US3850311A - Lock guide structure for a railway vehicle coupler - Google Patents
Lock guide structure for a railway vehicle coupler Download PDFInfo
- Publication number
- US3850311A US3850311A US00408196A US40819673A US3850311A US 3850311 A US3850311 A US 3850311A US 00408196 A US00408196 A US 00408196A US 40819673 A US40819673 A US 40819673A US 3850311 A US3850311 A US 3850311A
- Authority
- US
- United States
- Prior art keywords
- lock
- knuckle
- movement
- chamber
- housing
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
- B61G3/04—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
- B61G3/06—Knuckle-locking devices
- B61G3/08—Control devices, e.g. for uncoupling
Definitions
- the inclined surface is located and disposed at an angle to prevent the lock set seat from hanging or [561 References Cited $333361?3311 21321 23??? leg dumg UNITED STATES PATENTS 1,869,713 8/1932 Regan 213/127 8 Claims 3 Drawing Figures LOCK GUIDE STRUCTURE FOR A RAILWAY VEHICLE COUPLER BACKGROUND AND SUMMARY THE INVENTION
- the present invention relates to railway vehicle couplers and more. particularly to an improved guiding structure for guiding the lock from the unlocked position to lock position during closing of the knuckle.
- the lock guiding structure was constructed such that under certain conditions of closing movement of the knuckle the lock did not always drop into the lock position.
- the prior guard arm lock guide structure was in the path of movement of the lock so as to tend to cause the lock to return to a lock-set position. This is objectionable because of the failure to achieve proper coupling between railway vehicles on which the couplers are mounted.
- FIG. 1 is a side elevational view toward the knuckle side partially in section of a coupler embodying the lock guiding structure of the present invention with the lock shown in the locked position.
- FIG. 2 is an enlarged elevational view in section of the coupler housing looking from the knuckle side toward the guard arm side showing the lock located intermediate the release and lock positions in full lines and located in the lock position in phantom lines.
- FIG. 3 is a front view of the coupler housing with the knuckle, knuckle thrower and lock removed to show the relative position of the lock guide structure of the present invention.
- the coupler includes a coupler housing 12 having a knuckle side 13 and a guard arm side 14.
- a knuckle 15 is pivotally mounted on the knuckle side 13 for movement between an open and closed position.
- a knuckle thrower 16 is supported in the housing 12 and co-acts with the knuckle 15 in the conventional manner.
- a locklift assembly 17 Supported on the exterior of the housing for actuation by an uncoupling rod (not shown) is a locklift assembly 17 having a trunnion 18 which is received in an elongated and inclined toggle slot 19 provided in a leg 21 of a lock 22.
- the lock 22 is of standard construction and is located in a lock chamber 23.
- the lock 22 includes the usual fulcrum 24, thrower seat 26, lock set seat 27, rear guide 28 and rear wall 29 having a lower chamfered face 31.
- the knuckle side of the lock chamber 23 includes a lock guide 32 depending downwardly from the housing 12.
- the guiding surface 33 on the knuckle side lock guide 32 is engageable with the rear guide 28 on the lock 22 to guide the latter for movement between the release and lock positions.
- the thrower seat 26 rests upon a lock seat leg 34 of the knuckle thrower 16 with the fulcrum resting against the locking face as shown in FIG. 1.
- the construction has been such that the lock set seat 27 has a tendency to hang-up on the lock seat leg 34 of the knuckle thrower 16. This results in a minimum partial engagement of the lock locking face and the knuckle locking face whereby a positive lock of the knuckle against opening is not achieved.
- the improved lock guide 11 on the guard arm side is formed to prevent the above described condition.
- the guard arm side lock guide 11 extends between the longitudinal axis 35 and the exterior wall of the housing 12 and is constructed with an inclined guiding surface 36 which is engageable with the chamfered face 31 on the lock as the rear guide 28 slides along the knuckle side lock guide 32.
- the inclined guiding surface 36 merges with an upstanding surface 37 which may be normal to the longitudinal axis of the coupler housing 12.
