Patents by Inventor Osamu Kisanuki
Osamu Kisanuki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11063410Abstract: A switchgear includes: a tank having a first through hole; a fixed contact in the tank; a movable contact capable of reciprocating between a position in contact with the fixed contact and a position separated from the fixed contact; and an operating rod capable of reciprocating in a direction parallel to the direction of movement of the movable contact, and penetrating through the first through hole. The switchgear further includes: a connecting plate connecting the movable contact and the operating rod; a shielding plate disposed closer to the fixed contact than the connecting plate, having a second through hole through which the operating rod penetrates and a third through hole through which the movable contact is capable of passing formed therein; a first bearing disposed in the first through hole to support the operating rod; and a second bearing disposed in the second through hole to support the operating rod.Type: GrantFiled: June 23, 2017Date of Patent: July 13, 2021Assignee: MITSUBISHI ELECTRIC CORPORATIONInventor: Osamu Kisanuki
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Publication number: 20210151963Abstract: A switchgear includes: a tank having a first through hole; a fixed contact in the tank; a movable contact capable of reciprocating between a position in contact with the fixed contact and a position separated from the fixed contact; and an operating rod capable of reciprocating in a direction parallel to the direction of movement of the movable contact, and penetrating through the first through hole. The switchgear further includes: a connecting plate connecting the movable contact and the operating rod; a shielding plate disposed closer to the fixed contact than the connecting plate, having a second through hole through which the operating rod penetrates and a third through hole through which the movable contact is capable of passing formed therein; a first bearing disposed in the first through hole to support the operating rod; and a second bearing disposed in the second through hole to support the operating rod.Type: ApplicationFiled: June 23, 2017Publication date: May 20, 2021Applicant: Mitsubishi Electric CorporationInventor: Osamu KISANUKI
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Patent number: 9646778Abstract: An operating device for a disconnector includes a drive unit, a Geneva mechanism, and a wire. The drive unit includes a forwardly and reversely rotatable motor serving as a drive source for driving a movable contactor of the disconnector, a power source supplying power to the motor, and a first pulley connected to a rotary shaft of the motor, and is disposed apart from the disconnector. The Geneva mechanism includes a second pulley that rotates in the same direction as the first pulley with the rotation of the first pulley, and a driven wheel that is intermittently driven while the second pulley rotates and that is provided with a rotary shaft connected to the movable contactor, and is attached to the disconnector apart from the drive unit. Further, as a flexible rotational force transmission member, a wire is stretched between the second pulley and the first pulley.Type: GrantFiled: January 21, 2014Date of Patent: May 9, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Shogo Kobayashi, Yosuke Kuruma, Tsuyoshi Mori, Osamu Kisanuki
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Publication number: 20160268069Abstract: An operating device for a disconnector includes a drive unit, a Geneva mechanism, and a wire. The drive unit includes a forwardly and reversely rotatable motor serving as a drive source for driving a movable contactor of the disconnector, a power source supplying power to the motor, and a first pulley connected to a rotary shaft of the motor, and is disposed apart from the disconnector. The Geneva mechanism includes a second pulley that rotates in the same direction as the first pulley with the rotation of the first pulley, and a driven wheel that is intermittently driven while the second pulley rotates and that is provided with a rotary shaft connected to the movable contactor, and is attached to the disconnector apart from the drive unit. Further, as a flexible rotational force transmission member, a wire is stretched between the second pulley and the first pulley.Type: ApplicationFiled: January 21, 2014Publication date: September 15, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shogo KOBAYASHI, Yosuke KURUMA, Tsuyoshi MORI, Osamu KISANUKI
