US20120051678A1 - Railroad freight car sidebearing - Google Patents
Railroad freight car sidebearing Download PDFInfo
- Publication number
- US20120051678A1 US20120051678A1 US12/807,226 US80722610A US2012051678A1 US 20120051678 A1 US20120051678 A1 US 20120051678A1 US 80722610 A US80722610 A US 80722610A US 2012051678 A1 US2012051678 A1 US 2012051678A1
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- US
- United States
- Prior art keywords
- base
- side bearing
- spring
- main section
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/14—Side bearings
- B61F5/142—Side bearings made of rubber elements, graphite or the like
Definitions
- the present invention relates to an improved side bearing for mounting on a railway car truck bolster that provides improved control to limit rock and roll characteristics of the railway car in service.
- railway cars 212 , 214 are connected end to end by couplers 216 , 218 .
- Couplers 216 , 218 are each received in draft sills 220 , 222 of each respective car along with cushioning or draft gear assemblies not shown.
- Draft sills 220 , 222 are provided at the end of the railway car center sill, and include center plates that rest in center plate bowls of railway car trucks 226 , 228 .
- each typical car truck 226 includes a pair of side frames 230 , 232 supported on axle-wheel sets 234 , 236 .
- Bolster 238 extends between and is supported on springs 240 mounted on side frames 230 , 232 .
- Bolster center plate 224 includes a central opening 242 .
- Side bearing pads 260 are provided laterally to each side of the center plate 224 on bolster 238 .
- Side frames 230 , 232 comprise a top member 244 , compression member 246 , tension member 248 , column 250 , pedestal 254 , pedestal roof 256 , wheel axle bearings 258 , and bearing adapter 262 .
- Side bearings are commonly used on railroad car trucks. Such side bearings are typically located on the truck bolster such as on side bearing pads 260 , but may be located elsewhere on the bolster.
- Typical side bearing arrangements are designed to control hunting of the railroad car. As a railroad car travels along the railroad track, a yaw excess motion can be induced in the railroad car truck. As the truck yaws, part of the side bearing is made to slide across the underside of a wear plate bolted to the railroad car body bolster. The resulting friction produces an opposing torque that acts to prevent such yaw motion. Another purpose of railroad car truck side bearings is control or limit the rock or roll motion of the car body. Most prior side bearing designs limited vertical travel of the side bearings. The maximum vertical travel of side bearings is specified in the Association of American Railroad Standards. Such vertical travel has limits based on the allowable height of the freight car and the design loading of the freight car.
- a side bearing is provided with improved characteristics to enhance the performance of rail cars with selectable side bearings being available based on the design loading of a freight car.
- One embodiment of a side bearing in accordance with the present invention includes a base having a bottom portion and a base wall structure extending generally upwards therefrom.
- the base wall structure forms a base receiving structure with a generally open centrally located top and a smaller diameter opening in the bottom.
- a spring is positioned in the base receiving structure.
- a base insert is placed in the base receiving structure and provides support for the spring.
- An elastomer spring of a generally cylindrical shape is positioned within the base receiving structure.
- a cap of a generally inverted cup structure has a top portion and a cap wall structure extending generally downward from the top portion.
- the cap wall structure forms the cap receiving structure having an open bottom.
- the top portion of the spring extends into the cap receiving structure open bottom to support the cap.
- the base is usually a unitary cast steel or cast iron structure, but could be fabricated.
- the cap structure is also usually a generally cast steel or cast iron unitary structure, but also in certain embodiments could be fabricated.
- the spring is usually formed of a urethane polymer, or other suitable elastomer.
- the side bearing base insert is usually a unitary structure made of a structural plastic, but could be a metal structure.
- the cap At the standard set-up height of 5.0625 inches (12.8 cm), the cap will be supported by and will preload the elastomer spring for an empty railway car.
- the base insert can be of varying thickness to affect the support height of the bottom of the spring. Depending on the desired load capacity of the freight car, the height of the base insert and compression characteristics of the spring can vary.
- the elastomer spring will have a selected load rating to increase the spring stiffness during further travel downward into or over the base of the side bearing. By limiting such downward travel of the cap, the rock of the railway freight car, especially in an unloaded condition, is kept within preselected design parameters.