- the inclined surface 36 is inclined at angle a relative to a line perpendicular to the longitudinal axis 35 sufficient to retain the lock set seat 27 out of engagement with the knuckle leg lock seat 34 during down ward movement of the lock 22 to its locked position.
- the angle of incline a may vary from 18 to 45 and is preferably 24. In this manner the movement of the lock 22 from the release to lock positions is accomplished smoothly without encountering hang-ups or the like.
- the upstanding or perpendicular surface 37 engages the rear wall 29.
- a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for movement between a closed position and an open position, a lock chamber, a lock movable in said lock chamber between a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, and lock guide means for guiding said lock from said release position to said lock position as said knuckle moves to said closed position, the improvement comprising lock guide on said guard arm side including a lock guide surface having a first guiding surface section contiguous to a second guiding surface section extending substantially normal to and from the longitudinal axis of said housing, said first guiding surface section extending from and inclined at an acute angle relative to said first guiding surface section to assure unimpeded locking movement as said lock moves from said release position to said lock position.
- a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for movement between a closed position and an open position, a lock chamber, a lock movable in said chamber be tween a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, and lock guide means for guiding said look from said release position to said lock position as said knuckle moves to said closed position, the improvement comprising a lock guide on said guard arm side, said lock guide including a lock guiding surface at the rear of said chamber extending between the longitudinal axis of said housing and the exterior of said lock chamber, said lock guiding surface having at least a length thereof inclined at an angle relative to a line perpendicular to the longitudinal axis of said housing to assure unimpeded movement between said release position and said lock position.
- a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for move ment between a closed position and an open position, a said knuckle thrower having a leg lock seat, a lock chamber, a lock movable in said chamber between a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, said lock having a lock set seat, lock guide means on said knuckle side for guiding said lock from said release position to said lock position as said knuckle moves to said closed position, a lock guide on said guard arm side, said lock guide including a lock guiding surface at the rear of said chamber extending from the longitudinal axis of said housing, said lock having a chamfered surface engagable with said lock guiding surface, at least one of said lock guiding surface and said chamfered surface having a
Abstract
A railway vehicle coupler having an improved lock guide structure on the guard arm side of the coupler housing. The guard arm side lock guide includes an inclined surface engaging the chamfered edge of the lock during movement of the lock to the lock position. The inclined surface is located and disposed at an angle to prevent the lock set seat from hanging or seating on the knuckle thrower leg lock seat during movement to the lock position.
Description
States Kauiiholdl 1 1 Nov. 26, 19741 [5 LOCK GUIDE STRUCTURE FOR A 1,873,494 8/1932 Service 213/127 x RAILWAY VEHICLE COUPLER 2,948,414 8/1960 Metzger 213/146 X 3,698,570 10/1972 Metzger 213/127 X [75] Inventor: Horst Thomas Kaufhold, Chicago,
7 Primary Examiner-M. Henson Wood, Jr. [73] Assignee: AMSTED Industries Incorporated, Assistant Examiner-Gene A. Church Chicago, 111. [22] Filed: Oct. 19, 1973 [57] ABSTRACT [21] Appl. No.: 408,196 A railway vehicle coupler having an improved lock guide structure on the guard arm side of the coupler housing. The guard arm side lock guide includes an (g1. 213/l4ofi62l13/3 inclined Surface engaging the chamfered edge of the I g lock during movement of the lock to the lock position [58] Field of Search 213/125, 126, 127, 129,
213/136 146 147 142 143 The inclined surface is located and disposed at an angle to prevent the lock set seat from hanging or [561 References Cited $333361?3311 21321 23??? leg dumg UNITED STATES PATENTS 1,869,713 8/1932 Regan 213/127 8 Claims 3 Drawing Figures LOCK GUIDE STRUCTURE FOR A RAILWAY VEHICLE COUPLER BACKGROUND AND SUMMARY THE INVENTION The present invention relates to railway vehicle couplers and more. particularly to an improved guiding structure for guiding the lock from the unlocked position to lock position during closing of the knuckle.
I-Ieretofore, the lock guiding structure was constructed such that under certain conditions of closing movement of the knuckle the lock did not always drop into the lock position. During knuckle closure the prior guard arm lock guide structure was in the path of movement of the lock so as to tend to cause the lock to return to a lock-set position. This is objectionable because of the failure to achieve proper coupling between railway vehicles on which the couplers are mounted.
