Patent · US Expired

Device for removing burrs from workpieces

US4030247A · kind A · utility

9Cited by

1References

13Claims

0Family size

Assignee

Messer Griesheim GmbH · DE

Inventors

Peter Grund · Berlin, DE
Jurgen Schmidt · Los Alamos, US
Jurgen Hesse · Erkrath, DE

Key dates

Filing date	Apr 14, 1976
Grant date	Jun 21, 1977
Priority date	—
Expiry date	Apr 14, 1996

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2021/00
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Burrs are removed from workpieces by cold embrittlement in an axisymmetrical container having a rotatable bottom with stationary sides and with the liquefied gas being supplied along the axis of rotation of the bottom. The rotational axis is inclined 5.degree. to 25.degree. with respect to the vertical and the bottom wall is conical with a cone angle of 130.degree.-170.degree..

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