- a base insert is provided of varying thickness to support springs of the same height to provide preselected varying load capacities.
- FIG. 1 is a partial schematic of coupled ends of typical railway freight cars
- FIG. 2 is a perspective view of a typical railway car truck
- FIG. 3 is a side assembled view of one embodiment of a side bearing according to the present invention.
- FIG. 4 is a top sectional view of the first embodiment of the assembled side bearing
- FIG. 5 is a cross sectional view of the first embodiment of the assembled side bearing
- FIG. 6 is an exploded view of the first embodiment of the side bearing
- FIG. 7 is a side cross sectional view of the cap of the first embodiment of the side bearing
- FIG. 8 is a side cross sectional view of the base section of the first embodiment of the side bearing.
- FIG. 9 is a side cross sectional view of the spring of the first embodiment of the side bearings.
- FIG. 10 is a side cross sectional view of a first embodiment of a base insert of the side bearing of the present invention.
- FIG. 11 is a side cross sectional view of a second embodiment of a base insert of the side bearing of the present invention.
- FIG. 12 is a side cross section view of a third embodiment of a base insert of the side bearing of the present invention.
- Side bearing 10 includes a base structure 12 , which is comprised of a bottom portion 22 and a base wall 24 extending generally vertically upward therefrom.
- Base structure 12 is usually cast steel or cast iron unitary structure, but can be fabricated or machined as well.
- the shape of base 22 can be circular, somewhat rectangular, or somewhat oval or diamond shaped as the use dictates.
- Cap 14 is seen to be comprised of a top portion 26 with a wall structure 28 extending generally downward from the outer edge of cap 14 .
- cap 14 is usually a cast steel or cast iron unitary structure, but can be fabricated or machined as well.
- Base 12 is seen to also include a base wall top stop surface 38 which is located at the top of base wall 24 .
- cap 14 is seen to include a cap inner stop surface 30 which is formed by an inner surface within cap 14 and is adjacent and complementary to base wall top stop surface 38 .
- An elastomer spring 20 is seen to be formed in a generally cylindrical structure, with a bottom 25 supported on base insert 21 top surface 23 .
- Base insert 21 is a unitary structure, usually comprised of a structural plastic, but is could be comprised of steel.
- Cap inner center projection 32 is received in opening 27 of elastomer spring 20 .
- Elastomer spring 20 is a typical polymer elastomer available from companies such as the Steinmetz Polymers, and is seen to be comprised of a cylindrical structure. Of course other cross sectional structures of elastomer spring 20 would be operable in this embodiment such as squares or multiple edges such as octagons, but as elastomer spring 20 is located within base wall 24 , a cylindrical structure would be preferred.
- FIGS. 10 , 11 , and 12 three embodiments of base insert 21 are shown.
- base insert 21 A is shown as comprising a generally circular main section 41 A, with wing section 43 A extending laterally therefrom and wing section 45 A extending laterally therefrom at an angle of about 180 degrees from wing section 43 A.
- wing section 31 of base insert 21 would be visible through opening 31 in base structure 12 base wall 24 .
- Wing section 33 would have a loading information number or other identifier imprinted to be visible through opening 31 .
- base insert 21 A would be preselected of a thickness TA that would be as thin as possible to accomplish the necessary support for spring 20 which itself would be selected of a length and compression to accomplish the desired load support for side bearing 10 .
- thickness of base insert 21 A-TA would be 0.11 inch (0.28 cm) and a complementary designed spring 20 would have a pre-compressed height of 5.30 inch, (13.5 cm) a setup height of 4.45 inch (11.3 cm) and a fully compressed height of 3.82 inch (9.7 cm).
- base insert 21 B is shown as comprising a generally circular main section 41 B, with wing section 43 B extending laterally therefrom and wing section 45 B extending laterally therefrom at an angle of about 180 degrees from wing section 43 B.
- wing section 31 of base insert 21 would be visible through opening 31 in base structure 12 base wall 24 .
- Wing section 33 would have a loading information number or other identifier imprinted to be visible through opening 31 .
