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Patent Agency Ranking
公开(公告)号：US11594383B2
公开(公告)日：2023-02-28
申请号：US16982269
申请日：2019-03-05
Inventor： Yoshihisa Fukuda , Shinya Kimoto , Kenji Kanematsu , Kazuhisa Kinoshita , Masato Nakamura
Abstract: A circuit interrupter includes: a first fixed terminal including a first fixed contact; a movable contactor which is formed as a separate part from the first fixed terminal and includes a first movable contact; a holding unit configured to hold the movable contactor so that the first movable contact is connected to the first fixed contact; and a squib configured to generate gas by combustion. In the circuit interrupter, pressure of the gas generated by the squib causes movement of the movable contactor in a direction away from the first fixed terminal so that the first movable contact is separated from the first fixed contact.
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公开(公告)号：US12224142B2
公开(公告)日：2025-02-11
申请号：US18701878
申请日：2023-07-27
Inventor： Masato Nakamura , Shun Ito , Shinya Kimoto
Abstract: This breaker device includes: a casing; an igniter configured to generate gas; a pusher located inside the casing and positioned below the igniter; a conductor including a separating portion positioned below the pusher; and an elastic member disposed to be positioned between the casing and the pusher to press the outer side surface of the pusher. In the state where the pusher is stationary after the pusher moves the separating portion downward under the pressure of the gas generated by the igniter, the pusher is located at a level below the elastic member, and the inner surface of the elastic member overlaps the pusher as viewed from above.
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公开(公告)号：US11264192B2
公开(公告)日：2022-03-01
申请号：US17040398
申请日：2019-03-19
Inventor： Yoshihisa Fukuda , Shinya Kimoto , Kenji Kanematsu , Kazuhisa Kinoshita , Masato Nakamura
Abstract: A circuit interrupter includes a fixed terminal, a movable contactor, a moving mechanism, a squib, and accommodation. The fixed terminal includes a fixed contact. The movable contactor includes a movable contact connected to the fixed contact. The moving mechanism is configured to move the movable contactor from a closed position where the movable contact is connected to the fixed contact to an open position where the movable contact is separated from the fixed contact. The squib is configured to generate gas by combustion. The accommodation is for accommodating the fixed contact and the movable contactor. In the circuit interrupter, the gas is introduced into the accommodation.
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公开(公告)号：US11972917B2
公开(公告)日：2024-04-30
申请号：US17637193
申请日：2020-09-24
Inventor： Masato Nakamura , Shun Ito , Shinya Kimoto , Katsuya Uruma
IPC: H01H39/00
CPC classification number: H01H39/00
Abstract: A disconnect device includes: a conductor connectable to an external conductive path; a housing that has an internal space and accommodates at least a part of the conductor; and a cooling body that is disposed in the internal space and cools an arc generated in the internal space. The cooling body includes a porous body configured with at least one of a metal oxide and an inorganic oxide.
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公开(公告)号：US11929221B2
公开(公告)日：2024-03-12
申请号：US17281056
申请日：2019-09-26
Inventor： Yoshihisa Fukuda , Kazuhisa Kinoshita , Shinya Kimoto , Kenji Kanematsu , Masato Nakamura
IPC: H01H39/00
CPC classification number: H01H39/006
Abstract: An interrupter includes a gas producer, an actuator pin, and an electrical conductor. The electrical conductor includes a first terminal portion, a first separable portion, a second terminal portion, and a second separable portion. The second separable portion is electrically connected to the first separable portion in parallel. A first timing when the first separable portion starts to be cut off from the first terminal portion is earlier than a second timing when the second separable portion starts to be cut off from the second terminal portion.
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