Metal deforming – By tool-couple pressing together adjacent surface portions... – To form helically-seamed tube
Patent
1995-03-20
1997-03-11
Larson, Lowell A.
Metal deforming
By tool-couple pressing together adjacent surface portions...
To form helically-seamed tube
72 72, 72 71, 72129, 72132, B21F 1100, B21C 3700
Patent
active
056090552
ABSTRACT:
An apparatus for simultaneously cutting and notching a pipe includes an upper knife assembly having a pipe cutting knife and notch cutting knives with cutting edges adjacent a surface of the pipe and a lower knife assembly having a pipe cutting knife and notch cutting knives with cutting edges adjacent an opposite surface of the pipe. A method for cutting and notching a pipe includes stopping the axial and rotational movement of a pipe and moving the lower knife assembly into an overlapping relation with the upper knife assembly. The notch cutting knives are also moved into a cutting position and the axial and rotational pipe movement is resumed.
REFERENCES:
patent: 684539 (1901-10-01), Cartwright
patent: 694524 (1902-03-01), Boyd
patent: 957966 (1910-05-01), Jenkins
patent: 1345458 (1920-07-01), Pierce
patent: 1372040 (1921-03-01), Rendano
patent: 1703037 (1929-02-01), Heck
patent: 1740430 (1929-12-01), Mudd
patent: 3132616 (1964-05-01), Hale et al.
patent: 3183695 (1965-05-01), Darner
patent: 3420032 (1969-01-01), Felt
patent: 3831470 (1974-08-01), Maroschak
patent: 3913430 (1975-10-01), Van Dijk
patent: 3982414 (1976-09-01), Anderson
patent: 4054069 (1977-10-01), Coop
patent: 4244202 (1981-01-01), Anderson et al.
patent: 4567742 (1986-02-01), Castricum
patent: 4706481 (1987-11-01), Castricum
patent: 4711110 (1987-12-01), Castricum
patent: 4744276 (1988-05-01), Duce
patent: 4823579 (1989-04-01), Castricum
patent: 4924684 (1990-05-01), Castricum
Spiro Investment, S. A. Pre 1983 Spare Part Catalog, Spiro Tubeformer 2002.
Spiro Investment S. A. Pre 1983 Operation Instructions, Spiro Tubeformer 700.
Spiro Investment S. A. Pre 1983 Operation Instructinos, Spiro Tubeformer MR.
Product leaflet from Metu-System Meinig KG for circular duct flanges believed to have been published prior to Mar. 24, 1994.
European Search Report of EP 96 30 1678.
Butler Rodney
Larson Lowell A.
Spiral-Helix, Inc.
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