- base insert 21 B would be preselected of a thickness TB that would be a bit thicker than thickness TA to accomplish the necessary support for spring 20 which itself would be selected of a length and compression to accomplish the desired load support for side bearing 10 .
- thickness of base insert 21 B-TB would be 0.178 inch (0.45 cm) and a complementary designed spring 20 would have a pre-compressed height of 5.30 inch, (13.5 cm) set up height of 4.38 inch (11.1 cm) and a fully compressed height of 3.75 inch (9.5 cm).
- base insert 21 C is shown as comprising a generally circular main section 41 C, with wing section 43 C extending laterally therefrom and wing section 45 C extending laterally therefrom at an angle of about 180 degrees from wing section 43 C.
- wing section 31 of base insert 21 would be visible through opening 31 in base structure 12 base wall 24 .
- Wing section 33 would have a loading information number or other identifier imprinted to be visible through opening 31 .
- base insert 21 C would be preselected of a thickness TC that would be as thin as possible to accomplish the necessary support for spring 20 which itself would be selected of a length and compression to accomplish the desired load support for side bearing 10 .
- thickness of base insert 21 C-TC would be 0.33 inch (0.84 cm) and a complementary designed spring 20 would have a pre-compressed height of 5.30 inch, (13.5 cm) a set up height of 4.23 inch (10.7 cm) and a fully compressed height of 3.60 inch (9.1 cm).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Vibration Prevention Devices (AREA)
- Support Of The Bearing (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Description
- The present invention relates to an improved side bearing for mounting on a railway car truck bolster that provides improved control to limit rock and roll characteristics of the railway car in service.
- In a typical railway freight train, such as shown in
FIG. 1 ,railway cars couplers Couplers draft sills Draft sills railway car trucks - As is better shown in
FIG. 2 , eachtypical car truck 226 includes a pair ofside frames wheel sets Bolster 238 extends between and is supported onsprings 240 mounted onside frames center plate 224 includes acentral opening 242.Side bearing pads 260 are provided laterally to each side of thecenter plate 224 onbolster 238.Side frames top member 244,compression member 246,tension member 248,column 250,pedestal 254,pedestal roof 256,wheel axle bearings 258, andbearing adapter 262. Side bearings are commonly used on railroad car trucks. Such side bearings are typically located on the truck bolster such as onside bearing pads 260, but may be located elsewhere on the bolster. - Typical side bearing arrangements are designed to control hunting of the railroad car. As a railroad car travels along the railroad track, a yaw excess motion can be induced in the railroad car truck. As the truck yaws, part of the side bearing is made to slide across the underside of a wear plate bolted to the railroad car body bolster. The resulting friction produces an opposing torque that acts to prevent such yaw motion. Another purpose of railroad car truck side bearings is control or limit the rock or roll motion of the car body. Most prior side bearing designs limited vertical travel of the side bearings. The maximum vertical travel of side bearings is specified in the Association of American Railroad Standards. Such vertical travel has limits based on the allowable height of the freight car and the design loading of the freight car.
- Accordingly, it is an object of the present invention to provide an improved side bearing which will be selectably responsive to the design loading of a freight car.
- A side bearing is provided with improved characteristics to enhance the performance of rail cars with selectable side bearings being available based on the design loading of a freight car.
- One embodiment of a side bearing in accordance with the present invention includes a base having a bottom portion and a base wall structure extending generally upwards therefrom. The base wall structure forms a base receiving structure with a generally open centrally located top and a smaller diameter opening in the bottom. A spring is positioned in the base receiving structure. A base insert is placed in the base receiving structure and provides support for the spring.
- An elastomer spring of a generally cylindrical shape is positioned within the base receiving structure.
- A cap of a generally inverted cup structure has a top portion and a cap wall structure extending generally downward from the top portion. The cap wall structure forms the cap receiving structure having an open bottom.
- The top portion of the spring extends into the cap receiving structure open bottom to support the cap.
- The base is usually a unitary cast steel or cast iron structure, but could be fabricated. The cap structure is also usually a generally cast steel or cast iron unitary structure, but also in certain embodiments could be fabricated.
- The spring is usually formed of a urethane polymer, or other suitable elastomer.
