US530778A
(en)
*
|
|
1894-12-11 |
|
Timber railroad-tie |
US955645A
(en)
|
1909-05-14 |
1910-04-19 |
Charles R Holden |
Reinforced-concrete tie.
|
US1297828A
(en)
*
|
1918-12-05 |
1919-03-18 |
Ira A Garber |
Railroad-tie.
|
US1365550A
(en)
|
1920-06-24 |
1921-01-11 |
Henry G Schmitt |
Railroad-tie
|
US1720473A
(en)
*
|
1929-02-05 |
1929-07-09 |
George C Habicht |
Railroad tie
|
US1888287A
(en)
|
1929-03-01 |
1932-11-22 |
Sarl La Voie Ferre Moderne |
Ferro-concrete railway sleeper
|
US1824776A
(en)
|
1930-03-11 |
1931-09-29 |
Homer M Hadley |
Railway crosstie
|
US2051619A
(en)
|
1934-03-03 |
1936-08-18 |
Paul M Reis |
Railway track construction
|
US2128530A
(en)
*
|
1936-10-26 |
1938-08-30 |
Charles M Cadman |
Rail fastening construction
|
GB2207693A
(en)
|
1987-08-06 |
1989-02-08 |
Costain Concrete Company Limit |
Concrete railway sleepers
|
US5104039A
(en)
|
1991-02-22 |
1992-04-14 |
Cxt Incorporated |
Railroad tie
|
USD345119S
(en)
*
|
1992-10-26 |
1994-03-15 |
Jay Cox |
Railroad tie with quick lock sockets
|
JPH06272202A
(en)
|
1993-03-18 |
1994-09-27 |
Sekisui Chem Co Ltd |
Sleeper
|
JPH07150501A
(en)
|
1993-09-30 |
1995-06-13 |
Sekisui Chem Co Ltd |
Sleeper
|
US5605282A
(en)
*
|
1994-01-31 |
1997-02-25 |
Snead; William B. |
Tire railroad ties
|
US5569424A
(en)
|
1995-03-09 |
1996-10-29 |
Amour; William E. |
Method and apparatus for recycling waste composite material
|
US5799870A
(en)
*
|
1997-04-21 |
1998-09-01 |
Demer Corporation |
Thermoplastic railroad tie
|
US5886078A
(en)
|
1996-08-13 |
1999-03-23 |
Tietek, Inc. |
Polymeric compositions and methods for making construction materials from them
|
US5789477A
(en)
|
1996-08-30 |
1998-08-04 |
Rutgers, The State University |
Composite building materials from recyclable waste
|
US6247651B1
(en)
*
|
1996-11-06 |
2001-06-19 |
John Marinelli |
Composite railway crosstie, shaped like an I beam
|
US5952072A
(en)
|
1997-06-09 |
1999-09-14 |
Willamette Valley Company |
Method for restoring used railroad ties and the restored railroad ties formed thereby
|
JPH1143901A
(en)
|
1997-07-30 |
1999-02-16 |
Kowa Kasei Kk |
Lateral resistance increase type prestressed concrete sleeper
|
US6021958A
(en)
*
|
1998-02-05 |
2000-02-08 |
Smith; Douglas L. |
Synthetic railroad tie
|
US6045052A
(en)
|
1998-04-02 |
2000-04-04 |
Airboss Of America Corp. |
Rail tie fastening assembly
|
JP2002167701A
(en)
|
2000-12-01 |
2002-06-11 |
Sekisui Chem Co Ltd |
Sleeper
|
BE1014215A3
(en)
|
2001-06-06 |
2003-06-03 |
G S Rand B V B A Fa |
Concrete sleeper used for supporting the rails of a railway track, has vibration damping material protrusions on one side with concrete free spaces in between
|
US20070187522A1
(en)
*
|
2003-11-03 |
2007-08-16 |
Bryan Kirchmer |
Composite railroad tie and method of manufacture
|
US20050156055A1
(en)
*
|
2003-12-18 |
2005-07-21 |
Kenney William S. |
Railroad crosstie formed from recycled rubber tires
|
US7314182B2
(en)
|
2004-04-21 |
2008-01-01 |
Little Michael R |
Extruded railroad tie for use with steel tie
|
JP2006328731A
(en)
|
2005-05-25 |
2006-12-07 |
Sekisui Chem Co Ltd |
Sleeper connecting structure
|
NL1032687C2
(en)
*
|
2006-10-16 |
2008-04-22 |
Lankhorst Recycling Products B |
Plastic sleepers, as well as the method for constructing or adapting a railroad.
|
AU2011218074A1
(en)
|
2010-02-17 |
2012-11-15 |
Rutgers The State University Of New Jersey |
Polymer based railroad tie shape designed to reduce center bounding
|
BE1020231A3
(en)
|
2011-10-21 |
2013-06-04 |
Cdm Nv |
ELASTIC SOLE AND CROSS-SLEEP ON WHICH RAIL BARS REST ON A BALLAST BED.
|
NL2010056C2
(en)
*
|
2012-12-24 |
2014-06-25 |
Lankhorst Mouldings B V |
BIELS, AND THE RAILWAY EQUIPPED WITH SUCH BIELS.
|
CN204059107U
(en)
|
2014-07-25 |
2014-12-31 |
北京宝曼科技有限公司 |
A kind of sleeper with replaceable sleeper pad
|
JP2017227117A
(en)
|
2016-06-21 |
2017-12-28 |
東日本旅客鉄道株式会社 |
Sleeper, sleeper laying method, and sleeper manufacturing method
|
CN106638170A
(en)
|
2016-11-24 |
2017-05-10 |
东台市苏中电工机械有限公司 |
Safe and steady railway sleeper
|
CN107460792A
(en)
|
2017-08-15 |
2017-12-12 |
北京交通大学 |
A kind of clad steel sleeper
|