FR2138998B1 - - Google Patents
Info
- Publication number
- FR2138998B1 FR2138998B1 FR7218550A FR7218550A FR2138998B1 FR 2138998 B1 FR2138998 B1 FR 2138998B1 FR 7218550 A FR7218550 A FR 7218550A FR 7218550 A FR7218550 A FR 7218550A FR 2138998 B1 FR2138998 B1 FR 2138998B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14613871A | 1971-05-24 | 1971-05-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2138998A1 FR2138998A1 (fr) | 1973-01-05 |
FR2138998B1 true FR2138998B1 (fr) | 1977-04-01 |
Family
ID=22516001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7218550A Expired FR2138998B1 (fr) | 1971-05-24 | 1972-05-24 |
Country Status (11)
Country | Link |
---|---|
US (1) | US3691337A (fr) |
AT (1) | AT325392B (fr) |
AU (1) | AU472165B2 (fr) |
BE (1) | BE783883A (fr) |
BR (1) | BR7203251D0 (fr) |
CA (1) | CA952766A (fr) |
CH (1) | CH552419A (fr) |
ES (1) | ES402396A1 (fr) |
FR (1) | FR2138998B1 (fr) |
GB (1) | GB1357682A (fr) |
IT (1) | IT952739B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4971239A (en) * | 1988-12-21 | 1990-11-20 | Ameron, Inc. | Method and apparatus for making welded tapered tubes |
GB2244015B (en) * | 1990-03-14 | 1993-10-27 | Hadley Sections Limited | Tube and method of forming same |
US5868299A (en) * | 1997-05-05 | 1999-02-09 | Abbey Etna Machine Company | Method and apparatus for maintaining seam alignment in seam welded tubes |
CN102500640B (zh) * | 2011-10-19 | 2013-12-25 | 上海交通大学 | 直缝焊管排辊成形机组的工艺优化方法 |
US20150165555A1 (en) * | 2013-12-13 | 2015-06-18 | Global Automotive Systems, Llc | Tube seam weld station and weld shoes |
CN104307922A (zh) * | 2014-11-14 | 2015-01-28 | 武汉钢铁(集团)公司 | 大高宽比高强度矩管冷弯成型方法 |
-
1971
- 1971-05-24 US US146138A patent/US3691337A/en not_active Expired - Lifetime
-
1972
- 1972-03-27 CA CA138,269A patent/CA952766A/en not_active Expired
- 1972-03-30 AU AU40625/72A patent/AU472165B2/en not_active Expired
- 1972-04-04 GB GB1545472A patent/GB1357682A/en not_active Expired
- 1972-04-20 IT IT49785/72A patent/IT952739B/it active
- 1972-05-05 ES ES402396A patent/ES402396A1/es not_active Expired
- 1972-05-18 AT AT433372A patent/AT325392B/de not_active IP Right Cessation
- 1972-05-23 CH CH755772A patent/CH552419A/xx not_active IP Right Cessation
- 1972-05-23 BR BR3251/72A patent/BR7203251D0/pt unknown
- 1972-05-24 BE BE783883A patent/BE783883A/fr not_active IP Right Cessation
- 1972-05-24 FR FR7218550A patent/FR2138998B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH552419A (de) | 1974-08-15 |
GB1357682A (en) | 1974-06-26 |
FR2138998A1 (fr) | 1973-01-05 |
CA952766A (en) | 1974-08-13 |
AT325392B (de) | 1975-10-27 |
IT952739B (it) | 1973-07-30 |
AU4062572A (en) | 1973-10-04 |
AU472165B2 (en) | 1973-10-04 |
US3691337A (en) | 1972-09-12 |
BR7203251D0 (pt) | 1973-06-26 |
BE783883A (fr) | 1972-11-24 |
ES402396A1 (es) | 1975-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |