Abstract: A dust collector with a dust collecting bag includes a housing defining a dust collecting chamber; a bracket in the dust collecting chamber; an operating member connectable with the bracket; the dust collecting bag being mounted to a supporting plate; and the bracket being rotatable around a rotating member from a first position to a second position. The housing further includes a connecting member, and the operating member includes a first state and a second state. When the operating member is in the first state, the bracket is located at the first position, and the supporting plate mounted on the bracket is connected with the connecting member. When the operating member is in the second state, the bracket drives the supporting plate to move towards the second position so that the supporting plate is separated from the connecting member, and the supporting plate is separated from the bracket.

Abstract: The present invention is an improved vacuum filter or collection bag assembly for vacuum cleaners and other appliances, particularly upright vacuum cleaners. The filter bag assembly includes a filter bag with a sealing and locking rim assembly which mates with a section of the vacuum filter housing, so as to ensure proper seating and minimization of dust and dirt escaping from the filter bag during vacuum operation. The assembly may also include a gasket ring for additional sealing.

Abstract: Methods and systems for detecting the presence of a leak in a baghouse bag installed in a baghouse system having at least one compartment. The methods include using a system to acquire electrical signals corresponding to the opacity of gas flow through an outlet of a baghouse system during a start-up of one or more compartments of the baghouse system and comparing the electrical signals corresponding to the opacity of the gas flow with electrical signals characteristic of a leak in at least one of the baghouse bags of the baghouse system.

Abstract: A removable dust collector for use in a dust compartment of a vacuum cleaner is provided and includes a holder that maintains the dust collector in an operating position, and a locking member that is placed in a locking position when the dust collector is removed. A cover of the dust compartment is prevented from closing and is placed in a release position when the dust collector is in an operating position. The locking member is maintained in its release position either by means of a filter bag inserted into a carrier or by an actuating member associated with the dust collector.

Abstract: A vacuum cleaner including an electric blower for generating suction air, a collecting unit for collecting dust contained in the suction air, a dust removing unit for removing dust adhered to the collecting unit, and a dust removing stop unit for stopping an operation of the dust removing unit. The dust removing stop unit stops the operation of the dust removing unit in response to a user's selection or an operation mode of the vacuum cleaner, thereby saving a power consumption of the dust removing unit.

Abstract: A self-moving device and method for the complete and full automatic examination of floor surfaces of all kind as well as for a particularly efficient suction of dust therefrom. In each case, the robot is controlled so as to explore the adjacent area and to detect the potential obstacles using special sensors before storing them in a data field. The displacement towards a new location is then carried out using the stored data until the whole accessible surface has been covered. One of the main constituent members of the robot includes an extensible arm that rests on the robot and on which contact and range sensors are arranged. When the robot is used as an automatic vacuum cleaner, an air flow is forced into the robot arm and the cleaning effect can further be enhanced by providing one or more circular rotary brushes at the front end of the arm. This device can essentially be used for domestic or industrial cleaning purposes with a view to replace traditional vacuum cleaners.

Abstract: A dust container for a vacuum cleaner having contacts electrically connected to an electric circuit that permits the vacuum cleaner to be activated only when an electrical connection is established between the contacts. The dust container includes a bag of air pervious material having an opening formed therein. A plate covers the opening in the bag. The plate is formed from at least two layers of cardboard and has an opening extending therethrough. An electrical conductor is disposed between the layers of cardboard. When the dust container is properly mounted in the vacuum cleaner, the electrical conductor establishes and electrical connection between the contacts, thereby permitting the vacuum cleaner to be activated.

Abstract: A detection means for filter means in vacuum cleaners, into which in addition to a vacuum cleaner bag at least one additional filter is able to be inserted. It comprises a sensor means responsive to the filter means inserted into said vacuum cleaner and switch means controlled by said sensor means for preventing switching of the vacuum cleaner motor if said filter means is not correctly recognized. The at least one electronic sensor means responsive to a detectable element in or on at least one additional filter by means of electromagnetic waves is connected with the switching means via an evaluating or processing means, adapted to check the correct position and design of the at least one detectable element.