Patent · US Expired

Bending machine with digital electronic control of bend angle

US4719577A · kind A · utility

9Cited by
14References
7Claims
0Family size

Inventor

Key dates

Filing dateMay 29, 1985
Grant dateJan 12, 1988
Priority date
Expiry dateMay 29, 2005

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/45143
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A bending machine with a rotatable bending shoe for bending conduit and pipe includes a digital electronic control system with memory for providing accurate bending control and accurate repeat bending of successive conduits or pipes to substantially the same angle. A sensor is provided for determining increment degrees of rotation of a gear in the bending shoe drive train with the increments correlated to a particular degree of rotation of the bending shoe. The sensor signals are input to counting and comparator devices to terminate bending after the shoe rotates the degrees stored in memory for a particular bend.

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