Roughening or texturig surfaces of tubes

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Industry

CPC
B21B2023/005

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21BROLLING OF METAL

Current Industry

B21B2023/005Roughening or texturig surfaces of tubes

Industries

Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing seamless steel tube
- Patent number 7,201,812
- Issue date Apr 10, 2007
- Sumitomo Metal Industries, Ltd.
- Hidenori Ogawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing seamless tube with grooved inner surface
- Patent number 6,834,523
- Issue date Dec 28, 2004
- Kabushiki Kaisha Kobe Seiko Sho
- Nobuaki Hinago
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method of making machine-engraved seamless tube
- Patent number 5,328,587
- Issue date Jul 12, 1994
- IR International, Inc.
- Willi Fenske
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacturing an aluminum tube
- Publication number 20040035176
- Publication date Feb 26, 2004
- Jens Haase
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method for manufacturing seamless steel tube
- Publication number 20030196734
- Publication date Oct 23, 2003
- Hidenori Ogawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method for producing seamless tube with groved inner surface
- Publication number 20030182979
- Publication date Oct 2, 2003
- Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
- Nobuaki Hinago
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Apparatus for producing internally grooved tube
- Publication number 20030182980
- Publication date Oct 2, 2003
- Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
- Nobuaki Hinago
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...