Patent · US Expired

Method and apparatus for degreasing and compacting electrically conductive material

US5445789A · kind A · utility

4Cited by

10References

16Claims

0Family size

Assignee

Leybold Durferrit GmbH · DE

Inventors

Erwin Wanetzky · Großkrotzenburg, DE
Franz Hugo · Aschaffenburg, DE

Key dates

Filing date	Mar 16, 1994
Grant date	Aug 29, 1995
Priority date	—
Expiry date	Mar 16, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A plunger charged as an electrode is received in a trough charged as a counter-electrode in order to heat material in the trough above the annealing temperature of metal material or the sintering temperature of ceramic-material. The trough and plunger are situated in a vacuum chamber separated from a condenser and pump stand by a valve. The plunger can be retracted into a cover of the chamber by a hydraulic drive on the cover. The cover, drive, and plunger are removable from the lower part of the chamber as a unit.

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