- The side bearing base insert is usually a unitary structure made of a structural plastic, but could be a metal structure.
- At the standard set-up height of 5.0625 inches (12.8 cm), the cap will be supported by and will preload the elastomer spring for an empty railway car. The base insert can be of varying thickness to affect the support height of the bottom of the spring. Depending on the desired load capacity of the freight car, the height of the base insert and compression characteristics of the spring can vary. The elastomer spring will have a selected load rating to increase the spring stiffness during further travel downward into or over the base of the side bearing. By limiting such downward travel of the cap, the rock of the railway freight car, especially in an unloaded condition, is kept within preselected design parameters. A base insert is provided of varying thickness to support springs of the same height to provide preselected varying load capacities.
- In the drawings,
-
FIG. 1 is a partial schematic of coupled ends of typical railway freight cars; -
FIG. 2 is a perspective view of a typical railway car truck; -
FIG. 3 is a side assembled view of one embodiment of a side bearing according to the present invention; -
FIG. 4 is a top sectional view of the first embodiment of the assembled side bearing; -
FIG. 5 is a cross sectional view of the first embodiment of the assembled side bearing; -
FIG. 6 is an exploded view of the first embodiment of the side bearing; -
FIG. 7 is a side cross sectional view of the cap of the first embodiment of the side bearing; -
FIG. 8 is a side cross sectional view of the base section of the first embodiment of the side bearing. -
FIG. 9 is a side cross sectional view of the spring of the first embodiment of the side bearings; -
FIG. 10 is a side cross sectional view of a first embodiment of a base insert of the side bearing of the present invention; -
FIG. 11 is a side cross sectional view of a second embodiment of a base insert of the side bearing of the present invention, - and
FIG. 12 is a side cross section view of a third embodiment of a base insert of the side bearing of the present invention. - Referring now to
FIGS. 3 through 9 , a first embodiment of side bearing according to the present invention is shown. Side bearing 10 includes abase structure 12, which is comprised of abottom portion 22 and abase wall 24 extending generally vertically upward therefrom.Base structure 12 is usually cast steel or cast iron unitary structure, but can be fabricated or machined as well. The shape ofbase 22 can be circular, somewhat rectangular, or somewhat oval or diamond shaped as the use dictates. -
Cap 14 is seen to be comprised of atop portion 26 with awall structure 28 extending generally downward from the outer edge ofcap 14. Again,cap 14 is usually a cast steel or cast iron unitary structure, but can be fabricated or machined as well. -
Base 12 is seen to also include a base walltop stop surface 38 which is located at the top ofbase wall 24. Similarly,cap 14 is seen to include a capinner stop surface 30 which is formed by an inner surface withincap 14 and is adjacent and complementary to base walltop stop surface 38. Anelastomer spring 20 is seen to be formed in a generally cylindrical structure, with abottom 25 supported on base insert 21top surface 23.Base insert 21 is a unitary structure, usually comprised of a structural plastic, but is could be comprised of steel. Capinner center projection 32 is received in opening 27 ofelastomer spring 20. -
Elastomer spring 20 is a typical polymer elastomer available from companies such as the Steinmetz Polymers, and is seen to be comprised of a cylindrical structure. Of course other cross sectional structures ofelastomer spring 20 would be operable in this embodiment such as squares or multiple edges such as octagons, but aselastomer spring 20 is located withinbase wall 24, a cylindrical structure would be preferred. - Referring now to
FIGS. 10 , 11, and 12, three embodiments ofbase insert 21 are shown. - In
