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1.发明授权
公开(公告)号：US5109777A
公开(公告)日：1992-05-05
申请号：US564620
申请日：1990-08-09
申请人： Keiji Ohmura , Sumio Okuno , Michifumi Takeichi , Kentarou Masai , Seiichi Okamoto , Masatake Nakamura
发明人： Keiji Ohmura , Sumio Okuno , Michifumi Takeichi , Kentarou Masai , Seiichi Okamoto , Masatake Nakamura
CPC分类号： B61D17/04 , B61D17/08 , Y02T30/34 , Y10T403/65 , Y10T403/66
摘要： A car body for railway rolling stock wherein a plurality of outside plates forming the car body are joined to frame members of the car body by spot welding. The outside plates are produced of a ferrous material except for stainless steel and a film or coating is provided on an outside surface of the outside plates. By virtue of the joining of the outside plates to the frame members and the joining of the outside plates to each other by spot welding, less input heat is required as compared with a continuous welding; therefore, outside plate distortion can be reduced and time and labor for manufacturing of the car body can be reduced. Moreover, since the outside plates are produced of a ferrous material, the painting of the outside surfaces of the outside plates can easily be accomplished.
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公开(公告)号：US4758686A
公开(公告)日：1988-07-19
申请号：US52647
申请日：1987-05-20
摘要： In a building in which electromagnetic shielding members are used in a body of the building and at openings such as windows, entrances and exits to provide the overall building with electromagnetic shielding, a window glass and a window frame are each provided with an electromagnetic shielding body formed so as to be electrically integrated with a grounded connection of a building structure. This enables the window openings to be provided with an electromagnetic shielding effect through simple construction work irrespective of the structure, shape and material of the window opening. Further, an earth bond is obtained between a sash frame and iron rods for reinforcing the concrete of the building body. This makes it possible to ground the sash frame in a simple manner without exposing it, and to obtain an electromagnetic shielding effect, merely by providing the earth bond between the reinforcing rods and sash frame before the concrete is poured.
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公开(公告)号：US4932180A
公开(公告)日：1990-06-12
申请号：US332198
申请日：1989-04-03
CPC分类号： H05K9/0001 , E04B1/92
摘要： In a building having electromagnetically shielded sections formed by using electromagnetic shielding members as structural members for outer walls, floors an so forth, a zone partitioned with a bearing wall structure having walls such as a fire wall (12) reaching a floor slab is formed as a unit of the electromagnetically shielded space, thereby eliminating the need for an additional process of forming a rising portion or a partition formed on a partition wall formed below a double-ceiling. At the connection between the floor slab and the wall, a space formed therebetween is filled with asbestos (42), and the floor slab and the wall are integrally connected electrically, and a space between a column (51) and a floor decking plate (52) is covered with a shielding plate (54) while the floor slab is fabricated in an ordinary manner, thus forming electromagnetically shielded sections. A core 104 is disposed between office rooms (102, 103), and doors in the partition wall provided between these rooms are formed with an electromagnetic shielding structure so that an electromagnetically shielded zone is formed for each room by shutting off propagation of noises from the core section and preventing interference between electric waves used in adjacent stories.
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公开(公告)号：US4978812A
公开(公告)日：1990-12-18
申请号：US288278
申请日：1988-12-22
IPC分类号： H05K9/00
CPC分类号： B32B17/10036 , H05K9/00
摘要： An electromagnetic wave shielding transparent body comprising one or more transparent sheets, a transparent conductive layer formed as a first electric conductor on at least one of said transparent sheets, and a second electric conductor separated from said transparent conductive layer.
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公开(公告)号：US4810961A
公开(公告)日：1989-03-07
申请号：US195052
申请日：1988-05-17
CPC分类号： H04B15/00 , G01R29/0835
摘要： Disclosed is a radio wave leakage diagnosing system for use in an intelligent building which is constructed using an electromagnetic shielding material for the skeleton and openings such as windows and doorways so that the whole of the building is formed into an electromagnetic shielding structure. The system has a radio wave detector disposed outside the building for detecting a predetermined radio wave transmitted from each floor of the building, so that a floor, togethere with a specific position, where there is a leakage of radio wave is detected on the basis of the intensity of the detected radio wave. With this arrangement, a predetermined radio wave is transmitted from each floor of the building and the transmitted radio wave is detected by the radio wave detector. Accordingly, the degree at which the radio wave leaks from each floor can be checked on the basis of the intensity of the received radio wave, and when the electromagnetic shielding is broken, the floor and specific position where the shielding abnormality occurs can be found on the basis of the intensity of the received radio wave. When the electromagnetic shielding performance has deteriorated, it is possible to know the degree of deterioration by making a comparison with the diagnostic results obtained in the past.
