Peristaltically operating roller pump

US4545744A · kind A · utility

Assignee

• Fresenius AG · DE

Inventors

• Wolfram Weber · Friedrichsthal, DE
• Hans-Jürgen Neumann · Sankt Wendel, DE
• Artur Meisberger · Sankt Wendel, DE
• Bernd Mathieu · Spiesen, DE

Key dates

• Filing date: Jul 24, 1984
• Grant date: Oct 8, 1985
• Expiry date: Jul 24, 2004

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B43/1276
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A roller pump (1) comprises a stator member (2) in which a pump bed (3) is formed with specific geometry. In the interior of the pump bed (3) a rotor (6) is rotatably mounted. A pump hose (10) can be inserted into the pump bed (3), said hose being curved in loop-like manner and its two ends being combined in immediate vicinity to each other in a connecting piece (11). The connecting piece (11) can be fixed in location in the stator member (2), the arrangement in the stator member (2) being uniquely defined by cooperation of a location tongue (23) and a location slot (22). Interchanging of the pressure-side and suction-side connection is thus impossible. A holding-down member (24) arranged on the rotor (6) permits automatic insertion and ejection of the pump hose (10) or hose system (9).