Abstract: The invention provides a vacuum cleaner filter bag, comprising a wall enclosing an interior and made of an air-permeable material and an inlet opening introduced into the wall, characterized in that the air-permeable material comprises at least one layer of a nonwoven fabric which comprises powdery and/or fibrous recycled material from the production of textiles, in particular cotton textiles, and/or from wool shearing and/or seed fibers.

Abstract: The invention comprises a retaining plate (1), comprising a first plate (2) and a second plate (3) arranged in a first plane, and a third plate (8) arranged in a second plane which runs in parallel to the first plane, the third plate (8) having a lower flexural stiffness than the first plate (2) and the second plate (3), wherein the first plate (2) and the second plate (3) are interconnected by means of the third plate (8) such that a hinge is formed between the first plate (2) and the second plate (3) about the hinge axis (A) of which the first plate (2) and/or the second plate (3) can be bent together with the respective part of the third plate (8) connected thereto.

Abstract: The invention comprises a vacuum-cleaner filter bag (1) having a bag wall (2) and a retaining plate (3), the retaining plate (3) the retaining plate (3) comprising an least partially cylindrical connection piece (4) extending in the direction of the through opening (5) formed in the retaining plate (3), the bag wall (2) being connected to the lateral surface of the connection piece (4) along the periphery of the connection piece.

Abstract: The invention comprises a vacuum cleaner filter bag (1), comprising a bag wall (2) and a retaining plate (3), wherein the retaining plate (3) is connected to an at least partially cylindrical connection piece (4) which extends in a direction perpendicular to a passage opening (5) formed in the retaining plate (3), wherein the bag wall (2) is connected with the lateral surface of the connection piece (4) along the circumference thereof.

Abstract: The present invention relates to a vacuum cleaner filter bag made of a thermally weldable filter material which forms the sealed internal space of the vacuum cleaner filter bag. The internal space is thereby closed at least on one side by means of a weld seam configured according to the invention, in the case of which at least two layers of the filter material are welded together. The weld seam configured according to the present invention is distinguished by a far higher tearing strength, compared with weld seams as are known from the state of the art. The invention relates in addition to a method for the production of the vacuum cleaner filter bag, to a tool for the production of the high-strength weld seam and also to an ultrasonic welding unit in which this tool is integrated.

Abstract: The present invention relates to a vacuum cleaner filter bag composed primarily of plastic recyclates.

Abstract: The invention provides a vacuum cleaner filter bag comprising a wall of an air-permeable material enclosing an interior and an inlet opening introduced into the wall, wherein the air-permeable material comprises at least one layer of a nonwoven fabric, which comprises powdery and/or fibrous recycled material from the production of textiles, in particular cotton textiles, wherein the at least one layer of the nonwoven fabric comprises powdery and/or fibrous recycled material having a density of 0.005 g/cm3 to 0.03 g/cm3, in particular of 0.007 g/cm3 to 0.02 g/cm3.

Abstract: The invention relates to a vacuum-cleaner filter bag comprising a wall made of an air permeable material and surrounding an inner chamber, and an inlet opening introduced into the wall. The vacuum-cleaner filter bag is characterized in that the air permeable material comprises at least one layer made from a non-woven fabric and/or a layer made from a fiber web which comprises fibers or is made from fibers which are made from a recycled plastic or a plurality of recycled plastics.

Abstract: The invention provides a vacuum cleaner filter bag, comprising a wall enclosing an interior and made of an air-permeable material and an inlet opening introduced into the wall, characterized in that the air-permeable material comprises at least one layer of a nonwoven fabric which comprises powdery and/or fibrous recycled material from the production of textiles, in particular cotton textiles, and/or from wool shearing and/or seed fibers.

Abstract: The present invention relates to methods for the production of an improved integral connection of a retaining plate to the wall of a vacuum cleaner filter bag. According to a first variant, the retaining plate is not applied directly on the wall of the vacuum cleaner filter bag but rather a textile material is disposed between retaining plate and the wall. The connection of the retaining plate and the wall of the vacuum cleaner filter bag is thereby effected via the textile material. According to a second variant, in regions between retaining plate and wall of the vacuum cleaner filter bag, a film made of a thermoplastic material is disposed between wall of the vacuum cleaner filter bag and retaining plate. The connection of the retaining plate and the wall of the vacuum cleaner filter bag is thereby effected via the film. According to a third variant, the retaining plate is connected directly to the wall of the vacuum cleaner filter bag.

