Patents by Inventor Marion Hartmann
Marion Hartmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7004986Abstract: A filter has a filter housing and a receptacle chamber in the filter housing into which a filter element is insertable. The filter housing has a housing cover for opening and closing an opening of the receptacle chamber. The housing cover is situated in an area of the filter housing between the oncoming flow side and the outgoing flow side of the filter element.Type: GrantFiled: May 23, 2003Date of Patent: February 28, 2006Assignee: Mann & Hummel GmbHInventors: Edvard Kopec, Manfred Winter, Volker Greif, Klemens Dworatzek, Marion Hartmann, Karlheinz Muenkel, Jens Haehn, Joachim Stinzendoerfer
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Patent number: 6918939Abstract: A filter device having a filter element arranged in a filter housing that can be sealed by a housing lid with a sealing ring. The medium to be filtered is supplied to the filter element through an inlet opening in the filter housing. On the filtered side of the filter element, the filtered medium is discharged through an outlet opening in the filter housing. The housing lid is constructed in two parts and includes an inner lid and an outer lid. The inner lid can be inserted into a housing opening, with the sealing ring arranged between the inner lid and the wall of the housing opening. The outer lid covers the housing opening and is connected with the wall of the housing opening by a locking mechanism.Type: GrantFiled: July 16, 2003Date of Patent: July 19, 2005Assignee: Mann & Hummel GmbHInventors: Klemens Dworatzek, Karlheinz Muenkel, Marion Hartmann
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Patent number: 6884273Abstract: A multicell cyclone with a plurality of cyclone cells and a method for the production thereof, in which the cyclone cells of the multicell cyclone are combined into groups from which deposited particles are cleaned out by vacuum suction through channel structures. This permits better control of the discharge of separated particles. Vacuum suction of the separated particles can be effected, for instance, via openings (19) which are jointly provided for the group (21) of cyclone cells. The group of cyclone cells can furthermore be produced as a module, which can, for instance, be assembled from two parts (12, 13) in which like structural elements of a group of cyclones are combined into one respective part. This makes it possible to optimize the separation result with little structural complexity and at low production cost.Type: GrantFiled: August 28, 2002Date of Patent: April 26, 2005Assignee: Filterwerk Mann & Hummel GmbHInventors: Edvard Kopec, Volker Greif, Klemens Dworatzek, Jens Haehn, Marion Hartmann
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Patent number: 6792925Abstract: A filter device having a filter element arranged in a filter housing with a housing port closed by a housing cover with a housing ring. A medium to be purified is supplied to the filter element through an inlet in the filter housing. On the discharge side of the filter element, purified medium is discharged through an outlet in the filter housing. A pressure relief valve is integrated into the housing cover and is subjected to the pressure on the inlet side of the filter element. The housing cover is constructed in two parts and includes an inside cover and an outside cover. The pressure relief valve is mounted in the inside cover, which closes the housing port. A discharge path for discharging medium exhausted from the filter housing through the pressure relief valve is formed between the inside cover and the outside cover.Type: GrantFiled: July 16, 2003Date of Patent: September 21, 2004Assignee: Filterwerk Mann & Hummel GmbHInventors: Klemens Dworatzek, Karlheinz Muenkel, Marion Hartmann
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Publication number: 20040112348Abstract: A filter device having a filter element arranged in a filter housing with a housing port closed by a housing cover with a housing ring. A medium to be purified is supplied to the filter element through an inlet in the filter housing. On the discharge side of the filter element, purified medium is discharged through an outlet in the filter housing. A pressure relief valve is integrated into the housing cover and is subjected to the pressure on the inlet side of the filter element. The housing cover is constructed in two parts and includes an inside cover and an outside cover. The pressure relief valve is mounted in the inside cover, which closes the housing port. A discharge path for discharging medium exhausted from the filter housing through the pressure relief valve is formed between the inside cover and the outside cover.Type: ApplicationFiled: July 16, 2003Publication date: June 17, 2004Applicant: Mann & Hummel GmbHInventors: Klemens Dworatzek, Karlheinz Muenkel, Marion Hartmann
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Publication number: 20040083692Abstract: A filter device having a filter element arranged in a filter housing that can be sealed by a housing lid with a sealing ring. The medium to be filtered is supplied to the filter element through an inlet opening in the filter housing. On the filtered side of the filter element, the filtered medium is discharged through an outlet opening in the filter housing. The housing lid is constructed in two parts and includes an inner lid and an outer lid. The inner lid can be inserted into a housing opening, with the sealing ring arranged between the inner lid and the wall of the housing opening. The outer lid covers the housing opening and is connected with the wall of the housing opening by a locking mechanism.Type: ApplicationFiled: July 16, 2003Publication date: May 6, 2004Applicant: Mann & Hummel GmbHInventors: Klemens Dworatzek, Karlheinz Muenkel, Marion Hartmann
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Publication number: 20040040271Abstract: A filter has a filter housing and a receptacle chamber in the filter housing into which a filter element is insertable. The filter housing has a housing cover for opening and closing an opening of the receptacle chamber. The housing cover is situated in an area of the filter housing between the oncoming flow side and the outgoing flow side of the filter element.Type: ApplicationFiled: May 23, 2003Publication date: March 4, 2004Applicant: Mann & Hummel GmbHInventors: Edvard Kopec, Manfred Winter, Volker Greif, Klemens Dworatzek, Marion Hartmann, Karlheinz Muenkel, Jens Haehn, Joachim Stinzendoerfer
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Publication number: 20030057151Abstract: A multicell cyclone with a plurality of cyclone cells and a method for the production thereof, in which the cyclone cells of the multicell cyclone are combined into groups from which deposited particles are cleaned out by vacuum suction through channel structures. This permits better control of the discharge of separated particles. Vacuum suction of the separated particles can be effected, for instance, via openings (19) which are jointly provided for the group (21) of cyclone cells. The group of cyclone cells can furthermore be produced as a module, which can, for instance, be assembled from two parts (12, 13) in which like structural elements of a group of cyclones are combined into one respective part. This makes it possible to optimize the separation result with little structural complexity and at low production cost.Type: ApplicationFiled: August 28, 2002Publication date: March 27, 2003Applicant: Filterwerk Mann & Hummel GmbHInventors: Edvard Kopec, Volker Greif, Klemens Dworatzek, Jens Haehn, Marion Hartmann