Friction wedge for railroad car truck
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 20, 2012
Grant Date -
Feb 17, 2011
app pub date -
Aug 13, 2009
filing date -
Aug 13, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A single-piece friction wedge for use in damping relative movement between a bolster and a side frame of a railroad car truck includes a generally horizontal bottom surface, a generally vertical front surface, and a back surface oriented at an acute primary angle with respect to the front surface. The back surface has first and second sloped surfaces which are angled toward each other. A damping system employing such a friction wedge includes a bolster pocket insert. The bolster pocket insert is configured to be at least partially received within a pocket of the bolster and has an inner face configured to engage the pocket of the bolster and an outer face configured to engage at least one of the first and second sloped surfaces of the back surface of the friction wedge.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully