EP0195408A3 - Improved flexible mandrel for bending hollow articles - Google Patents
Improved flexible mandrel for bending hollow articles Download PDFInfo
- Publication number
- EP0195408A3 EP0195408A3 EP86103646A EP86103646A EP0195408A3 EP 0195408 A3 EP0195408 A3 EP 0195408A3 EP 86103646 A EP86103646 A EP 86103646A EP 86103646 A EP86103646 A EP 86103646A EP 0195408 A3 EP0195408 A3 EP 0195408A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- mandrel
- cross
- hoses
- hollow articles
- flexible mandrel
- Prior art date
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71436385A | 1985-03-21 | 1985-03-21 | |
US714363 | 1985-03-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0195408A2 EP0195408A2 (en) | 1986-09-24 |
EP0195408A3 true EP0195408A3 (en) | 1987-04-29 |
Family
ID=24869738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86103646A Ceased EP0195408A3 (en) | 1985-03-21 | 1986-03-18 | Improved flexible mandrel for bending hollow articles |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0195408A3 (en) |
JP (1) | JPS61253126A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3701612A1 (en) * | 1987-01-21 | 1988-08-04 | Benteler Werke Ag | METHOD FOR BENDING TUBES AND SUPPORTING PIN FOR PERFORMING THE METHOD |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1555895A (en) * | 1924-11-03 | 1925-10-06 | American Nat Company | Method of bending sheet-metal blanks having alpha rolled edge |
DE1552862A1 (en) * | 1966-12-29 | 1969-09-11 | Banning Ag Maschinenfabrik J | Bending mandrel for thin-walled pipes |
US3851519A (en) * | 1972-06-06 | 1974-12-03 | Crc Crose Int Inc | Internal pipe supporting mandrel |
DE2449221A1 (en) * | 1973-10-17 | 1975-04-24 | Pneumatiques Caoutchouc Mfg | EXPANDABLE PIN OR CORE FOR BENDING LARGE DIAMETER METAL PIPES |
US3922134A (en) * | 1973-12-17 | 1975-11-25 | Robintech Inc | Pipe bending mandrel |
-
1986
- 1986-03-18 EP EP86103646A patent/EP0195408A3/en not_active Ceased
- 1986-03-20 JP JP6100386A patent/JPS61253126A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1555895A (en) * | 1924-11-03 | 1925-10-06 | American Nat Company | Method of bending sheet-metal blanks having alpha rolled edge |
DE1552862A1 (en) * | 1966-12-29 | 1969-09-11 | Banning Ag Maschinenfabrik J | Bending mandrel for thin-walled pipes |
US3851519A (en) * | 1972-06-06 | 1974-12-03 | Crc Crose Int Inc | Internal pipe supporting mandrel |
DE2449221A1 (en) * | 1973-10-17 | 1975-04-24 | Pneumatiques Caoutchouc Mfg | EXPANDABLE PIN OR CORE FOR BENDING LARGE DIAMETER METAL PIPES |
US3922134A (en) * | 1973-12-17 | 1975-11-25 | Robintech Inc | Pipe bending mandrel |
Also Published As
Publication number | Publication date |
---|---|
EP0195408A2 (en) | 1986-09-24 |
JPS61253126A (en) | 1986-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB IT NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT NL SE |
|
17P | Request for examination filed |
Effective date: 19870811 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALUMINUM COMPANY OF AMERICA |
|
17Q | First examination report despatched |
Effective date: 19880721 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19900612 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: EVERT, ROBERT PAUL Inventor name: KLINGENSMITH, JAMES DONALD |