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Patent number: 8675350Abstract: A gas insulated switchgear includes: a center conductor that is arranged to extend horizontally in a tank; a cylindrical member that is arranged in the tank to surround a center conductor, and formed by curving a metal plate-like member into a cylindrical shape and then joining circumferentially opposed both ends of the plate-like member by welding to form a welding portion, the welding portion being located on a lower side of the cylindrical member; and a current transformer for instruments, through which the cylindrical member is inserted, the current transformer being supported by the cylindrical member, and being arranged to surround the center conductor. The welding portion includes a metal spacer sandwiched between the circumferentially opposed both ends of the plate-like member, and the spacer and the ends are welded to each other.Type: GrantFiled: April 5, 2011Date of Patent: March 18, 2014Assignee: Mitsubishi Electric CorporationInventors: Osamu Kisanuki, Takashi Miyamoto, Takao Tsurimoto, Manabu Yoshimura
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Patent number: 8605412Abstract: A gas insulated switchgear is configured including phase-A, phase-B, and phase-C breaker units. For example, the phase-A breaker unit includes breakers connected in series in a horizontal first direction, disconnectors annexed on the breaker, disconnectors annexed on a breaker, and disconnectors annexed on a breaker. The disconnector is connected to a main bus that extends in the first direction, and the disconnector is connected to a main bus that extends in the first direction. Each of the disconnectors on the breakers is arranged while a longitudinal direction thereof is set to a second direction orthogonal to the first direction so that a switching direction of the disconnector is equal to the second direction. Thereby, the length of the main buses can be shortened, and an interphase distance and a breaker-to-breaker distance can be reduced.Type: GrantFiled: October 5, 2009Date of Patent: December 10, 2013Assignee: Mitsubishi Electric CorporationInventors: Shinichiro Nakauchi, Osamu Kisanuki
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Patent number: 8519293Abstract: In a gas-insulated power apparatus in which contiguous vessels 11, 12 (GIBC1, GIBC2) are coupled by way of flanges 111, 121 of respectives thereof, and power conductors 112, 122 (GIBC5) insulated from the vessels by an insulating gas 13 are included in the vessels, by squeezing the flange 111 of the vessel on one side to be coupled by a pressing member 14 screwed to the flange 121 of the vessel on other side and the flange 121 of the vessel on other side, positions of the vessel on one side and the vessel on other side coupled as described above relative to each other can be shifted in a peripheral direction of the flange, and therefore, even when a direction of leading out a gas-insulated bus or the like becomes various depending on products, various directions can be dealt with out depending only on design of respective product specifications.Type: GrantFiled: March 31, 2006Date of Patent: August 27, 2013Assignee: Mitsubishi Electric CorporationInventors: Osamu Kisanuki, Hitoshi Sadakuni
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Patent number: 8254088Abstract: It is an object to provide gas-insulated switchgear that occupies less installation space, in which the number of bellows to be used can be reduced, and that can minimize a work range in disassembling at addition or accident, and in reassembling. In double-bus gas-insulated switchgear in which a bus-side device is arranged above a breaker to reduce installation space to be occupied, a bellows is arranged between bus-side devices arranged vertically to each other, and under a support frame of the breaker, another support frame that can be separated therefrom is arranged, thereby enabling disassembling of a lower bus-side device alone.Type: GrantFiled: December 28, 2007Date of Patent: August 28, 2012Assignee: Mitsubishi Electric CorporationInventors: Masahito Tanaka, Osamu Kisanuki
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Publication number: 20120175971Abstract: A gas insulated switchgear is configured including phase-A, phase-B, and phase-C breaker units. For example, the phase-A breaker unit includes breakers connected in series in a horizontal first direction, disconnectors annexed on the breaker, disconnectors annexed on a breaker, and disconnectors annexed on a breaker. The disconnector is connected to a main bus that extends in the first direction, and the disconnector is connected to a main bus that extends in the first direction. Each of the disconnectors on the breakers is arranged while a longitudinal direction thereof is set to a second direction orthogonal to the first direction so that a switching direction of the disconnector is equal to the second direction. Thereby, the length of the main buses can be shortened, and an interphase distance and a breaker-to-breaker distance can be reduced.Type: ApplicationFiled: October 5, 2009Publication date: July 12, 2012Applicant: Mitsubishi Electric CorporationInventors: Shinichiro Nakauchi, Osamu Kisanuki
