. This can allow the pressure chamber to toggle between different configurations through varying the pressure differential across the second chamber section, for example to raise or lower part of the cleaner head, or to selectively activate or deactivate an agitator.

PURPOSE: To provide a vacuum cleaner of an upright type which enables both of floor cleaning and cleaning at hand, has improved suction efficiency from a suction tool body in floor cleaning and in which dust clogging is suppressed. CONSTITUTION: This vacuum cleaner is provided with the suction tool body 1 and a cleaner body 2 supported so as to freely swing on the suction tool body 1, is provided with a main body side flow passage from the suction tool body 1 to a dust collecting chamber of the cleaner body 2 and a flow passage for cleaning at hand to the dust collecting chamber, and is provided with an at-hand cleaning flow passage opening/closing means for closing the flow passage for cleaning at hand in a state of inclining the cleaner body 2 and performing floor cleaning and opening the flow passage for cleaning at hand in a state of erecting the cleaner body 2.

The invention relates to a dust collector (1), comprising a suction nozzle (2), a dust collector dust collection chamber (3) and a fan (4), wherein the suction nozzle (2) is connected with the fan (4) through a suction channel (5) during suction operation of the dust collector (1), so that sucked articles are conveyed to the dust collector dust collection chamber (3), the dust collector (1) is connected with a base station (6) for clean operation, so that the sucked articles contained in the dust collector dust collection chamber (3) are conveyed into a base station dust collection chamber (7) of the base station (6) via the fan (4) of the dust collector (1). In order to improve the dust collector, it is suggested that the dust collector (1) has a cleaning air channel (8) constructed independent of the suction channel (5) and used for connecting the fan (4) and the dust collector dust collection chamber (3) in the form of fluid technology, and a multichannel interface (9) configured for the cleaning air channel (8) and the suction channel (5), and the dust collector has a first connector (10) which connects the base station dust collection chamber (7) with the suction channel (5) and a second connector (11) which connects the base station dust collection chamber (7) with the cleaning air channel (8). The invention also relates to a system consisting of the base station (6) and the dust collector (1).

A vacuum appliance capable of picking up both wet and dry material is described, wherein the vacuum appliance includes an impeller configured to induce liquid into the vacuum appliance, a motor configured to turn the impeller, a restrictor assembly to prevent the liquid from being ingested into the motor, and a bypass vent assembly configured to allow sufficient air to reach the motor in order to keep the motor cool while the restrictor is preventing the liquid from being ingested into the motor. The vacuum appliance also includes a drum configured to retain the liquid and an impeller intake between the impeller and the drum. The restrictor may comprise a float configured to rise with a level of the liquid in the drum and prevent the liquid from entering the impeller intake. The bypass vent assembly may be configured to allow airflow to bypass the restrictor and/or the drum.

A vacuum cleaning tool has a housing having a connecting socket for effecting flow communication to a vacuum device of a vacuum cleaning device. The housing has a suction opening through which a working air flow enters the housing. The housing has an outlet opening through which the working air flow exits from the housing. A cleaning tool is rotatably supported in the housing. An air turbine is rotatably supported in a turbine chamber of the housing and drives the cleaning tool in rotation. A control device controls the drive power for driving the cleaning tool based on a pressure existing in the vacuum cleaning tool.

A vacuum cleaner nozzle including a nozzle head, the nozzle head including at least one mechanical beater and at least one sonic beater, the at least one sonic beater including a beater portion and an ultrasonic actuating member that vibrates the beater portion.

The present invention is directed to a vacuum including a dust extraction system. The system includes a filter assembly, an airflow generation assembly, and valve assembly. The airflow generation assembly is configured to draw contaminated air toward the filter assembly and exhaust filtered air as a discharge stream. The filter assembly is configured to remove contaminants from the contaminated airflow by capturing particulate material suspended within the airflow. The valve assembly is configured to selectively direct filtered airflow into the filter assembly such that the filtered air stream cleans the filter.

The invention relates to a suction nozzle (1) for a vacuum cleaning device (2). The suction nozzle (1) has a suction mouth (3) and a suction channel (4) for connecting the suction mouth (3) to a blower of the vacuum cleaning device (2), wherein the suction nozzle (1) comprises a sensor (5), which is movably mounted on a housing (7) of the suction nozzle (1) and is used for detecting the nature of a surface (6) to be cleaned. The suction channel (4) moves relative to surface (6) depending on the detection result of the sensor (5), in particular from a hard bottom position to a carpet position or vice versa. In order to improve the detection result of the sensor (5), it is proposed that the sensor (5), which is in a normal operation state in the suction nozzle, has permanent contact with the surface (6) regardless of the type of surface (6) and moves on the basis of a frictional force between the surface (6) and the sensor (5).

A vacuum hose handling and safety vacuum release system, a tubular column attachable to an industrial vacuum hose end having a long handle and a short T-handle positioned at right angles to each other that will allow a user to strategically place the metallic vacuum tube conveniently and easily to vacuum debris in a safe manner. The tube has at least one bypass orifice that the user can open to reduce or eliminate the suction at the nozzle via a lever pivotally located adjacent the T-handle.