By the present invention it is proposed to provide an improved lock guiding means which overcomes the difwhich at least a section of the length thereof is inclined at an acute angle relative to the longitudinal axis of the coupler housing. The inclined guide section is located to assure uninterrupted movement of the lock from the release to lock positions under all conditions of knuckle operation.
Further features of the invention will be readily apparent from the following drawing, specification and claims.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevational view toward the knuckle side partially in section of a coupler embodying the lock guiding structure of the present invention with the lock shown in the locked position.
FIG. 2 is an enlarged elevational view in section of the coupler housing looking from the knuckle side toward the guard arm side showing the lock located intermediate the release and lock positions in full lines and located in the lock position in phantom lines.
FIG. 3 is a front view of the coupler housing with the knuckle, knuckle thrower and lock removed to show the relative position of the lock guide structure of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, there is shown a coupler l incorporating the improved lock guiding structure ll of the present invention. The coupler includes a coupler housing 12 having a knuckle side 13 and a guard arm side 14. A knuckle 15 is pivotally mounted on the knuckle side 13 for movement between an open and closed position. A knuckle thrower 16 is supported in the housing 12 and co-acts with the knuckle 15 in the conventional manner. Supported on the exterior of the housing for actuation by an uncoupling rod (not shown) is a locklift assembly 17 having a trunnion 18 which is received in an elongated and inclined toggle slot 19 provided in a leg 21 of a lock 22.
The lock 22 is of standard construction and is located in a lock chamber 23. The lock 22 includes the usual fulcrum 24, thrower seat 26, lock set seat 27, rear guide 28 and rear wall 29 having a lower chamfered face 31.
The knuckle side of the lock chamber 23 includes a lock guide 32 depending downwardly from the housing 12. The guiding surface 33 on the knuckle side lock guide 32 is engageable with the rear guide 28 on the lock 22 to guide the latter for movement between the release and lock positions.
In the lock position, the thrower seat 26 rests upon a lock seat leg 34 of the knuckle thrower 16 with the fulcrum resting against the locking face as shown in FIG. 1. Heretofore, while guide means have been provided along the guard arm side of the coupler housing, the construction has been such that the lock set seat 27 has a tendency to hang-up on the lock seat leg 34 of the knuckle thrower 16. This results in a minimum partial engagement of the lock locking face and the knuckle locking face whereby a positive lock of the knuckle against opening is not achieved.
In accordance with the present invention the improved lock guide 11 on the guard arm side is formed to prevent the above described condition. To this end, the guard arm side lock guide 11 extends between the longitudinal axis 35 and the exterior wall of the housing 12 and is constructed with an inclined guiding surface 36 which is engageable with the chamfered face 31 on the lock as the rear guide 28 slides along the knuckle side lock guide 32. The inclined guiding surface 36 merges with an upstanding surface 37 which may be normal to the longitudinal axis of the coupler housing 12. The inclined surface 36 is inclined at angle a relative to a line perpendicular to the longitudinal axis 35 sufficient to retain the lock set seat 27 out of engagement with the knuckle leg lock seat 34 during down ward movement of the lock 22 to its locked position. The angle of incline a may vary from 18 to 45 and is preferably 24. In this manner the movement of the lock 22 from the release to lock positions is accomplished smoothly without encountering hang-ups or the like. In the lock position, the upstanding or perpendicular surface 37 engages the rear wall 29.
It should be understood that the arrangement described above constitutes the preferred embodiment and that many adaptations and modifications may be made without departing from the spirit of the invention.
I claim:
1. In a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for movement between a closed position and an open position, a lock chamber, a lock movable in said lock chamber between a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, and lock guide means for guiding said lock from said release position to said lock position as said knuckle moves to said closed position, the improvement comprising lock guide on said guard arm side including a lock guide surface having a first guiding surface section contiguous to a second guiding surface section extending substantially normal to and from the longitudinal axis of said housing, said first guiding surface section extending from and inclined at an acute angle relative to said first guiding surface section to assure unimpeded locking movement as said lock moves from said release position to said lock position.
