Sealing member for a device for melting solid adhesive material

US4314655A · kind A · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Erich Leibhard · Munich, DE
• Erwin Schiefer · Munich, DE
• Peter Stirnweiss · Maisach, DE

Key dates

• Filing date: Oct 12, 1979
• Grant date: Feb 9, 1982
• Expiry date: Oct 12, 1999

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05C17/00526
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

In a device for melting a body of solid thermoplastic adhesive material, a melting chamber is located within the housing and the adhesive material is fed into the melting chamber by a feed apparatus. A rubber-like elastic gasket is located at the inlet end of the chamber providing a seal around the adhesive material entering the chamber for preventing leakage of molten material back into the housing. An insulator ring formed of a thermostable, poor heat conducting material is located between the melting chamber inlet and the gasket to limit the passage of heat to the gasket. Preferably, the insulator ring is formed of TEFLON.