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Patent number: 8189323Abstract: A gas-insulated switchgear apparatus includes a center conductor 2, a current transformer 4 surrounding the center conductor 2, an electric field shield 5, and a metallic vessel 1. The electric field shield 5 is located between the center conductor 2 and the current transformer 4 and surrounds the center conductor 2. The current transformer 4 and the electric field shield 5 constitute a tubular part that outputs a signal representing an electric physical quantity. The metallic vessel 1 is filled with an insulating gas 19. The tubular part has an opening 6 formed therein. In a posture in which the center axis of the tubular part about which the tubular part surrounds the center conductor 2 is substantially horizontal, the opening 6 is located in a surface of the tubular part, which surface is included in a lower portion of the tubular part and faces the center conductor 2.Type: GrantFiled: December 1, 2009Date of Patent: May 29, 2012Assignee: Mitsubishi Electric CorporationInventors: Takao Tsurimoto, Takashi Miyamoto, Manabu Yoshimura, Osamu Kisanuki, Yoshinori Shimizu
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Patent number: 8173896Abstract: A fluid-insulated electrical apparatus includes a grounded tank which is an airtight metal vessel filled with an insulating fluid. A conductor to which a high voltage is applied is disposed in the grounded tank. A metal plate that is press-processed to have an inclined portion and a groove between adjacent head top portions is fixed to and electrically connected to an inner wall of the grounded tank.Type: GrantFiled: July 20, 2009Date of Patent: May 8, 2012Assignee: Mitsubishi Electric CorporationInventors: Takashi Miyamoto, Takao Tsurimoto, Manabu Yoshimura, Yoshinori Shimizu, Osamu Kisanuki
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Patent number: 8089020Abstract: [Object] A compact gas-insulated switching apparatus in which the space for arranging a gas breaker module may be reduced, and the space for arranging a circuit wiring may be reduced in the vertical direction is proposed.Type: GrantFiled: September 19, 2007Date of Patent: January 3, 2012Assignee: Mitsubishi Electric CorporationInventors: Osamu Kisanuki, Hitoshi Sadakuni, Masato Kawahigashi
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Publication number: 20110299227Abstract: A gas insulated switchgear includes: a center conductor that is arranged to extend horizontally in a tank; a cylindrical member that is arranged in the tank to surround a center conductor, and formed by curving a metal plate-like member into a cylindrical shape and then joining circumferentially opposed both ends of the plate-like member by welding to form a welding portion, the welding portion being located on a lower side of the cylindrical member; and a current transformer for instruments, through which the cylindrical member is inserted, the current transformer being supported by the cylindrical member, and being arranged to surround the center conductor. The welding portion includes a metal spacer sandwiched between the circumferentially opposed both ends of the plate-like member, and the spacer and the ends are welded to each other.Type: ApplicationFiled: April 5, 2011Publication date: December 8, 2011Applicant: Mitsubishi Electric CorporationInventors: Osamu KISANUKI, Takashi Miyamoto, Takao Tsurimoto, Manabu Yoshimura
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Patent number: 7990687Abstract: A gas-insulated switchgear includes an electric conductor that is housed in a vessel that is sealed and filled with insulating gas, a current transformer that is housed in the vessel, which includes a coil wound around the electric conductor, an electric-field relaxing shield that is arranged in the vessel at a radially inward position relative to an inner side of the coil, and a dielectric insulating member that is arranged on an end portion of the electric-field relaxing shield.Type: GrantFiled: October 7, 2009Date of Patent: August 2, 2011Assignee: Mitsubishi Electric CorporationInventors: Manabu Yoshimura, Takao Tsurimoto, Osamu Kisanuki, Yoshinori Shimizu