Abstract: The invention relates to a method for optimizing a vacuum cleaning system comprising a substantially hoseless and tubeless vacuum cleaning device and a filter bag, where the substantially hoseless and tubeless vacuum cleaning device comprises a motor-fan unit having a characteristic motor-fan curve, a filter bag receptacle, a connection port for the filter bag and a cleaning head, and where the filter bag comprises filter material made of nonwoven material, comprising the step of: adapting the characteristic motor-fan curve and the size, the shape and the material of the filter bag and the size and the shape of the filter bag receptacle and the inner diameter of the connection port for the filter bag and the cleaning head to each other such that the vacuum cleaning system achieves an efficiency of at least 30%, preferably of at least 34%, particularly preferably of at least 38% when vacuuming according to the Standard on a Standard carpet type Wilton with an empty filter bag, where vacuuming according to the

Abstract: The invention relates to a method for optimizing a vacuum cleaning system comprising a cylinder vacuum cleaning device and a filter bag, wherein the cylinder vacuum cleaning device comprises a motor-fan unit having a characteristic motor-fan curve, a filter bag receptacle, a hose, a tube, a connection port for the filter bag, and a cleaning head, and wherein the filter bag comprises filter material made of nonwoven material comprising the step of: adapting the motor-fan characteristic curve and the size, the shape and the material of the filter bag and the size and the shape of the filter bag receptacle and the length and the inner diameter of the tube and the length and the inner diameter of the hose and the inner diameter of the connection port for the filter bag and the cleaning head to each other such that the vacuum cleaning system achieves an efficiency of at least 24%, preferably of at least 28%, particularly preferably of at least 32%, when vacuuming according to the Standard on a Standard carpet type

Abstract: The invention relates to a retaining plate for a vacuum cleaner bag which has an inlet opening, the retaining plate being formed by thermoforming and subsequent stamping of a film made of a thermoplastic material.

Abstract: The invention relates to a vacuum cleaning apparatus comprising a vacuum cleaner and a filter bag.

Abstract: The present invention relates to an autonomously operable vacuum cleaner that has a modular design. The vacuum cleaner in this respect comprises a cleaning head module as well as a separate canister module. The cleaning head module and the canister module are in this respect connected to one another via a hose so that dust sucked in via the cleaning head module can be conveyed into the canister module.

Abstract: The present invention relates to a vacuum cleaner filter bag made of a thermally weldable filter material which forms the sealed internal space of the vacuum cleaner filter bag. The internal space is thereby closed at least on one side by means of a weld seam configured according to the invention, in the case of which at least two layers of the filter material are welded together. The weld seam configured according to the present invention is distinguished by a far higher tearing strength, compared with weld seams as are known from the state of the art. The invention relates in addition to a method for the production of the vacuum cleaner filter bag, to a tool for the production of the high-strength weld seam and also to an ultrasonic welding unit in which this tool is integrated.

Abstract: The invention relates to a vacuum cleaning apparatus comprising a vacuum cleaner and a filter bag.

Abstract: The present invention relates to a vacuum cleaner filter bag for an upright vacuum cleaner. The vacuum cleaner filter bag according to the invention thereby has a greater length than width, one long side and one narrow side resulting. It is formed from two bag walls which are joined together circumferentially so that an internal space is configured between the two bag walls. One bag wall thereby has an inlet opening through which air to be cleaned can flow into the vacuum cleaner filter bag. The vacuum cleaner filter bag according to the invention is distinguished by the bag wall in which the inlet opening is introduced having folding which extends in the longitudinal direction of the vacuum cleaner filter bag, as a result of which this bag wall has increased flexibility and the vacuum cleaner filter bag opens during folding-over of the retaining plate when inserting the filter bag in a vacuum cleaner such that the air can enter essentially unimpeded into the filter bag.

Abstract: The invention relates to a retaining plate for a vacuum cleaner bag which has an inlet opening, the retaining plate being formed by thermoforming and subsequent stamping of a film made of a thermoplastic material.

Abstract: A filter bag for a vacuum cleaner made of a composite material including at least three layers, at least two layers which include a nonwoven fabric layer and at least one nonwoven fiber layer being connected by a weld.