Railway vehicle brake disc
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 26, 2016
Grant Date -
Sep 3, 2015
app pub date -
Sep 5, 2013
filing date -
Sep 7, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A railway vehicle brake disc which can reduce aerodynamic sound raised high speed running, improve cooling performance during braking, and improve durability comprises a donut-shaped disc section having a sliding surface on a front surface side, a plurality of fin sections, each convexly provided in a rear surface of the disc section in a radial pattern, and a bolt hole passing through the disc section and the fin section. The disc section is mounted on a wheel in a state where the fin sections contact a plate section of the wheel using a bolt inserted into the bolt hole. The fin section has a groove formed along a circumferential direction in at least one of an area on an inner peripheral side and an area on an outer peripheral side of the bolt hole when viewed in a radial direction of the disc section.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- B61H Class
- 32 Applications Filed
- 25 Patents Issued To-Date
- 78.13 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B61H Class
- 40 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 26, 2028 |
