Patents Assigned to Eheim GmbH & Co. KG
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Patent number: 6187179Abstract: An outside filter for an aquarium has a housing having an inner chamber, a removable cover for closing the inner chamber of the housing, a supply conduit for supplying water to be filtered into the inner chamber of the housing, a withdrawal conduit for withdrawing the water from the inner chamber of the housing, a motor-operated pump for withdrawing the filtered water, a device for producing a vacuum for aspirating water with air which is contained in the supply conduit during a displacement, the inner chamber of the housing together with the discharge conduit forming a system which communicates with the supply conduit and during the production of the vacuum is hermetically sealingly closed from outside and serves as an evacuatable pressure chamber, the device for producing the vacuum inside the system which is closed.Type: GrantFiled: March 30, 1999Date of Patent: February 13, 2001Assignee: Eheim GmbH & Co. KGInventors: Ferdinand Mayer, Walter Wiedenmann
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Patent number: 5799608Abstract: An automatic feeding apparatus for an aquarium has a housing, a supply drum rotatably supported in the housing and provided with a food discharge opening, a drive device arranged in the housing for driving the supply drum. The housing has an opening which is spaced from the food discharge opening and through which outer air is supplied.Type: GrantFiled: September 20, 1995Date of Patent: September 1, 1998Assignee: Eheim GmbH & Co. KG.Inventor: Bernhard Beck
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Patent number: 5567315Abstract: A filter for aquarium operating in accordance with the lifting-lowering principle comprises a housing with at least one filter compartment for a filter material, a pump which aspirates water after passing through the filter compartment through a suction conduit and supplies the water back into an aquarium, at least one auxiliary chamber supplied with water and a float-controlled valve device controlling an outlet of the auxiliary chamber and communicating with the suction conduit, an auxiliary housing in which the auxiliary chamber is provided and supplied with water filtered after passing of the filter compartment in accordance with the principle of communicating pipes. A passage which is connected with the suction conduit has a valve opening which is alternatingly closeable and openable by a float-controlled valve closing member of the valve device.Type: GrantFiled: March 22, 1995Date of Patent: October 22, 1996Assignee: Eheim GmbH & Co. KG.Inventors: Walter Weidenmann, Frank v. Luetzau, Gerhard Frank, Michael Schmidt, Ferdinand Mayer, Ulrich Herold
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Patent number: 5404840Abstract: The covering device for an aquarium, terrarium or like vivarium for living things includes an approximately rectangular frame (13); an upwardly openable cover member (15) pivotally mounted on the frame; a lighting device (17) mounted on the bottom side (16) of the cover member (15); a device for locking and releasing the cover member (15) when it is in a closed position on the frame (13) and a drive mechanism (18) for pivoting the cover member (15) upward automatically automatically to open it when the cover member (15) is released by the locking and releasing device, at least over a predetermined initial pivot angle range. A brake device for braking the action of the drive mechanism can also be provided.Type: GrantFiled: February 3, 1994Date of Patent: April 11, 1995Assignee: Eheim GmbH & Co KGInventors: Walter Wiedenmann, Ulrich Herold, Gerhard Frank, Ferdinand Mayer, Albert Baier, Michael Schmidt, Jorg Ploger
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Patent number: 5277800Abstract: 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 connecType: GrantFiled: December 28, 1992Date of Patent: January 11, 1994Assignee: Eheim GmbH & Co. KG.Inventors: Klaus Dieckmann, Ulrich Herold, Ferdinand Mayer, Walter Wiedenmann
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Patent number: 5160607Abstract: A filter for aquarium has a housing having a bottom chamber and at least one filter compartment for a filter material located above the bottom chamber, a supply arranged so that water is supplied from above so as to pass the filter compartment and float to the bottom chamber, a pump for pumping water from the bottom chamber back into the aquarium, so that the filter operates as alternating lifting-lowering filter. Each of the filter compartments has at least one overflow aspiration lifting device with an inlet located at a base side and substantially at a height of a bottom of the filter compartment and an outlet which opens downwardly toward a next one of the filter compartments.Type: GrantFiled: April 24, 1991Date of Patent: November 3, 1992Assignee: Eheim GmbH & Co. KGInventors: Helmut Thiemer, Walter Schottner, Peter Voss
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Patent number: D517644Type: GrantFiled: September 3, 2004Date of Patent: March 21, 2006Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer
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Patent number: D474526Type: GrantFiled: July 26, 2002Date of Patent: May 13, 2003Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer
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Patent number: D474527Type: GrantFiled: July 26, 2002Date of Patent: May 13, 2003Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer
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Patent number: D557375Type: GrantFiled: September 27, 2006Date of Patent: December 11, 2007Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer
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Patent number: D561406Type: GrantFiled: September 27, 2006Date of Patent: February 5, 2008Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer
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Patent number: D428109Type: GrantFiled: July 29, 1999Date of Patent: July 11, 2000Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer
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Patent number: D687191Type: GrantFiled: January 31, 2012Date of Patent: July 30, 2013Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer
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Patent number: D716507Type: GrantFiled: June 24, 2013Date of Patent: October 28, 2014Assignee: Eheim GmbH & Co. KGInventor: Ferdinand Mayer