Crankshaft and method of strengthening shaft component
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 28, 2019
Grant Date -
Jun 15, 2017
app pub date -
Mar 16, 2015
filing date -
Mar 20, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A crankshaft that can be strengthened in a short time without being subjected to wasteful processing, and that can be strengthened over a wide range. The crankshaft includes a crank pin and a fillet portion of a journal pin. Compressive residual stress is applied to a region on the fillet portion, which extends at almost equal distances to both sides in a circumferential direction from a portion in which the greatest bending load is applied, and a processing depth for applying the compressive residual stress is gradually decreased in a circumferential direction from the center position in which the compressive residual stress is greatest.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2015 Application Filing Year
- B21K Class
- 115 Applications Filed
- 97 Patents Issued To-Date
- 84.35 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B21K Class
- 0 % this patent is cited more than
- 6 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 | Nov 28, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 28, 2030 |
