Patent · US Expired

Apparatus for the heat treatment of workpieces

US6147328A · kind A · utility

2Cited by
9References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 23, 1998
Grant dateNov 14, 2000
Priority date
Expiry dateOct 23, 2018

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF27D2003/006
  • WIPO fieldThermal processes and apparatus
  • WIPO sectorMechanical engineering

Abstract

An apparatus for the heat treatment of work pieces comprising comprising a plurality of evacuable chambers connected through airlocks, a conveyor, preferably a circular chain conveyor for the transport of the workpieces along a path through the chambers, an electric resistance heating device, a cooling blower, and a heat exchanger, a plurality of workpieces of equal size and configuration, in particular hacksaw blades, are placed tightly one on top of another and form a stack which is placed into a frame made of profile cuts, whereby the frame is capable of being coupled to a conveyor by means of suspension elements.

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