IT7923261A0 - Procedimento ed apparato per produrre corpi tubolari arcuati, la cui sezione trasversale si restringe progressivamente da un'estremita' all'altra. - Google Patents

Procedimento ed apparato per produrre corpi tubolari arcuati, la cui sezione trasversale si restringe progressivamente da un'estremita' all'altra.

Info

Publication number: IT7923261A0
Authority: IT; Italy
Prior art keywords: arced; procedure; producing; whose cross; tubular bodies
Prior art date: 1978-06-08

Application number

IT7923261A

Other languages

English (en)

Other versions

IT1121249B (it

Original Assignee

Siekmann & Co Rohrbogenwerk

Priority date (The priority date 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 date listed.)

1978-06-08

Filing date

1979-06-04

Publication date

1979-06-04

1979-06-04 Application filed by Siekmann & Co Rohrbogenwerk filed Critical Siekmann & Co Rohrbogenwerk

1979-06-04 Publication of IT7923261A0 publication Critical patent/IT7923261A0/it

1986-03-26 Application granted granted Critical

1986-03-26 Publication of IT1121249B publication Critical patent/IT1121249B/it

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
- B21D9/12—Bending tubes using mandrels or the like by pushing over a curved mandrel; by pushing through a curved die

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Bending Of Plates, Rods, And Pipes (AREA)
Branch Pipes, Bends, And The Like (AREA)
Shaping Of Tube Ends By Bending Or Straightening (AREA)

IT23261/79A 1978-06-08 1979-06-04 Procedimento ed apparato per produrre corpi tubolari arcuati,la coi sezione trasversale si restringe progressivamente da un'estremita'all'altra IT1121249B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2825166A DE2825166C2 (de)	1978-06-08	1978-06-08	Verfahren und Vorrichtung zum Herstellen von Rohrbogen mit sich von einem zum anderen Ende verjüngendem Querschnitt

Publications (2)

Publication Number	Publication Date
IT7923261A0 true IT7923261A0 (it)	1979-06-04
IT1121249B IT1121249B (it)	1986-03-26

Family

ID=6041349

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT23261/79A IT1121249B (it)	1978-06-08	1979-06-04	Procedimento ed apparato per produrre corpi tubolari arcuati,la coi sezione trasversale si restringe progressivamente da un'estremita'all'altra

Country Status (4)

Country	Link
AT (1)	AT365951B (it)
DE (1)	DE2825166C2 (it)
FR (1)	FR2427859B1 (it)
IT (1)	IT1121249B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4989435A (en) *	1989-12-11	1991-02-05	Kabushiki Kaisha Asahi Kinzoku Hogyosho	Method and apparatus for manufacturing curved pipe
CN102319783A (zh) *	2011-06-24	2012-01-18	江阴中南重工股份有限公司	等径等壁厚管件的热推弯生产方法
CN107971377A (zh) *	2017-11-03	2018-05-01	北京国电富通科技发展有限责任公司	弯头成型模具及成型方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE472415C (it) *
DE592521C (de) *		1934-02-08	Jakob Schmitz	Verfahren zum Abstreifen des durch Ziehen eines gekruemmten Dornes durch ein gerades Rohrstueck hergestellten Rohrbogens vom gekruemmten Dornende
DE573890C (de) *	1931-04-25	1933-10-10	Rohrbogenwerk G M B H	Verfahren zur Herstellung von Rohrbogen o. dgl.
US2105075A (en) *	1935-10-08	1938-01-11	Tube Turns Inc	Method and apparatus for making pipe bends
US2750026A (en) *	1950-05-29	1956-06-12	Nat Cylinder Gas Co	Apparatus for producing reducing elbows
GB688519A (en) *	1950-05-29	1953-03-11	Tube Turns Inc	Improvements in or relating to apparatus for and method of forming a reducing elbow
DE1056905B (de) *	1957-10-23	1959-05-06	Kocks Gmbh Friedrich	Verfahren zum Biegen von Rohren
DE1261102B (de) *	1960-06-23	1968-02-15	Meyer F	Verfahren und Vorrichtung zum Herstellen von Rohrbogen mit sich vom einen zum anderen Ende gleichmaessig verjuengendem Querschnitt
DE1241684B (de) *	1963-07-13	1967-06-01	Stephanie Klockow Geb Christen	Verfahren zur Herstellung eines Rohrbogens
DE1246362B (de) *	1964-04-02	1967-08-03	Stephanie Klockow Geb Christen	Rohrbiegevorrichtung
CH521179A (de) *	1971-03-18	1972-04-15	Fischer Ag Georg	Vorrichtung zum Herstellen von Rohrkrümmern
DE2707747A1 (de) *	1977-02-23	1978-08-31	Vahlbrauk Lorowerk	Vorrichtung zur herstellung nahtloser rohrbogen

1978
- 1978-06-08 DE DE2825166A patent/DE2825166C2/de not_active Expired
1979
- 1979-05-31 AT AT0398979A patent/AT365951B/de not_active IP Right Cessation
- 1979-06-04 IT IT23261/79A patent/IT1121249B/it active
- 1979-06-08 FR FR7914777A patent/FR2427859B1/fr not_active Expired

Also Published As

Publication number	Publication date
FR2427859B1 (fr)	1985-08-30
FR2427859A1 (fr)	1980-01-04
IT1121249B (it)	1986-03-26
ATA398979A (de)	1981-07-15
AT365951B (de)	1982-02-25
DE2825166C2 (de)	1987-02-05
DE2825166A1 (de)	1979-12-13

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