The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1981
Filed:
Jul. 13, 1979
Applicant:
Inventors:
Assignee:
Brown, Boveri & Cie Aktiengesellschaft, Mannheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21J / ;
U.S. Cl.
CPC ...
427156 ; 72362 ; 148 121 ; 148 14 ; 427427 ;
Abstract
Preventing work pieces of iron or iron alloys in the form of a line of blocks which are pushed through an induction coil and heated to a forging temperature from sticking together. The surfaces of blocks which touch are subjected to an elevated temperature of heating and pressure due to pushing causing sintering with sticking. The application of a finely-divided material of predominantly iron oxide to the surfaces prevents sticking together of the surfaces when subjected to elevated temperature and pressure.