Locking-ring closure having at least one screw lock

US9933096B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Michael Butkus · Bartlett, US
• Daniel Kruse · Hachenburg, DE
• Ralf Berg · Münster, DE

Key dates

• Filing date: Jun 14, 2013
• Grant date: Apr 3, 2018
• Expiry date: Aug 3, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T24/1441
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A locking-ring closure for fastening lids on containers has: at least one screw lock and further has an open locking ring (1) having a U- or V-shaped cross section, bearing blocks (3) and (4) arranged at the ends of the locking ring, one of which bearing blocks has a through-passage hole and the other an internal thread, a screw (2) which extends through the through-passage hole in the one bearing block (3) and engages by way of its thread in the internal thread of the other bearing block (4), wherein the screw extends beyond the width of this bearing block and, on the portion that emerges from the bearing block, carries a fixed threaded ring (5) enclosing said portion. The screw (2) has, at its end opposite the screw head (6), a portion (8) adjacent to the threaded ring and arranged on that side of the threaded ring (5) that faces the screw head, which portion (8) has no thread engaging in the internal thread of the bearing block (4) and extends at least over the width of the bearing block.