Spinning method for forming a diameter reduced portion
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United States of America Patent
Stats
-
Jan 28, 2014
Grant Date -
Feb 2, 2012
app pub date -
Jan 5, 2010
filing date -
Jan 23, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a spinning method of reducing a diameter of a work piece pipe body with processing rollers disposed on an outer surface of the work piece pipe body, the processing rollers being configured to be relatively revolved around the work piece pipe body, wherein, when the processing rollers are axially reciprocated while being moved in a radius direction of the work piece pipe body, wherein the diameter reducing process with the processing rollers is performed under a state in which a wound body formed of an elastic sheet-like material is inserted as a core body into the inside of a portion of the work piece pipe body to be subjected to the diameter reducing processing.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2010 Application Filing Year
- B21D Class
- 881 Applications Filed
- 453 Patents Issued To-Date
- 51.42 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- B21D Class
- 14.87 % this patent is cited more than
- 11 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 | Jul 28, 2025 |