2. The invention as defined in claim 1 wherein said acute angle ranges between about 18 and 45.
3. The invention as defined in claim 2 wherein said acute angle is substantially 24.
4. The invention as defined in claim 1 wherein said first guiding surface terminates at the interior wall of said lock chamber.
5. In a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for movement between a closed position and an open position, a lock chamber, a lock movable in said chamber be tween a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, and lock guide means for guiding said look from said release position to said lock position as said knuckle moves to said closed position, the improvement comprising a lock guide on said guard arm side, said lock guide including a lock guiding surface at the rear of said chamber extending between the longitudinal axis of said housing and the exterior of said lock chamber, said lock guiding surface having at least a length thereof inclined at an angle relative to a line perpendicular to the longitudinal axis of said housing to assure unimpeded movement between said release position and said lock position.
6. The invention as defined in claim 5 wherein said length of surface is inclined at an acute angle varying between about 18 and 45.
7. The invention as defined in claim 6 wherein said length of surface is inclined at about 24.
8. In a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for move ment between a closed position and an open position, a said knuckle thrower having a leg lock seat, a lock chamber, a lock movable in said chamber between a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, said lock having a lock set seat, lock guide means on said knuckle side for guiding said lock from said release position to said lock position as said knuckle moves to said closed position, a lock guide on said guard arm side, said lock guide including a lock guiding surface at the rear of said chamber extending from the longitudinal axis of said housing, said lock having a chamfered surface engagable with said lock guiding surface, at least one of said lock guiding surface and said chamfered surface having a length and inclined at an angle relative to a line perpendicular to the longitudinal axis of said housing so that said chamfered surface and said lock guide are in sliding engagement at a location resulting in said lock set seat being maintained out of engagement with said knuckle thrower leg lock seat so that said lock has unimpeded movement between said release position and said lock position.
UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,850,311 Dated November 26, 1974 Inventor g Horst Thomas Kaufhold It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
In the Claims:
In Column 3, Line 3, change "first? to --second--.
Signed and sealed this 29th day of April 1975.
(SEAL) Attest:
C. MARSHALL DANN RUTH C. MASON Commissioner of Patents Attesting Officer and Trademarks FORM P0405) (1069) USCOMM-DC 60376-P69 I Q .5. GOVERNMENT PRINTING oFFlCE I '9.9 3$6 334
Claims (8)
1. In a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for movement between a closed position and an open position, a lock chamber, a lock movable in said lock chamber between a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, and lock guide means for guiding said lock from said release position to said lock position as said knuckle moves to said closed position, the improvement comprising lock guide on said guard arm side including a lock guide surface having a first guiding surface section contiguous to a second guiding surface section extending substantially normal to and from the longitudinal axis of said housing, said first guiding surface section extending from and inclined at an acute angle relative to said first guiding surface section to assure unimpeded locking movement as said lock moves from said release position to said lock position.
2. The invention as defined in claim 1 wherein said acute angle ranges between about 18* and 45*.
3. The invention as defined in claim 2 wherein said acute angle is substantially 24*.
4. The invention as defined in claim 1 wherein said first guiding surface terminates at the interior wall of said lock chamber.
5. In a coupler for a railway vehicle including a coupler housing having a knuckle side and a Guard arm side, a knuckle mounted on said knuckle side for movement between a closed position and an open position, a lock chamber, a lock movable in said chamber between a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, and lock guide means for guiding said lock from said release position to said lock position as said knuckle moves to said closed position, the improvement comprising a lock guide on said guard arm side, said lock guide including a lock guiding surface at the rear of said chamber extending between the longitudinal axis of said housing and the exterior of said lock chamber, said lock guiding surface having at least a length thereof inclined at an angle relative to a line perpendicular to the longitudinal axis of said housing to assure unimpeded movement between said release position and said lock position.
6. The invention as defined in claim 5 wherein said length of surface is inclined at an acute angle varying between about 18* and 45*.
