Abstract: The disclosure relates to an electric blower apparatus having a back plate, for carrying on the back of a user. The back plate has a plate axis, oriented in the vertical direction, an upper plate section and a lower plate section. The blower spiral of the blower apparatus comprises an axial end face, to which an electric motor is fixed having a drive shaft which is connected to a fan wheel. For the supply of energy, a battery pack is provided, which is arranged in a receiving space between the first, upper plate section of the back plate and the blower spiral. The housing shaft comprises an insertion opening which faces away from the electric motor.

Abstract: A collection bag is for receiving a collected material and an emptying opening configured in a specific shape for the collection bag which has a receiving space defined by a woven cloth. The receiving space is defined by outer edges of the collection bag. The woven cloth is at least partially air-permeable. The receiving space has an inlet opening for a blower air flow supplying the material and a closable emptying opening for removing the material. The receiving space opens into a tubular outlet section, the open end thereof forming the emptying opening. In a closed position of the outlet section, the receiving space or the emptying opening is closed. In an open position, the receiving space is connected to the surroundings via the emptying opening. In its open position, the outlet section protrudes from the bag and, in its closed position, the outlet section is located inside the bag.

Abstract: In a method for maintaining an aircraft air conditioning installation (10), a maintenance control device (100) is connected to a control system (12) of the aircraft air conditioning installation (10). A decontamination activation signal output by the maintenance control device (100) for the activation of a decontamination process is transmitted to the control system (12) of the aircraft air conditioning installation (10).

Abstract: A handheld blower apparatus includes a handle, a blower tube, a blower unit arranged in the tube, and has an intake opening and a discharge opening. The blower unit has a blower wheel rotationally driveable about a rotational axis aligned in the direction of an air flow flowing out from the wheel during operation. The wheel is driven by an electric motor supplied with energy by a battery. A handle opening extends between the handle and tube. A central plane intersects the handle and battery and contains the rotational axis. A compact, ergonomic arrangement is achieved when the battery and the handle are arranged on opposite sides of the tube and the top side of the tube, when viewed in the direction perpendicular to the central plane, has an indentation extending over at least 50% of the length, measured parallel to the rotational axis, of the handle opening.

Abstract: The disclosure relates to an electric blower apparatus having a blower spiral which has a first axial end wall, a second axial end wall and a blower air outlet. An electric motor which drives a fan wheel rotating in the blower spiral is held on the first axial end wall, the fan wheel inducting ambient air by way of an intake opening in the second axial end wall. A cover element, the cover surface thereof being configured so as to be larger than the air inlet surface of the intake opening, is disposed in front of the intake opening. To induct a large quantity of ambient air with little noise, it is provided that the cover element is configured as a cover plate, wherein an annular gap which forms the intake channel for the direct access of ambient air is configured between the plate edge and the blower spiral.

Abstract: The disclosure relates to an electric blower apparatus having a back plate, for carrying on the back of a user. The back plate has a plate axis, oriented in the vertical direction, an upper plate section and a lower plate section. The blower spiral of the blower apparatus comprises an axial end face, to which an electric motor is fixed having a drive shaft which is connected to a fan wheel. For the supply of energy, a battery pack is provided, which is arranged in a receiving space between the first, upper plate section of the back plate and the blower spiral. The housing shaft comprises an insertion opening which faces away from the electric motor.

Abstract: An electrically conductive composition as an electrically conductive adhesive for mechanically and electrically connecting at least one contact of a solar cell with an electrical conductor is provided. The contact is selected from emitter contacts and collector contacts and the electrically conductive composition contains (A) 2 to 35 vol.-% silver particles having an average particle size of 1 to 25 ?m and exhibiting an aspect ratio in the range of 5 to 30:1, (B) 10 to 63 vol.-% non-metallic particles having an average particle size of 1 to 25 ?m and exhibiting an aspect ratio in the range of 1 to 3:1, (C) 30 to 80 vol.-% of a curable resin system, and (D) 0 to 10 vol.-% of at least one additive, in which the sum of the vol.-% of particles (A) and (B) totals 25 to 65 vol.-%.

Abstract: An aircraft air conditioning system including a process air line having a first end connected to a process air source to allow a flow of process air therethrough. A ram air channel of the air conditioning system allows ambient air flow therethrough. A heat exchanger unit is disposed in the process air line and arranged within the ram air channel to thermally couple process air flowing through the process air line to ambient air flowing through the ram air channel. A water extractor disposed in the process air line downstream of the heat exchanger unit extracts water from the process air. A water supply system supplies extracted water into the ram air channel. The water supply system has a control arrangement to control a fluid connection between the water extractor and the ram air channel in dependence on an operating state of the aircraft air conditioning system.

Abstract: The present invention relates to a connector for connecting a solar cell electrode to a further element, whereby the connector comprises a conductor pattern on which at least one metallic coating is arranged, whereby the conductor pattern contains aluminium, characterised in that the coating contains an element selected from the group consisting of Ni, Ag, Sn, Pb, Zn, Bi, In, Sb, Co, Cr as well as alloys of said elements.

Abstract: An electrically conductive composition as an electrically conductive adhesive for mechanically and electrically connecting at least one contact of a solar cell with an electrical conductor is provided. The contact is selected from emitter contacts and collector contacts and the electrically conductive composition contains (A) 2 to 35 vol.-% silver particles having an average particle size of 1 to 25 ?m and exhibiting an aspect ratio in the range of 5 to 30:1, (B) 10 to 63 vol.-% non-metallic particles having an average particle size of 1 to 25 um and exhibiting an aspect ratio in the range of 1 to 3:1, (C) 30 to 80 vol.-% of a curable resin system, and (D) 0 to 10 vol.-% of at least one additive, in which the sum of the vol.-% of particles (A) and (B) totals 25 to 65 vol.-%.

Abstract: An aircraft air conditioning system including a process air line having a first end connected to a process air source to allow a flow of process air therethrough. A ram air channel of the air conditioning system allows ambient air flow therethrough. A heat exchanger unit is disposed in the process air line and arranged within the ram air channel to thermally couple process air flowing through the process air line to ambient air flowing through the ram air channel. A water extractor disposed in the process air line downstream of the heat exchanger unit extracts water from the process air. A water supply system supplies extracted water into the ram air channel. The water supply system has a control arrangement to control a fluid connection between the water extractor and the ram air channel in dependence on an operating state of the aircraft air conditioning system.