Railroad-vehicle truck frame with transoms having flanges and central webs

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4674411
SERIAL NO

06790907

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A railroad-vehicle truck with a frame that yields under torsion and consists of transoms (2) and side frames bars (1) welded into an H. The transoms (2) are positioned such that the planes that the transom webs (2k) lie in intersect at one line (S7), which lies between the flanges (21) of the transoms. Each of the flanges of the transoms are fastened to one of the upper and lower flanges on the depressed middle section of the side frame. Helical compression springs are positioned on the upper flanges of the depressed section, with a bolster on the springs, and load dependent side bearings between the compression springs and the bolster. The side frames are resistant to torque over their total length, but the transoms yield under torque. Thus the truck has sufficient corner rigidity and prevents high material stresses caused by torque.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Wegmann & Co. GmbHKASSEL3
WAGGONFABRIK TALBOT5100 AACHEN0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schindehutte, Manfred Calden, DE 4 78

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2006/0285,971 Shroud tip clearance control ring 0 2005
 
Trailer Teain Company (1)
* 4817535 Stand alone well car with double axle suspension system 4 1986
 
Usines et Acieries de Sambre et Meuse (2)
* 4922832 Intermodal road/rail transportation system 9 1988
* 4955144 Compatible intermodal road/rail transportation system 14 1988
 
National Steel Car Limited (30)
7255048 Rail road car truck with rocking sideframe 30 2002
7004079 Rail road car and truck therefor 19 2003
7823513 Rail road car truck 17 2003
7845288 Rail road car truck and members thereof 35 2004
7143700 Rail road car truck and fittings therefor 29 2004
7631603 Rail road car truck and bolster therefor 23 2004
7267059 Rail road freight car with damped suspension 27 2005
7681506 Truck bolster 15 2005
7328659 Rail road freight car with resilient suspension 32 2005
7497169 Rail road car truck and fittings therefor 22 2006
7603954 Rail road car and truck therefor 17 2007
7610862 Rail road car truck with rocking sideframe 15 2007
7699008 Rail road freight car with damped suspension 17 2007
7571684 Rail road freight car with damped suspension 16 2007
7775163 Rail road car and bearing adapter fittings therefor 14 2007
7946229 Rail road car truck 15 2008
7654204 Rail road car truck with bearing adapter and method 17 2008
* 2009/0139,428 RAIL ROAD CAR TRUCK WITH BEARING ADAPTER AND METHOD 2 2008
8746151 Rail road car truck and fitting therefor 11 2009
8770113 Rail road freight car with damped suspension 1 2009
8011306 Rail road car and truck therefor 17 2009
8113126 Rail road car truck and bolster therefor 19 2009
* 2010/0154,672 RAIL ROAD CAR TRUCK AND BOLSTER THEREFOR 15 2009
9254850 Rail road car truck with bearing adapter and method 0 2010
8413592 Rail road car truck 14 2010
8272333 Rail road car truck and members thereof 12 2010
8726812 Rail road freight car truck with self-steering rocker 0 2012
8720347 Relieved bearing adapter for railroad freight car truck 0 2012
9475508 Rail road car truck and fitting therefor 0 2013
9278700 Fittings for railroad car truck 0 2014
* Cited By Examiner