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公开(公告)号：US20240317461A1
公开(公告)日：2024-09-26
申请号：US18612861
申请日：2024-03-21
发明人： Markus Pfeifer , Andreas Rieger , Alexander Fuchs , Jonathan Seiz , Jana Nuelle , Christin Arnold , Markus Koenig , Markus Oesterle
摘要： 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.
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公开(公告)号：US20240246121A1
公开(公告)日：2024-07-25
申请号：US18416586
申请日：2024-01-18
发明人： Matthias Sauter , Klaus Kaupp , Anna Mirl
IPC分类号： B08B3/02
CPC分类号： B08B3/026 , B08B2203/0205 , B08B2203/0229
摘要： A pressure washer includes a connection for a fluid source, a pump, a motor. A main line has a suction chamber between a connection to a spray opening and a pump and a pressure chamber between the pump and the spray opening which are fluidically connected via a bypass line. To regulate the pressure in the pressure chamber, a free cross-sectional surface of the bypass line is adjustable. A switch-off unit causes, as a result of the pressure prevailing in the pressure chamber, that the motor is in the off-state if the pressure chamber pressure corresponds at least to a pressure threshold. A pressure build-up valve is arranged in the bypass line reducing the free cross-sectional surface of the bypass line to such an extent when a volume threshold of flow through the bypass line is exceeded, the pressure in the pressure chamber corresponds at least to the pressure threshold.
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公开(公告)号：US20240207902A1
公开(公告)日：2024-06-27
申请号：US18393299
申请日：2023-12-21
发明人： Simon Trinkle , Michael Renz , Christopher Tost
IPC分类号： B08B3/02
CPC分类号： B08B3/028 , B08B2203/0205 , B08B2203/0217 , B08B2203/027
摘要： A pressure washer has a connection for a source of liquid; a high pressure pump; a main line by way of which liquid via the high pressure pump is conveyable from the connection to a spray opening of the main line; and a supplemental pump for adding an additive to the liquid. The pressure washer is conceived in such a way that the additive by way of the supplemental pump is able to be fed to the main line upstream of the high pressure pump.
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公开(公告)号：US20240200620A1
公开(公告)日：2024-06-20
申请号：US18391101
申请日：2023-12-20
IPC分类号： F16D49/08
CPC分类号： F16D49/08
摘要： A handheld work apparatus includes a tool and a brake unit for the tool. The brake unit includes a brake band and a brake drum. The brake band wraps around the brake drum. The brake unit is configured such that, during braking, a friction surface of the brake band is in contact with a friction surface of the brake drum, with the result that the brake band and the brake drum form friction partners. At least one of the friction surfaces is configured before a first braking operation on a wear layer, the thickness of the wear layer being from 0.5 μm to 3 μm or the thickness of the wear layer being from above 3 μm to 20 μm, and the wear layer containing Fe2O3 and/or FeO.
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公开(公告)号：US11980138B2
公开(公告)日：2024-05-14
申请号：US17192214
申请日：2021-03-04
发明人： Markus Oesterle , Jonathan Seiz , Mario Kuschewski
摘要： A hand-held treatment system includes: a hand-held treatment device and at least one attachment, wherein the treatment device has a movable treatment part and an electric drive motor system for moving the treatment part. The electric drive motor system has at least one electrical path with at least one interruption. The at least one attachment has a contact bridge. The treatment device and the at least one attachment are configured for the spatial arrangement of the at least one attachment from a hazard position into a safety position, which is different from the hazard position, on the treatment device such that by the at least one attachment being in the hazard position, the at least one contact bridge does not electrically bridge the at least one interruption, and by the arrangement of the at least one attachment in the safety position, the at least one contact bridge electrically bridges the at least one interruption.
