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公开(公告)号：US20230250592A1
公开(公告)日：2023-08-10
申请号：US18299932
申请日：2023-04-13
申请人： Braskem S.A.
发明人： Guilherme Longa Nose , Daniel Wenzer Trevizan , Luiz Francisco Muniz da Silva , Jorge Luís Goudene Spada , Cláudio Pereira da Silva Zamith , Walter Vidon Júnior , Renato Teixeira Vargas
摘要： A railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network is provided, including a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by including a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). An embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper is also provided.
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公开(公告)号：US11649592B2
公开(公告)日：2023-05-16
申请号：US16891102
申请日：2020-06-03
申请人： Braskem S.A.
发明人： Guilherme Longa Nose , Daniel Wenzer Trevizan , Luiz Francisco Muniz da Silva , Jorge Luis Goudene Spada , Claudio Pereira da Silva Zamith , Walter Vidon Junior , Renato Teixeira Vargas
摘要： A railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network is disclosed, including a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by including a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). An embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper is also disclosed.
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公开(公告)号：US10704204B2
公开(公告)日：2020-07-07
申请号：US15525693
申请日：2015-11-11
申请人： Braskem S.A.
发明人： Guilherme Longa Nose , Daniel Wenzer Trevizan , Luiz Francisco Muniz da Silva , Jorge Luis Goudene Spada , Claudio Pereira da Silva Zamith , Walter Vidon Junior , Renato Teixeira Vargas
IPC分类号： E01B3/46 , B29C48/21 , B29C48/03 , B29C48/88 , E01B3/44 , B29C48/00 , B29K23/00 , B29K509/08
摘要： The present invention describes a railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network, comprising a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by comprising a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). The present invention further describes an embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper.
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公开(公告)号：US20230228041A1
公开(公告)日：2023-07-20
申请号：US18007874
申请日：2021-06-02
申请人： Braskem S.A.
发明人： Guilherme Longa Nose , Daniel Wenzer Trevizan , Luiz Francisco Muniz da Silva , Jorge Luís Goudene Spada , Cláudio Pereira da Silva Zamith , Walter Vidon Júnior , Renato Teixeira Vargas
IPC分类号： E01B3/46
CPC分类号： E01B3/46
摘要： It is described a railroad sleeper for fastening at least one pair of rails (2.2′) of 5 a railway network, the railroad sleeper (1) comprising a contact surface (3) on which each rail of the pair of rails (2.2′) is spaced fixed in relation to each other, the railway sleeper (1) comprising a hollow sector (4) delimited from the association of the contact surface (3) with anchorage walls (5.5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and 10 opposite the contact surface (3), wherein the railroad sleeper (1, 1′) is manufactured from a composition comprising bending module greater than or equal to 5000 MPa.
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公开(公告)号：US20210180261A1
公开(公告)日：2021-06-17
申请号：US16891102
申请日：2020-06-03
申请人： Braskem S.A.
发明人： Guilherme Longa Nose , Daniel Wenzer Trevizan , Luiz Francisco Muniz da Silva , Jorge Luis Goudene Spada , Claudio Pereira da Silva Zamith , Walter Vidon Junior , Renato Teixeira Vargas
摘要： The present invention relates to a railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network, comprising a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by comprising a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). The present invention further discloses an embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper.
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