BE753343R
Expired / Lapsed
BE
⏱️ 0.0 years remaining
Hard steel wire rod mfr
Assignee: Centre Rech Metallurgique
•
Filing: 1970-07-10
•
Granted: 1971-01-11
•
Expires: 1990-07-10
Abstract
Abstract Hard steel wire, mfre. Process is similar to the parent patent, modified 737,682 are improved by addition to the bath, besides the surfactants, of substances enabling the heat transfer from the rod to the bath to be increased. Specif. the substances added may be such that during the period of allotropic transformation the speed of cooling is of the same order as in a molten salt bath. The substances may be or contain iron and/or copper sulphate, and cooling may be further speeded up by a d.c. potential between the wire rod and the bath wall.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
BE
Data Source
google_patents
Last Synchronized
2026-11-01 00:04
CPC Classifications
B; B21; B21F; B21F99/00; C; C21; C21D; C21D1/00; C21D1/56; C21D1/60; C21D9/00; C21D9/52; C21D9/525
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.