Media dispenser

US6257454A · kind A · utility

Assignee

• Ing. Erich Pfeiffer GmbH · DE

Inventor

• Stefan Ritsche · Radolfzell, DE

Key dates

• Filing date: Apr 28, 1999
• Grant date: Jul 10, 2001
• Expiry date: Apr 28, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D2255/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The outlet (12) of a dispenser reservoir (8) is sealingly closed by a transverse catch member (21) which also positively prevents the dispenser (1) from being actuated. Pulling out the catch member (21) opens the reservoir (8) and releases the discharge actuator (37). Thus the piston (14) opposing the reservoir outlet (12) can enter. The materials of the reservoir (8) and reservoir seal (30) are paired in glass, tetrafluoroethylene or the like. Thus even sensitive media may be stored in the dispenser (1) over lengthy periods without risking any change in the substances.