FIG. 10 ,base insert 21A is shown as comprising a generally circularmain section 41A, withwing section 43A extending laterally therefrom andwing section 45A extending laterally therefrom at an angle of about 180 degrees fromwing section 43A. InFIG. 3 ,wing section 31 ofbase insert 21 would be visible throughopening 31 inbase structure 12base wall 24.Wing section 33 would have a loading information number or other identifier imprinted to be visible throughopening 31. - Similarly,
base insert 21A would be preselected of a thickness TA that would be as thin as possible to accomplish the necessary support forspring 20 which itself would be selected of a length and compression to accomplish the desired load support forside bearing 10. - In this embodiment, thickness of base insert 21A-TA would be 0.11 inch (0.28 cm) and a complementary designed
spring 20 would have a pre-compressed height of 5.30 inch, (13.5 cm) a setup height of 4.45 inch (11.3 cm) and a fully compressed height of 3.82 inch (9.7 cm). - In
FIG. 11 ,base insert 21B is shown as comprising a generally circularmain section 41B, withwing section 43B extending laterally therefrom andwing section 45B extending laterally therefrom at an angle of about 180 degrees fromwing section 43B. InFIG. 3 ,wing section 31 ofbase insert 21 would be visible throughopening 31 inbase structure 12base wall 24.Wing section 33 would have a loading information number or other identifier imprinted to be visible throughopening 31. - Similarly,
base insert 21B would be preselected of a thickness TB that would be a bit thicker than thickness TA to accomplish the necessary support forspring 20 which itself would be selected of a length and compression to accomplish the desired load support forside bearing 10. - In this embodiment, thickness of
base insert 21B-TB would be 0.178 inch (0.45 cm) and a complementary designedspring 20 would have a pre-compressed height of 5.30 inch, (13.5 cm) set up height of 4.38 inch (11.1 cm) and a fully compressed height of 3.75 inch (9.5 cm). - In
FIG. 12 , base insert 21C is shown as comprising a generally circularmain section 41C, withwing section 43C extending laterally therefrom andwing section 45C extending laterally therefrom at an angle of about 180 degrees fromwing section 43C. InFIG. 3 ,wing section 31 ofbase insert 21 would be visible throughopening 31 inbase structure 12base wall 24.Wing section 33 would have a loading information number or other identifier imprinted to be visible throughopening 31. - Similarly, base insert 21C would be preselected of a thickness TC that would be as thin as possible to accomplish the necessary support for
spring 20 which itself would be selected of a length and compression to accomplish the desired load support forside bearing 10. - In this embodiment, thickness of base insert 21C-TC would be 0.33 inch (0.84 cm) and a complementary designed
spring 20 would have a pre-compressed height of 5.30 inch, (13.5 cm) a set up height of 4.23 inch (10.7 cm) and a fully compressed height of 3.60 inch (9.1 cm).
Claims (19)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/807,226 US20120051678A1 (en) | 2010-09-01 | 2010-09-01 | Railroad freight car sidebearing |
CA2738966A CA2738966A1 (en) | 2010-09-01 | 2011-05-02 | Railroad freight car sidebearing |
MX2011005215A MX2011005215A (en) | 2010-09-01 | 2011-05-17 | Railroad freight car sidebearing. |
CN2011101628156A CN102381332A (en) | 2010-09-01 | 2011-06-17 | Railroad freight car sidebearing |
RU2011125592/11A RU2011125592A (en) | 2010-09-01 | 2011-06-22 | SUPPORT SLIDER |
BRPI1106585-0A BRPI1106585A2 (en) | 2010-09-01 | 2011-08-19 | Side bearing for use in a railcar trick |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/807,226 US20120051678A1 (en) | 2010-09-01 | 2010-09-01 | Railroad freight car sidebearing |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120051678A1 true US20120051678A1 (en) | 2012-03-01 |
Family
ID=45697371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/807,226 Abandoned US20120051678A1 (en) | 2010-09-01 | 2010-09-01 | Railroad freight car sidebearing |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120051678A1 (en) |
