Title:
CONSTANT CONTACT SIDE BEARING ASSEMBLY WITH IMPROVED HEAT DISSIPATION FOR A RAILCAR
Document Type and Number:
WIPO Patent Application WO/2010/135414
Kind Code:
A3
Abstract:
A constant contact side bearing assembly for a railcar includes a housing having a base, a pair of mounting apertures formed through a thickness of the base, a generally cylindrical housing wall upstanding on the base, a pair of diametrically opposed channels, a pair of diametrically opposed openings and a guide member disposed centrally on and upstanding from an inner surface of the base. A cap is disposed for reciprocal axial movement relative to the housing. An elastomeric spring is disposed within a generally closed chamber formed by a combination of the housing and the cap. A pair of air passages is provided for dissipating heat generated during operation of the constant contact side bearing assembly. Each air passage is defined by a pair of aligned openings formed through a wall portion of the cap. Each opening may be disposed within a pocket provided within the cap wall.
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WO/2011/134263 | RAILWAY FREIGHT CAR BOGIE |
Inventors:
SPRAINIS RONALD J (US)
ROBITAILLE ANDREW (US)
SAMMARTINO GIUSEPPE (US)
MARLOW JONATHON (US)
GREGAR PETE (US)
ANDERSON BRADLEY (US)
ROBITAILLE ANDREW (US)
SAMMARTINO GIUSEPPE (US)
MARLOW JONATHON (US)
GREGAR PETE (US)
ANDERSON BRADLEY (US)
Application Number:
PCT/US2010/035381
Publication Date:
February 24, 2011
Filing Date:
May 19, 2010
Export Citation:
Assignee:
WABTEC HOLDING CORP (US)
SPRAINIS RONALD J (US)
ROBITAILLE ANDREW (US)
SAMMARTINO GIUSEPPE (US)
MARLOW JONATHON (US)
GREGAR PETE (US)
ANDERSON BRADLEY (US)
SPRAINIS RONALD J (US)
ROBITAILLE ANDREW (US)
SAMMARTINO GIUSEPPE (US)
MARLOW JONATHON (US)
GREGAR PETE (US)
ANDERSON BRADLEY (US)
International Classes:
B61F5/14; B61F5/24; F16C17/04; F16C27/02
Foreign References:
US20040129170A1 | 2004-07-08 | |||
US5601031A | 1997-02-11 | |||
US6092470A | 2000-07-25 | |||
US4712487A | 1987-12-15 |
Attorney, Agent or Firm:
BYRNE, Richard, L. et al. (700 Koppers Building436 Seventh Avenu, Pittsburgh Pennsylvania, US)
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