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Publication number: 20100265635Abstract: A gas-insulated switchgear includes an electric conductor that is housed in a vessel that is sealed and filled with insulating gas, a current transformer that is housed in the vessel, which includes a coil wound around the electric conductor, an electric-field relaxing shield that is arranged in the vessel at a radially inward position relative to an inner side of the coil, and a dielectric insulating member that is arranged on an end portion of the electric-field relaxing shield.Type: ApplicationFiled: October 7, 2009Publication date: October 21, 2010Applicant: Mitsubishi Electric CorporationInventors: Manabu Yoshimura, Takao Tsurimoto, Osamu Kisanuki, Yoshinori Shimizu
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Publication number: 20100259870Abstract: It is an object to provide gas-insulated switchgear that occupies less installation space, in which the number of bellows to be used can be reduced, and that can minimize a work range in disassembling at addition or accident, and in reassembling. In double-bus gas-insulated switchgear in which a bus-side device is arranged above a breaker to reduce installation space to be occupied, a bellows is arranged between bus-side devices arranged vertically to each other, and under a support frame of the breaker, another support frame that can be separated therefrom is arranged, thereby enabling disassembling of a lower bus-side device alone.Type: ApplicationFiled: December 28, 2007Publication date: October 14, 2010Applicant: Mitsubishi Electric CorporationInventors: Masahito Tanaka, Osamu Kisanuki
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Publication number: 20100206615Abstract: A fluid-insulated electrical apparatus includes a grounded tank which is an airtight metal vessel filled with an insulating fluid. A conductor to which a high voltage is applied is disposed in the grounded tank. A metal plate that is press-processed to have an inclined portion and a groove between adjacent head top portions is fixed to and electrically connected to an inner wall of the grounded tank.Type: ApplicationFiled: July 20, 2009Publication date: August 19, 2010Applicant: Mitsubishi Electric CorporationInventors: Takashi MIYAMOTO, Takao TSURIMOTO, Manabu YOSHIMURA, Yoshinori SHIMIZU, Osamu KISANUKI
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Publication number: 20100134957Abstract: A gas-insulated switchgear apparatus includes a center conductor 2, a current transformer 4 surrounding the center conductor 2, an electric field shield 5, and a metallic vessel 1. The electric field shield 5 is located between the center conductor 2 and the current transformer 4 and surrounds the center conductor 2. The current transformer 4 and the electric field shield 5 constitute a tubular part that outputs a signal representing an electric physical quantity. The metallic vessel 1 is filled with an insulating gas 19. The tubular part has an opening 6 formed therein. In a posture in which the center axis of the tubular part about which the tubular part surrounds the center conductor 2 is substantially horizontal, the opening 6 is located in a surface of the tubular part, which surface is included in a lower portion of the tubular part and faces the center conductor 2.Type: ApplicationFiled: December 1, 2009Publication date: June 3, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takao TSURIMOTO, Takashi MIYAMOTO, Manabu YOSHIMURA, Osamu KISANUKI, Yoshinori SHIMIZU
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Publication number: 20090266796Abstract: In a gas-insulated power apparatus in which contiguous vessels 11, 12 (GIBC1, GIBC2) are coupled by way of flanges 111, 121 of respectives thereof, and power conductors 112, 122 (GIBC5) insulated from the vessels by an insulating gas 13 are included in the vessels, by squeezing the flange 111 of the vessel on one side to be coupled by a pressing member 14 screwed to the flange 121 of the vessel on other side and the flange 121 of the vessel on other side, positions of the vessel on one side and the vessel on other side coupled as described above relative to each other can be shifted in a peripheral direction of the flange, and therefore, even when a direction of leading out a gas-insulated bus or the like becomes various depending on products, various directions can be dealt with out depending only on design of respective product specifications.Type: ApplicationFiled: March 31, 2006Publication date: October 29, 2009Applicant: Mitsubishi Electric CorporationInventor: Osamu Kisanuki
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Publication number: 20090261069Abstract: [Object] A compact gas-insulated switching apparatus in which the space for arranging a gas breaker module may be reduced, and the space for arranging a circuit wiring may be reduced in the vertical direction is proposed.Type: ApplicationFiled: September 19, 2007Publication date: October 22, 2009Applicant: Mitsubishi Electric CorporationInventors: Osamu Kisanuki, Hitoshi Sadakuni, Masato Kawahigashi