Device for measuring undulation of brake disc in railway wheel with brake discs
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 27, 2017
Grant Date -
Dec 4, 2014
app pub date -
Sep 14, 2012
filing date -
Jan 27, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A device for measuring undulation of a brake disc in a railway wheel with brake discs includes a wheel support supporting a hub's bore of the railway wheel; a first displacement gauge for measuring a height displacement of the brake disc frictional surface for one round to follow rotation of the wheel support; and a second displacement gauge for measuring a height displacement of a railway wheel rim surface for one round to follow rotation of the wheel support. A computing unit calculates a difference between maximum and minimum values of the height displacement of the frictional surface by acquiring measurement data from the first displacement gauge, calculates a difference between the maximum and minimum values of the height displacement of the rim's surface by acquiring measurement data from the second displacement gauge, and derives a difference between the both calculated differences as brake disc undulation.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | B2 | JP5753500 | Jan 27, 2012 |
| WO | A1 | WO2013111209 | Sep 14, 2012 |
| CN | B | CN104067089 | Sep 14, 2012 |
| TW | B | TWI480511 | Sep 27, 2012 |
International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- B05C:APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- B61H:BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RA....
- B05B:SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B08B:CLEANING IN GENERAL; PREVENTION OF FOULING IN GENE....
- B60T:VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BR....
- B60B:VEHICLE WHEELS
- F16D:COUPLINGS FOR TRANSMITTING ROTATION
- G01B:MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIME....
- 2012 Application Filing Year
- H01L Class
- 20465 Applications Filed
- 18077 Patents Issued To-Date
- 88.34 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- H01L Class
- 18.50 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 27, 2024 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 27, 2028 |
