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Publication numberWO1999047287 A3
Publication typeApplication
Application numberPCT/US1999/005897
Publication date11 Nov 1999
Filing date18 Mar 1999
Priority date18 Mar 1998
Also published asWO1999047287A2, WO1999047287A8
Publication numberPCT/1999/5897, PCT/US/1999/005897, PCT/US/1999/05897, PCT/US/99/005897, PCT/US/99/05897, PCT/US1999/005897, PCT/US1999/05897, PCT/US1999005897, PCT/US199905897, PCT/US99/005897, PCT/US99/05897, PCT/US99005897, PCT/US9905897, WO 1999/047287 A3, WO 1999047287 A3, WO 1999047287A3, WO 9947287 A3, WO 9947287A3, WO-A3-1999047287, WO-A3-9947287, WO1999/047287A3, WO1999047287 A3, WO1999047287A3, WO9947287 A3, WO9947287A3
InventorsJohn L Knapp
ApplicantHuynh Oanh, Cai Hue, John L Knapp
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Tube-forming machine and method
WO 1999047287 A3
Abstract
A tube-forming machine (10) permits the formation of tubing (14) from a flat strip of material (12) using a continuous in-line process. In this manner, tube (14) may be formed from flat strip material (12) without transferring the preformed strip from one set of former rolls to a second, third, fourth, and in some cases fifth set for further forming. The resulting tubing (14) is of a high quality and the properties of the material have been substantially preserved so that, if necessary, the output tubing (14) from the present tube-forming machine (10) may be further processed into a desired finished product.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3590622 *18 Dec 19686 Jul 1971Ernest N CalhounApparatus for making tubing
US3593558 *24 Jul 196920 Jul 1971Fenn Mfg Co ThePayoff reel controller
US3677047 *1 Apr 197018 Jul 1972Barr David WilliamForming of tubular metal ducting
US3765207 *7 May 197116 Oct 1973Non Ferrous Int CorpMethod and apparatus for working or finning tubing
US3794803 *21 Apr 197126 Feb 1974Valdeck JApparatus and method for making needle tubing
US3858785 *18 Jun 19737 Jan 1975Olin CorpApparatus for making heat exchanger tube
US4232813 *10 Mar 197811 Nov 1980Eaton-Leonard CorporationMethod and apparatus for making bent pipe
US4331281 *26 Dec 197925 May 1982Kabel-Und Metallwerke Gutehoffnungshuette AgProcess and apparatus for production of welded tubes
US4846392 *17 Jun 198811 Jul 1989Hinshaw Experimental Laboratories Limited PartnershipContinuously variable speed, die-drawing device and process for metal, composites, and the like, and compositions therefrom
Classifications
International ClassificationB21C37/08
Cooperative ClassificationB21C37/08
European ClassificationB21C37/08
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