Inner filter for aquarium

US5277800A · kind A · utility

Assignee

• Eheim GmbH & Co. KG · DE

Inventors

• Klaus Dieckmann · Kuchen, DE
• Ulrich Herold · Oberboihingen, DE
• Ferdinand Mayer · Schwäbisch Gmünd, DE
• Walter Wiedenmann · Deizisau, DE

Key dates

• Filing date: Dec 28, 1992
• Grant date: Jan 11, 1994
• Expiry date: Dec 28, 2012

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01K63/045
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An inner filter for an aquarium has means forming a pump chamber, a filter chamber, a suction opening, and outlet opening, a suction passage which communicates with the pump chamber and the filter chamber and in which water is aspirated through the suction opening, a pressure chamber which communicates with the pump chamber and the outlet opening, a pump wheel, an electric motor having a rotor which drives the pump wheel in the pump chamber and also having a stator and a housing having three releasable and again assembleable segments, the segments including a first segment which accommodates the stator with an electric conductor, a second segment which accommodates the rotor with a bearing axles and bearings and also accommodates the pump wheel, the pump chamber, the filter chamber, the suction passage and the pressure passage, and a third segment which is placeable on the second segment and formed as a cover and has the outlet opening connectable with the pressure passage, the suction opening which is connectable with the filter chamber being provided in the region of one of the third segment and the first segment.