US20070286752A1 - Water Pump Especially for Ponds, Aquariums, Fountains or the Like - Google Patents

Water Pump Especially for Ponds, Aquariums, Fountains or the Like Download PDF

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Publication number
US20070286752A1
US20070286752A1 US11/760,045 US76004507A US2007286752A1 US 20070286752 A1 US20070286752 A1 US 20070286752A1 US 76004507 A US76004507 A US 76004507A US 2007286752 A1 US2007286752 A1 US 2007286752A1
Authority
US
United States
Prior art keywords
stator
motor
coils
water pump
housing part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/760,045
Other languages
English (en)
Inventor
Andreas Hanke
Herbert Lambers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
Original Assignee
Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik filed Critical Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
Assigned to OASE GMBH reassignment OASE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HANKE, ANDREAS, LAMBERS, HERBERT
Publication of US20070286752A1 publication Critical patent/US20070286752A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/064—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18—Windings for salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/066—Windings consisting of complete sections, e.g. coils, waves inserted perpendicularly to the axis of the slots or inter-polar channels

Definitions

  • the invention concerns a water pump especially for ponds, aquariums, fountains or the like, having a housing comprising a pump housing part, provided with an intake opening and an exit opening.
  • a pump housing part In the housing an impeller with a shaft is rotatably arranged.
  • a motor housing part is provided in which an electric motor with a stator having several coils arranged on several stator poles and a rotor rotating therein is received.
  • the pump is to be configured for a power range between approximately 100 and 900 Watt.
  • Such already relatively large pumps for use in ponds have in practice asynchronous motors that require a high material expenditure and are therefore relatively expensive. Also, their efficiency is often not satisfactory.
  • the invention concerns therefore the problem of providing a water pump whose efficiency in comparison to conventional pumps of the same power class is increased and that can be manufactured less expensively and can be operated comfortably.
  • a water pump wherein the motor is an electronically communicated motor; the stator is comprised of a pack of unitary laminations, respectively; control electronics for the motor are arranged in the motor housing part; and the stator with the coils and the control electronics is water-tightly encapsulated.
  • the efficiency of the pump can be significantly increased within a power range of approximately 100 to 900 Watt wherein the manufacture of the pump motor with a stator comprised of a pack of unitary sheet metal laminations can be effected in a material-saving and cost-reducing way.
  • control electronics for the motor control directly into the pump and arranging them within the motor housing part and encapsulating them together with the stator and the coils in a water-tight way, the risk of repairs of the pump can be minimized because all essential electric and electronic components are combined and perfectly protected from water by means of encapsulation.
  • the pump can be optimized when a two-pole permanent magnet is used as a rotor and a stator with six stator poles and therefore six coils received thereon is used.
  • the two-pole permanent magnet rotor can be essentially comprised of a unitary two-pole magnet ring that is diametrically magnetized. It can be produced in a simple and thus inexpensive way.
  • the stator is comprised according to the invention of a plurality of stacked stator sheet metal laminations that are stamped as unitary parts. This reduces the assembly costs in comparison to multi-part stators in which the stator poles are individually inserted.
  • FIG. 1 a perspective external view of a pump according to the invention
  • FIG. 2 a longitudinal section of the pump of FIG. 1 ;
  • FIG. 3 a cross-section of the stator of the pump motor in the plane III of FIG. 2 when mounting the coils;
  • FIG. 4 the object of FIG. 3 with completely mounted coils
  • FIG. 5 a perspective illustration of the object of FIG. 4 without windings on the coils.
  • the pump illustrated in FIG. 1 has a housing 1 that is essentially comprised of a pump housing part 2 and a motor housing part 3 .
  • the pump housing part 2 has an intake opening 4 and an exit opening 5 for water to be pumped.
  • the two housing parts 2 , 3 are connected in a simple way with one another, for example, as illustrated, by a bayonet closure 6 with additional screw connection 7 .
  • the interior of the pump is illustrated in section in FIG. 2 .
  • an impeller 8 is arranged in the pump housing part 2 on the shaft 9 ; the shaft is preferably made of ceramic material.
  • the impeller and the shaft 9 are driven in rotation by means of an electronically commutated motor (EC motor) that is arranged in the motor housing 3 .
  • EC motor electronically commutated motor
  • the shaft 9 extends from the pump housing part 2 into the motor housing part 3 wherein the motor is shielded from the impeller 8 mechanically by a bearing bracket 10 .
  • the motor is comprised essentially of a stationary stator lamination pack 12 on which coils 13 that are also stationary are provided as well as a rotor 14 which in the illustrated embodiment is advantageously formed as a two-pole permanent magnet. Between rotor 14 and shaft 9 there is a solid, closed iron ring 15 that is fixedly connected to both rotor and shaft and increases the magnetic flux of the motor significantly.