7. The invention as defined in claim 6 wherein said length of surface is inclined at about 24*.
8. In a coupler for a railway vehicle including a coupler housing having a knuckle side and a guard arm side, a knuckle mounted on said knuckle side for movement between a closed position and an open position, a said knuckle thrower having a leg lock seat, a lock chamber, a lock movable in said chamber between a release position releasing said knuckle for movement to said open position and a lock position locking said knuckle in said closed position, said lock having a lock set seat, lock guide means on said knuckle side for guiding said lock from said release position to said lock position as said knuckle moves to said closed position, a lock guide on said guard arm side, said lock guide including a lock guiding surface at the rear of said chamber extending from the longitudinal axis of said housing, said lock having a chamfered surface engagable with said lock guiding surface, at least one of said lock guiding surface and said chamfered surface having a length and inclined at an angle relative to a line perpendicular to the longitudinal axis of said housing so that said chamfered surface and said lock guide are in sliding engagement at a location resulting in said lock set seat being maintained out of engagement with said knuckle thrower leg lock seat so that said lock has unimpeded movement between said release position and said lock position.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00408196A US3850311A (en) | 1973-10-19 | 1973-10-19 | Lock guide structure for a railway vehicle coupler |
| CA210,892A CA1028287A (en) | 1973-10-19 | 1974-10-07 | Lock guide structure for a railway vehicle coupler |
| AU74254/74A AU464477B2 (en) | 1973-10-19 | 1974-10-11 | Improved lock guide structure fora railway vehicle coupler |
| ZA00746481A ZA746481B (en) | 1973-10-19 | 1974-10-11 | Improved lock guide structure for a railway vehicle coupler |
| BE149603A BE821150A (en) | 1973-10-19 | 1974-10-16 | IMPROVEMENTS TO THE STRUCTURE OF GUIDE-LATCHES FOR RAILWAY VEHICLE COUPLINGS |
| BR8667/74A BR7408667D0 (en) | 1973-10-19 | 1974-10-17 | PERFECT HITCH FOR A RAIL VEHICLE |
| JP49119485A JPS5848384B2 (en) | 1973-10-19 | 1974-10-18 | How do you know how to use a computer? |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00408196A US3850311A (en) | 1973-10-19 | 1973-10-19 | Lock guide structure for a railway vehicle coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3850311A true US3850311A (en) | 1974-11-26 |
Family
ID=23615243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00408196A Expired - Lifetime US3850311A (en) | 1973-10-19 | 1973-10-19 | Lock guide structure for a railway vehicle coupler |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3850311A (en) |
| JP (1) | JPS5848384B2 (en) |
| AU (1) | AU464477B2 (en) |
| BE (1) | BE821150A (en) |
| BR (1) | BR7408667D0 (en) |
| CA (1) | CA1028287A (en) |
| ZA (1) | ZA746481B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5437073A (en) * | 1990-05-18 | 1995-08-01 | Smith; Graham H. | Tube cleaner |
| WO2010083672A1 (en) * | 2009-01-21 | 2010-07-29 | 齐齐哈尔轨道交通装备有限责任公司 | Coupler and coupler tripping preventing mechanism |
| US8196762B2 (en) | 2008-05-23 | 2012-06-12 | Bedloe Industries Llc | Knuckle formed without a finger core |
| US8201613B2 (en) | 2008-05-23 | 2012-06-19 | Bedloe Industries Llc | Knuckle formed from pivot pin and kidney core and isolated finger core |
| US8408406B2 (en) | 2008-05-22 | 2013-04-02 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
| US8544662B2 (en) | 2008-05-22 | 2013-10-01 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
