Variable volume metering valve for dispensing beverage concentrates

US4533070A · kind A · utility

Assignee

• Bosch-Siemens Hausgeraete GmbH

Inventors

• Anton Deininger · Giengen an der Brenz, DE
• Hartmann Nelzow · Giengen an der Brenz, DE
• Karlheinz Farber · Giengen an der Brenz, DE

Key dates

• Filing date: Apr 11, 1984
• Grant date: Aug 6, 1985
• Expiry date: Apr 11, 2004

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B67D1/0081
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Metering valve, including a substantially vertically-disposed tubular housing, the housing having an upper and a lower end, the lower end of the housing having a valve seat formed thereon and an outlet opening formed therein, a cap being integral with the upper end of the housing and having an impact surface formed thereon, a substantially tubular ram being axially liftable by a magnetic force field in the housing, the ram having an upper and a lower end, the lower end of the ram having a sealing cone formed thereon and the ram having drainage ports formed therein in vicinity of the sealing cone, the drainage ports being operable to leak fluid below the ram when the ram is lifted, the upper end of the ram being operable to adjoin the impact surface of the cap when the ram is lifted, and the valve seat having at least one selectively operable air inlet formed therein being associated with the outlet opening.