  • a circuit board 16 is arranged that comprises the entire control electronics.
  • the motor has a ground 17 at the stator 12 and a ground plate 18 at the back of the motor housing part 3 .
  • the rotor 14 with all movable parts and the stator 12 with all parts through which current flows are separated from one another by a can 19 surrounding the rotor 14 .
  • the can 19 widens into a large color-shaped flange 19 ′ for completely separating the pump housing part 2 and the motor housing part 3 .
  • the interior of the entire motor housing part 3 is encapsulated so that all free spaces are filled, for example, with a synthetic resin.
  • the encapsulating compound 20 thus embeds also the entire control electronics 16 so that the latter are not only protected from moisture but also protected mechanically against vibrations.
  • the encapsulating compound 20 also supports the can 19 so that it can be manufactured inexpensively of plastic material that is not reinforced externally.
  • the control electronics 16 may comprise a signal evaluation unit, not illustrated in detail, by which the received signals are used for speed regulation of the pump motor.
  • the control signals can be modulated directly by the mains voltage that is supplied to the motor. In this way, it is not necessary to provide a complex phase cutting control for speed regulation of the pump as it has been used up to now for conventional motors.
  • the operation for speed regulation can be realized in particular by means of an intermediate switch that can be remote-controlled and is arranged between the mains supply and the current supply cable for the pump.
  • This intermediate switch comprises a receiving module that receives the signals emitted by the remote control for changing the motor speed. In the intermediate switch element these signals are modulated onto the mains current and in this way transmitted to the control electronics of the pump.
  • the intermediate switch thus takes on only the task of signal transfer so that no power electronics are required.
  • stator 12 and the correlated coils 13 are preferably configured such that the coils 13 when being mounted can be slipped onto stator poles 22 of the stator 12 from the interior.
  • This and the configuration of the stator 12 with the coils 13 is illustrated in more detail in FIGS. 3 through 5 .
  • the stator poles 22 of the stator 12 of the pump according to the invention are therefore to be configured at their inner side essentially without widened portions so that slipping on the coils is possible.
  • the length a of the coils 13 must be smaller than the minimal spacing A 1 of two opposed inner pole sides as well as smaller than the length A 2 of the individual stator poles 22 .
  • the width b of the coils 13 must be less than the minimal spacing B 1 of an inner pole edge 42 to the inner pole edge 42 of the second to next stator pole 22 , respectively; i.e., between the two stator poles in question precisely one additional stator pole 22 is located.
  • the width b of the coils 13 must also be smaller than the minimal spacing B 2 of two outer edges of the coils in the mounted state between which again a further coil 13 or a further stator pole 22 is located. Finally, the width c of the stator poles 22 is to be selected smaller than the inner width C of the coils 13 .
  • the pump according to the invention is optimized in that, on the one hand, its dimensions are to be kept as small as possible and, on the other hand, its efficiency should be as high as possible; this should be achieved while the assembly should be improved.
  • the geometric conditions must be selected such that the coils 13 on the one hand can still be slipped on and, on the other hand, as many windings as possible can be arranged on the coils 13 .
  • an arc length BL of the stator poles 22 must be defined.
  • the sum of the arc length BL of all poles 22 could be precisely half of the circumference of the defined circle.
  • the arc length BL of each stator pole 22 is however reduced preferably by approximately 11 percent to 12 percent relative to the above defined initial length.
  • an angle a can be defined between two straight lines 50 that extend from the stator center and touch the inner pole edges 42 of the stator poles; the angle is between 0.88 times 360 degrees divided by the number n of the stator poles 22 and approximately 0.89 times 360 degrees divided by the number n of the stator poles 22 .
  • the coils 13 are inserted into the opening ds illustrated in FIG. 3 and are then slipped onto the stator poles 22 until they meet the stop.
  • the stator 12 of the illustrated embodiment has precisely six stator poles 22 .
  • the spacings for the windings of the coils 13 are very narrow so that the mounting expenditure and cost expenditure will be increased.
  • a motor that has only three poles has a reduced efficiency.
  • the pump according to the invention is characterized by high mounting comfort, minimal manufacturing costs, a high efficiency, and an optimized operating comfort. It is not prone to failure and therefore can be used without requiring much maintenance. Because of its high efficiency and the reduced material expenditure, the energy demand of such a pump in regard to manufacture as well as operation is minimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Physical Water Treatments (AREA)
  • Water Treatment By Sorption (AREA)
US11/760,045 2006-06-08 2007-06-08 Water Pump Especially for Ponds, Aquariums, Fountains or the Like Abandoned US20070286752A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006027001.0 2006-06-08
DE102006027001A DE102006027001A1 (de) 2006-06-08 2006-06-08 Wasserpumpe für insbesondere Teiche, Aquarien, Springbrunnen und dergleichen