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公开(公告)号：US5422174A
公开(公告)日：1995-06-06
申请号：US106290
申请日：1993-08-13
CPC分类号： H05K9/0001 , C04B14/386 , C04B28/02 , C04B2111/00258 , C04B2111/00612 , C04B2111/94 , Y10T428/239 , Y10T428/249932 , Y10T428/249994
摘要： An electromagnetic wave shielding building material is disclosed, the building material comprising an electrically conductive concrete which has electromagnetic wave shielding properties and comprises a hydraulic inorganic material and carbon fibers of 0.6-3% by weight. It is possible to easily produce the building material having good electromagnetic wave shielding functions at low cost.
摘要翻译： 公开了一种电磁波屏蔽建筑材料，该建筑材料包括具有电磁波屏蔽性能的导电混凝土，并包含0.6-3％重量的水硬性无机材料和碳纤维。 可以容易地以低成本生产具有良好的电磁波屏蔽功能的建筑材料。
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7.发明授权Electromagnetic shield-type doorway for buildings and electromagnetic shielding system therefor 失效用于建筑物的电磁屏蔽式门口及其电磁屏蔽系统
公开(公告)号：US4894489A
公开(公告)日：1990-01-16
申请号：US52635
申请日：1987-05-20
CPC分类号： H05K9/0003 , E06B5/18
摘要： An electromagnetic shield-type doorway for a building is provided with two doors having a curved passageway between them. By lengthening the passageway to such an extent that the two doors cannot be opened simultaneously, electric waves can be blocked at either of the doors. The electromagnetic shielding effect can be enhanced by installing a revolving door in the passageway and attaching electrically conductive brushes to at least the lower edge and one side edge of the revolving door to fill the gaps at these edges. In a system for electromagnetically shielding a building, a doorway passageway of the building is partitioned by three or more doorways each having an electromagnetic shielding function. When persons leaving and exiting a building simultaneously approach entrance and exit doors at the ends of the doorway passageway so that these doors open at the same time, the central doorway remains closed to maintain the integrity of the electromagnetic shield. If a large number persons are entering and exiting, the doors are opened and closed in an interlocked manner so that one of the three doorways will always be closed, thereby maintaining the integrity of the shield in reliable fashion without hampering entry and exit.
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公开(公告)号：US4889958A
公开(公告)日：1989-12-26
申请号：US60297
申请日：1987-06-10
CPC分类号： E04B1/92 , H04B15/00 , H05K9/0001
摘要： A building with an electromagnetic shield structure for individual floors uses an electromagnetic shielding material in a body of the building and in openings such as windows and doorways, and the external wall surface of the building is covered with an electromagnetic shielding layer. An electromagnetically shielded space within the building is divided into individual floors by floor partitions using an electromagnetic shielding material. Wireless communication utilizing electric waves is carried out within the building, with the same frequency band or any desired frequency band being allotted to each floor. With the above arrangement, sets of communications equipment using the same frequency band on one floor can communicate with one another without interfering with sets on another floor, even though the sets of equipment on the other floors use the same frequency band. Accordingly, by installing sets of communications equipment of a fixed frequency band irrespective of the number of floors in the building, information can be communicated freely within the building.
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9.发明授权
公开(公告)号：US4814694A
公开(公告)日：1989-03-21
申请号：US195053
申请日：1988-05-17
CPC分类号： G01R29/0835
摘要： Disclosed is a system for detecting and processing an abnormality in electromagnetic shielding for use in an intelligent building which is constructed using an electromagnetic shielding material for the skeleton and openings such as windows and doorways so that the whole of the building is formed into an electromagnetic shielding structure in order to carry out radio communication inside the building. The system has radio wave detecting means for detecting an external radio wave inside the building, level judging means for judging the level of an external radio wave detected by the radio wave detecting means, and processing means for detecting and processing an abnormality on the basis of an output from the level judging means, whereby an abnormality in the electromagnetic shielding performance is detected on the basis of the intensity level of a detected radio wave intruding into the building from the outside. When the electromagnetic shielding performance has deteriorated, external radio waves such as broadcast waves, telecast waves, etc. intrude into the building. Therefore, any of these radio waves is constantly monitored by the radio wave detecting means inside the building. Thus, when the electromagnetic shielding performance has considerably deteriorated, the abnormality can be detected by judging the level of the detected radio wave with the level judging means.
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