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公开(公告)号：US11976587B2
公开(公告)日：2024-05-07
申请号：US18455376
申请日：2023-08-24
IPC分类号： F02B33/04 , F02B25/00 , F02B33/30 , F02D9/02 , F02F1/22 , F02F3/24 , F02M35/10 , F02M61/14 , F02B75/02
CPC分类号： F02B33/04 , F02B25/00 , F02B33/30 , F02D9/02 , F02F1/22 , F02F3/24 , F02M35/1019 , F02M61/14 , F02B2075/025
摘要： A two-stroke engine includes a cylinder having a combustion chamber. The combustion chamber is delimited by a piston guided in a reciprocating manner in the cylinder and drives a crankshaft. A first intake channel opens into the crankcase interior. A transfer channel opens into the crankcase interior via a transfer window on a cylinder bore of the cylinder and via a passage opening. A second intake channel is provided for supplying scavenging air to the transfer channel. The first intake channel and the second intake channel are configured for supplying air. An injection valve configured for injecting the entire quantity of fuel to be supplied to the engine directly into the crankcase interior is disposed on the crankcase. A method for operating a two-stroke engine provides that the entire quantity of fuel to be supplied to the engine via a metering installation is supplied directly to the crankcase interior.
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公开(公告)号：US11960265B2
公开(公告)日：2024-04-16
申请号：US17100215
申请日：2020-11-20
发明人： Michael Kaiser , Andre Vaas , Kay-Steffen Gurr
IPC分类号： G05B19/4065
CPC分类号： G05B19/4065 , G05B2219/32118
摘要： A method adapts an apparatus to a motor-driven tool from a set of different types of motor-driven tools. The apparatus is arranged on the tool. The method has the steps of: capturing an identifier of the tool by way of the apparatus, and transmitting an item of type-specific configuration information from a database to the apparatus on the basis of the captured identifier in such a manner that the apparatus is designed to process operating data of the tool in a type-specific manner.
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公开(公告)号：US11925140B2
公开(公告)日：2024-03-12
申请号：US17001734
申请日：2020-08-25
发明人： Achim Rethaber
IPC分类号： A01D34/46 , A01D34/416
CPC分类号： A01D34/4161 , A01D34/4165 , A01D34/46
摘要： A trimmer line cutting head has a trimmer line spool rotatably supported about an axis of rotation and disposed slidably between housing and housing cover along the axis of rotation. A spring element pretensions the trimmer line spool in an operating position of the trimmer line cutting head. An indexing device has a terminal stop connecting the trimmer line spool in the operating position to the housing in fixed connection for common rotation of trimmer line spool and housing. By applying an actuating force to the indexing device, the trimmer line spool is adjustable from the operating position axially into an inoperative state of the trimmer line cutting head for paying out trimmer line. The indexing device has a rotational stop formed in a slot in a wall of the trimmer line spool and limiting rotation of the trimmer line spool relative to the housing in the inoperative state.
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公开(公告)号：US11877542B2
公开(公告)日：2024-01-23
申请号：US17464210
申请日：2021-09-01
IPC分类号： A01G20/47 , H01M50/247 , F04D19/00 , F04D25/06 , A47L5/14
CPC分类号： A01G20/47 , F04D19/002 , F04D25/06 , H01M50/247 , A47L5/14 , H01M2220/30
摘要： A backpack blower has a backpack with a load-bearing frame, a blower tube with a backpack-side tube section which is held on a rear side of the load-bearing frame, and a hand-side tube section which extends past a first side region of the load-bearing frame, a drive motor, an energy source for the drive motor, and an axial fan which is driven by the drive motor, has an axial fan axis, and is arranged in the backpack-side tube section of the blower tube. The backpack-side tube section of the blower tube runs with a main direction component in a backpack transverse direction of the load-bearing frame and has an axial blower tube end termination which projects laterally beyond a second side region of the load-bearing frame, which second side region faces away from the first side region, and/or is surrounded at least on a part of its circumference by a protective ring element which is connected to the load-bearing frame. The blower may be an electric leaf blower.
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公开(公告)号：US20240009827A1
公开(公告)日：2024-01-11
申请号：US18348154
申请日：2023-07-06
IPC分类号： B25F5/02
CPC分类号： B25F5/02
摘要： A handheld electric tool has a housing having a receptacle for arranging a replaceable battery pack. The battery pack includes an insertion section and a grip section and can be inserted along an insertion axis into the receptacle. The receptacle includes an insertion receiving region formed to be compatible with the insertion section of the battery pack and a grip section receiving region. The insertion section of the battery pack when inserted into the receptacle is arranged within an outer wall of the housing. The grip section of the battery pack when inserted into the receptacle is arranged outside the outer wall of the housing. The outer wall delimits the grip section receiving region in a first section and in a second section in a radial direction with respect to the insertion axis. A system includes a handheld electric tool and a battery pack.
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