CN (1) | CN102381332A (en) |
BR (1) | BRPI1106585A2 (en) |
CA (1) | CA2738966A1 (en) |
MX (1) | MX2011005215A (en) |
RU (1) | RU2011125592A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU178179U1 (en) * | 2017-09-18 | 2018-03-26 | Общество с ограниченной ответственностью "Всесоюзный научно-исследовательский центр транспортных технологий" (ООО "ВНИЦТТ") | RAILWAY TROLLEY SLIDER |
RU188034U1 (en) * | 2018-09-12 | 2019-03-28 | Акционерное общество "Научно-производственная корпорация "Уралвагонзавод" имени Ф.Э. Дзержинского" | Lateral support of the cart of the railway carriage |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6862999B2 (en) * | 2002-11-07 | 2005-03-08 | Miner Enterprises, Inc. | Railroad car energy absorption apparatus |
US20050087092A1 (en) * | 2003-10-23 | 2005-04-28 | Mckisic Aubra D. | Modular base side bearing |
US20080035013A1 (en) * | 2006-07-19 | 2008-02-14 | Asf-Keystone, Inc. | Constant contact side bearing |
US20080035012A1 (en) * | 2006-07-19 | 2008-02-14 | Asf-Keystone, Inc. | Railway freight car side bearing |
US20080173211A1 (en) * | 2007-01-03 | 2008-07-24 | Kennedy James S | Constant Contact Side Bearing for railroad freight cars |
US20100294165A1 (en) * | 2009-05-22 | 2010-11-25 | Wabtec, Holding Corp. | Constant contact side bearing assembly with improved heat dissipation for a railcar |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101342908B (en) * | 2008-08-22 | 2010-08-25 | 齐齐哈尔轨道交通装备有限责任公司 | Elastic side bearing of railway wagon |
-
2010
- 2010-09-01 US US12/807,226 patent/US20120051678A1/en not_active Abandoned
-
2011
- 2011-05-02 CA CA2738966A patent/CA2738966A1/en not_active Abandoned
- 2011-05-17 MX MX2011005215A patent/MX2011005215A/en not_active Application Discontinuation
- 2011-06-17 CN CN2011101628156A patent/CN102381332A/en active Pending
- 2011-06-22 RU RU2011125592/11A patent/RU2011125592A/en unknown
- 2011-08-19 BR BRPI1106585-0A patent/BRPI1106585A2/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6862999B2 (en) * | 2002-11-07 | 2005-03-08 | Miner Enterprises, Inc. | Railroad car energy absorption apparatus |
US20050087092A1 (en) * | 2003-10-23 | 2005-04-28 | Mckisic Aubra D. | Modular base side bearing |
US20080035013A1 (en) * | 2006-07-19 | 2008-02-14 | Asf-Keystone, Inc. | Constant contact side bearing |
US20080035012A1 (en) * | 2006-07-19 | 2008-02-14 | Asf-Keystone, Inc. | Railway freight car side bearing |
US20080173211A1 (en) * | 2007-01-03 | 2008-07-24 | Kennedy James S | Constant Contact Side Bearing for railroad freight cars |
US20100294165A1 (en) * | 2009-05-22 | 2010-11-25 | Wabtec, Holding Corp. | Constant contact side bearing assembly with improved heat dissipation for a railcar |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU178179U1 (en) * | 2017-09-18 | 2018-03-26 | Общество с ограниченной ответственностью "Всесоюзный научно-исследовательский центр транспортных технологий" (ООО "ВНИЦТТ") | RAILWAY TROLLEY SLIDER |
RU188034U1 (en) * | 2018-09-12 | 2019-03-28 | Акционерное общество "Научно-производственная корпорация "Уралвагонзавод" имени Ф.Э. Дзержинского" | Lateral support of the cart of the railway carriage |
Also Published As
Publication number | Publication date |
---|---|
BRPI1106585A2 (en) | 2015-03-31 |
CN102381332A (en) | 2012-03-21 |
CA2738966A1 (en) | 2012-03-01 |
RU2011125592A (en) | 2012-12-27 |
MX2011005215A (en) | 2012-03-22 |
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Owner name: AMSTED RAIL COMPANY, INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MUELLER, MICHAEL;JOHNSTONE, BRAD;SIGNING DATES FROM 20100726 TO 20100819;REEL/FRAME:024967/0872 |
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Owner name: BANK OF AMERICA, N.A., AS COLLATERAL AGENT, CALIFO Free format text: SECOND AMENDED AND RESTATED INTELLECTUAL PROPERTY SECURITY AGREEMENT;ASSIGNORS:AMSTED INDUSTRIES INCORPORATED;ABC RAIL PRODUCTS CHINA INVESTMENT CORPORATION;AMCONSTRUCT CORPORATION;AND OTHERS;REEL/FRAME:027253/0488 Effective date: 20111115 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |