Patent · US Expired

Spiral pipe machine

US7451629B2 · kind B2 · utility

1Cited by
5References
13Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 5, 2006
Grant dateNov 18, 2008
Priority date
Expiry dateApr 26, 2026

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB21C37/16
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A spiral pipe machine includes a feeding assembly for continuously feeding a web of material, and a forming assembly for accepting the web. The forming assembly bends the web to form a first section of a spiral pipe having a first predetermined diameter. A controller is employed for selectively instructing the forming means to change its configuration so as to give a second section of the spiral pipe a second predetermined diameter. The controller is capable of controlling the forming station to transition from the first predetermined diameter to the second predetermined diameter during the continuous feeding of the web.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.