Publications (1)

Publication Number Publication Date
US20070286752A1 true US20070286752A1 (en) 2007-12-13

Family

ID=38430477

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/760,045 Abandoned US20070286752A1 (en) 2006-06-08 2007-06-08 Water Pump Especially for Ponds, Aquariums, Fountains or the Like

Country Status (7)

Country Link
US (1) US20070286752A1 (fr)
EP (1) EP1865202B1 (fr)
CN (1) CN101086260B (fr)
AT (1) ATE477420T1 (fr)
CA (1) CA2591191C (fr)
DE (2) DE102006027001A1 (fr)
ES (1) ES2349154T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022483A1 (fr) * 2009-08-18 2011-02-24 Itt Manufacturing Enterprises, Inc. Pompe submersible encapsulée
US20140030121A1 (en) * 2012-07-25 2014-01-30 Nidec Motor Corporation Electric Motor Having a Partially Sealed Housing
US20140161630A1 (en) * 2012-12-05 2014-06-12 Mahle International Gmbh Electric fluid pump
US9016290B2 (en) 2011-02-24 2015-04-28 Joseph E. Kovarik Apparatus for removing a layer of sediment which has settled on the bottom of a pond
US20190128267A1 (en) * 2016-07-29 2019-05-02 RELIAX MOTORES SA de CV Integrated electric motor and fluid pump
WO2020210281A1 (fr) * 2019-04-11 2020-10-15 Schaeffler Technologies AG & Co. KG Moteur et pompe intégrés comprenant des bobines placées axialement

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009023231B4 (de) * 2009-05-29 2021-05-06 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Stator für einen Elektromotor
DE102012209487A1 (de) * 2012-06-05 2013-12-05 Mahle International Gmbh Hydrodynamische Pumpe
DE102012222359A1 (de) * 2012-12-05 2014-06-05 Mahle International Gmbh Elektrische Flüssigkeitspumpe
DE202016103632U1 (de) 2016-07-07 2016-07-29 Michael Rupp Ansaugpumpe
CN108271728B (zh) * 2018-02-06 2023-12-05 广东博宇集团有限公司 一种水族箱
CN112354927B (zh) * 2020-03-29 2021-09-07 苏州市臻湖流体技术有限公司 一种智能清洗直线泵
CN112392779A (zh) * 2020-11-27 2021-02-23 临城清泉水泵制造有限公司 一种高效节能型潜水电泵
CN114109847B (zh) * 2021-11-29 2024-03-19 汉江弘源襄阳碳化硅特种陶瓷有限责任公司 一种复合材料渣浆泵泵体及其制造方法

