公开(公告)号：US11795627B2

公开(公告)日：2023-10-24

申请号：US17087217

申请日：2020-11-02

申请人： L B. Foster Company

发明人： Robert L. Alsop ,  Sheenfar S Fong ,  Korhan Ciloglu

IPC分类号： E01B9/42 ,  E01B9/68

CPC分类号： E01B9/42 ,  E01B9/681

摘要： A direct fixation fastener comprising: a top plate; a bottom plate made of metal structural channel providing two spaced-apart side walls, wherein the bottom plate has a first end and a second end and wherein each of the first and second ends terminate in a first flat edge section and a second flat edge section, respectively, without spaced-apart side walls; first and second angle bars, wherein the first angle bar is attached to the first flat edge section and the second angle bar is attached to the second flat edge section; and an elastomeric layer disposed between the top plate and the bottom plate, between the top plate and angle bars and between the angle bars and the spaced-apart side walls.

公开(公告)号：US10519610B2

公开(公告)日：2019-12-31

申请号：US15690002

申请日：2017-08-29

申请人： L. B. Foster Company

发明人： Korhan Ciloglu ,  William Mohr ,  David Workman

IPC分类号： E01B11/56 ,  E01B11/44

摘要： A railroad rail comprising a rail head, wherein the rail head is made from a first material and defines a void, and an insert comprising a second material installed in the void.

公开(公告)号：USD756844S1

公开(公告)日：2016-05-24

申请号：US29449487

申请日：2013-03-15

申请人： L. B. Foster Company

设计人： Scott Almes ,  Robert Alsop ,  Korhan Ciloglu