Apparatus for coating magnetic disks

US4033288A · kind A · utility

Assignee

• BASF SE

Inventors

• Josef Woellhaf · Ludwigshafen, DE
• Werner Balz · Schifferstadt, DE
• Roland Falk · Achern, DE
• Dieter Scheffel
• Volker Richter · Neutraubling, DE
• Paul Willmann

Key dates

• Filing date: Jul 26, 1976
• Grant date: Jul 5, 1977
• Expiry date: Jul 26, 1996

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D1/005
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A disk to be coated on both sides in rotatively supported within an annular housing of a larger internal diameter. Means traverse and coat each side of the rotating disk. The inner housing wall is disposed transversely to the disk and has an annular slot operatively associated with the disk whereby excess coating material is spun off the disk and into the housing. The housing is radially of a triangular cross-section, the apex offset from said disk whereby said spun off material strikes an inclined internal wall surface of the housing. Means orbit a plurality of such disks about a central axis and through a plurality of movable treating stations.