| US8662327B2 (en) | 2008-05-23 | 2014-03-04 | Bedloe Industries Llc | Railway coupler core structure for increased strength and fatigue life of resulting knuckle |
| US8746473B2 (en) | 2008-05-22 | 2014-06-10 | Bedloe Industries Llc | Railway coupler body improvements to improve knuckle rotation |
| US9701323B2 (en) | 2015-04-06 | 2017-07-11 | Bedloe Industries Llc | Railcar coupler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1869713A (en) * | 1929-03-27 | 1932-08-02 | Mcconway & Torley Co | Car coupler |
| US1873494A (en) * | 1930-05-20 | 1932-08-23 | Henry H Service | Coupler |
| US2948414A (en) * | 1957-07-31 | 1960-08-09 | Nat Malleable & Steel Castings | Car coupler |
| US3698570A (en) * | 1971-05-21 | 1972-10-17 | Midland Ross Corp | Car coupler |
-
1973
- 1973-10-19 US US00408196A patent/US3850311A/en not_active Expired - Lifetime
-
1974
- 1974-10-07 CA CA210,892A patent/CA1028287A/en not_active Expired
- 1974-10-11 AU AU74254/74A patent/AU464477B2/en not_active Expired
- 1974-10-11 ZA ZA00746481A patent/ZA746481B/en unknown
- 1974-10-16 BE BE149603A patent/BE821150A/en unknown
- 1974-10-17 BR BR8667/74A patent/BR7408667D0/en unknown
- 1974-10-18 JP JP49119485A patent/JPS5848384B2/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1869713A (en) * | 1929-03-27 | 1932-08-02 | Mcconway & Torley Co | Car coupler |
| US1873494A (en) * | 1930-05-20 | 1932-08-23 | Henry H Service | Coupler |
| US2948414A (en) * | 1957-07-31 | 1960-08-09 | Nat Malleable & Steel Castings | Car coupler |
| US3698570A (en) * | 1971-05-21 | 1972-10-17 | Midland Ross Corp | Car coupler |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5437073A (en) * | 1990-05-18 | 1995-08-01 | Smith; Graham H. | Tube cleaner |
| US8408406B2 (en) | 2008-05-22 | 2013-04-02 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
| US8746473B2 (en) | 2008-05-22 | 2014-06-10 | Bedloe Industries Llc | Railway coupler body improvements to improve knuckle rotation |
| US8544662B2 (en) | 2008-05-22 | 2013-10-01 | Bedloe Industries Llc | Central datum feature on railroad coupler body and corresponding gauges |
| US8646631B2 (en) | 2008-05-23 | 2014-02-11 | Bedloe Industries, LLC | Knuckle formed from pivot pin and kidney core and isolated finger core |
| US8201613B2 (en) | 2008-05-23 | 2012-06-19 | Bedloe Industries Llc | Knuckle formed from pivot pin and kidney core and isolated finger core |
| US8196762B2 (en) | 2008-05-23 | 2012-06-12 | Bedloe Industries Llc | Knuckle formed without a finger core |
| US8631952B2 (en) | 2008-05-23 | 2014-01-21 | Bedloe Industries Llc | Knuckle formed without a finger core |
| US8662327B2 (en) | 2008-05-23 | 2014-03-04 | Bedloe Industries Llc | Railway coupler core structure for increased strength and fatigue life of resulting knuckle |
| US8186525B2 (en) * | 2009-01-21 | 2012-05-29 | Qiqihar Railway Rolling Stock Co., Ltd. | Coupler and anti-creep mechanism for the same |
| US20110073555A1 (en) * | 2009-01-21 | 2011-03-31 | Qiqihar Railway Rolling Stock Co., Ltd | Coupler and Anti-Creep Mechanism For The Same |
| WO2010083672A1 (en) * | 2009-01-21 | 2010-07-29 | 齐齐哈尔轨道交通装备有限责任公司 | Coupler and coupler tripping preventing mechanism |
| US9701323B2 (en) | 2015-04-06 | 2017-07-11 | Bedloe Industries Llc | Railcar coupler |
| US10532753B2 (en) | 2015-04-06 | 2020-01-14 | Bedloe Industries Llc | Railcar coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA746481B (en) | 1975-11-26 |
| CA1028287A (en) | 1978-03-21 |
| JPS5072311A (en) | 1975-06-14 |
| JPS5848384B2 (en) | 1983-10-28 |
| AU7425474A (en) | 1975-08-28 |
| BR7408667D0 (en) | 1975-09-23 |
| BE821150A (en) | 1975-04-16 |
| AU464477B2 (en) | 1975-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE., IL Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO, AS AGENT;REEL/FRAME:005070/0731 Effective date: 19880831 |