Patent · US Expired

Magnetic press

US5813274A · kind A · utility

5Cited by
16References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 20, 1996
Grant dateSep 29, 1998
Priority date
Expiry dateSep 20, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S72/707
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A magnetic press (10) for performing a manufacturing operation includes tooling (60) operatively connected to reciprocating parts comprising rods (22), and a magnet (41) connected to the rods (22) through a stationary plate (31). A control circuit (200) electrically operates a reciprocating magnet (41) and a stationary magnet (51) for inducing flux fields of attraction in the magnets (41,51), and for reversing the polarity of the flux fields to eliminate residual magnetism and for cushioning the landing of magnet (41) on a return stroke. FIGS. 2 and 4.

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