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公开(公告)号：US11458556B2
公开(公告)日：2022-10-04
申请号：US16420292
申请日：2019-05-23
发明人： Wei Cheng Wu
摘要： A hand-held heating tool includes a handle unit, a pivot unit, a positioning unit, and a heating unit. The handle unit has a recess and a positioning portion. The pivot unit is pivotally connected to the handle unit and has a guiding groove and an abutment section. The positioning unit includes a positioning member, a control member, and an elastic member arranged between the control member and the abutment section. The control member is movably arranged in the guiding groove to actuate the positioning member to move relative to the recess so that the positioning member is selectively engaged with the positioning portion for adjusting a relative angle between the handle unit and the heating unit.
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公开(公告)号：US20220235935A1
公开(公告)日：2022-07-28
申请号：US17155377
申请日：2021-01-22
发明人： WEI CHENG WU , CHENG NAN YANG
摘要： A tool includes a barrel, a guiding wire, and an electrically conductive member. The barrel is made of electrically conductive material. The guiding wire is disposed in the barrel. The barrel and the guiding wire are directly or indirectly connected to two opposite electrodes of a power source. The electrically conductive member is connected to an outer periphery of the guiding wire and is electrically connected to the guiding wire. The electrically conductive member is disposed between the barrel and the guiding wire and is spaced from the barrel. When the power source is activated, an electric arc is generated between the electrically conductive member and the barrel.
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公开(公告)号：US20220196236A1
公开(公告)日：2022-06-23
申请号：US17190641
申请日：2021-03-03
发明人： WEI CHENG WU
摘要： A blowtorch includes a casing and a control unit. The control unit includes an activate button and a lock button. The lock button is switchable between a first lock position and an intermediate position, or between the intermediate position and a second lock position. The activate button is switchable between a standby position and an activation position when the lock button is in the intermediate position. The lock button contacts the activate button and restricts the activate button to hold in the activation position when the activate button is in the activation position and the lock button is in the first lock position or the second lock position.
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公开(公告)号：US20220184263A1
公开(公告)日：2022-06-16
申请号：US17382546
申请日：2021-07-22
发明人： WEI CHENG WU
IPC分类号： A61L9/03
摘要： An electric heating fragrance diffuser includes a hollow body and a fragrance diffusing device. A power source and an electric wire are arranged in the body. The fragrance diffusing device includes a fragrance holder, a fragrance box, and an electric heating plate. The fragrance holder is disposed in the body and provided with a first hole communicating with upper and lower edges of the fragrance holder in a vertical direction. The upper edge of the fragrance holder is recessed with a fragrance groove surrounding the first hole. The fragrance box is detachably arranged in the fragrance groove. The electric heating plate is connected to the lower edge of the fragrance holder and provided with a second hole aligned with the first hole.
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公开(公告)号：US11209160B2
公开(公告)日：2021-12-28
申请号：US16424524
申请日：2019-05-29
发明人： Wei Cheng Wu
摘要： A combustion device having a double-layer structure includes a main body, which is double layered, including an inner-layer wall and an outer-layer wall disposed outside of and spaced from the inner-layer wall such that the inner-layer wall and the outer-layer wall include a hollow disposed therebetween. The inner-layer wall forms a fuel receptacle with an opening. A wick has an end defining fuel-drawing end inserted into the fuel receptacle through the opening.
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公开(公告)号：US20210247065A1
公开(公告)日：2021-08-12
申请号：US17239842
申请日：2021-04-26
发明人： WEI CHENG WU
摘要： A flame-resistant wick includes a hollow chamber and at least one capillary structure surrounding the hollow chamber. The at least one capillary structure is interlaced by a plurality of wire strands into a tubular shape. Each of the plurality of wire strands consists of a plurality of core wires made of a material having a melting point of not less than 800° C.
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