Packaging machine

US4566505A · kind A · utility

Assignee

• St. Regis Corporation · US

Inventors

• Walter Ruf · Ditzingen, DE
• Robert G. Kelley · South Jordan, US

Key dates

• Filing date: Jun 30, 1983
• Grant date: Jan 28, 1986
• Expiry date: Jun 30, 2003

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65B1/18
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A packaging machine useful for packaging fluidized dry, divided, solid material into containers such as valve bags is provided with an isolator section for isolating forces generated in the flow path of the material from a filling and weighing section. The flow path includes a filling spout that extends into the container through a valve formed therein and is sealed in the valve by an inflatable sleeve on the filling spout, the sleeve being so constructed that only that portion that enters the valve is permitted to expand.