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791773A (en) * 1972-06-09 1974-02-12 Little Giant Corp Submersible pump
US4547135A (en) * 1982-12-11 1985-10-15 ALLWEILER AG Aktiengesellschaft Motor-pump unit
US4679313A (en) * 1985-03-08 1987-07-14 Kollmorgen Technologies Corporation Method of making a servo motor with high energy product magnets
US4998865A (en) * 1988-07-11 1991-03-12 Aisan Kogyo Kabushiki Kaisha Brushless DC pump with enclosed circuit board
US5096390A (en) * 1990-10-16 1992-03-17 Micropump Corporation Pump assembly with integral electronically commutated drive system
US5767606A (en) * 1992-11-27 1998-06-16 Hydor S.R.L. Synchronous electric motor, particularly for submersible pumps, and pump including the motor
US5866965A (en) * 1991-06-27 1999-02-02 Dana Corporation Variable reluctance motor having foil wire wound coils
US6065946A (en) * 1997-07-03 2000-05-23 Servo Magnetics, Inc. Integrated controller pump
US6524083B2 (en) * 2000-04-25 2003-02-25 Aisan Kogyo Kabushiki Kaisha Magnetic coupling pump
US20040052664A1 (en) * 2001-01-05 2004-03-18 Atsuji Saito High-pressure fuel feed pump
US20040076532A1 (en) * 2001-01-19 2004-04-22 Yoshiaki Miyazaki Canned motor and canned motor pump
US6821416B1 (en) * 2002-09-19 2004-11-23 Aquascape Designs, Inc. Pond system and related pump
US20050063843A1 (en) * 2003-09-18 2005-03-24 Beckett Corporation Submersible pump
US20050214135A1 (en) * 2004-03-26 2005-09-29 Yukio Shibuya Electric pump
US20060057002A1 (en) * 2004-09-15 2006-03-16 Aisan Kogyo Kabushiki Kaisha Electronic control unit and electric pump
US20070286723A1 (en) * 2006-04-28 2007-12-13 Olai Ihle Centrifgal pump
US7411326B2 (en) * 2005-05-17 2008-08-12 Federal Mogul World Wide, Inc. BLDC motor and pump assembly with encapsulated circuit board

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4301675A1 (de) * 1993-01-22 1994-07-28 Pierburg Gmbh Elektronisch kommutierter Elektromotor
DE4434448C2 (de) * 1994-09-27 1996-10-17 Richard Halm Naßläufer-Spaltrohrmotor für Pumpen
DE4438130A1 (de) * 1994-10-27 1996-05-02 Wilo Gmbh Spaltrohrmotor
DE19943862A1 (de) * 1999-09-13 2001-03-15 Wilo Gmbh Naßläuferpumpe mit Montageplatte
DE10052797A1 (de) * 2000-10-25 2002-05-08 Bosch Gmbh Robert Elektromotorisch angetriebene Pumpe und Verfahren zur Herstellung einer solchen Pumpe
DE102004056303A1 (de) * 2004-11-22 2006-06-01 Minebea Co., Ltd. Statoranrordnung für eine elektrische Maschine, Verfahren zur Herstellung einer Statoranordnung und Gleichstrommotor

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791773A (en) * 1972-06-09 1974-02-12 Little Giant Corp Submersible pump
US4547135A (en) * 1982-12-11 1985-10-15 ALLWEILER AG Aktiengesellschaft Motor-pump unit
US4679313A (en) * 1985-03-08 1987-07-14 Kollmorgen Technologies Corporation Method of making a servo motor with high energy product magnets
US4998865A (en) * 1988-07-11 1991-03-12 Aisan Kogyo Kabushiki Kaisha Brushless DC pump with enclosed circuit board
US5096390A (en) * 1990-10-16 1992-03-17 Micropump Corporation Pump assembly with integral electronically commutated drive system
US5866965A (en) * 1991-06-27 1999-02-02 Dana Corporation Variable reluctance motor having foil wire wound coils
US5767606A (en) * 1992-11-27 1998-06-16 Hydor S.R.L. Synchronous electric motor, particularly for submersible pumps, and pump including the motor
US6065946A (en) * 1997-07-03 2000-05-23 Servo Magnetics, Inc. Integrated controller pump
US6524083B2 (en) * 2000-04-25 2003-02-25 Aisan Kogyo Kabushiki Kaisha Magnetic coupling pump
US20040052664A1 (en) * 2001-01-05 2004-03-18 Atsuji Saito High-pressure fuel feed pump
US20040076532A1 (en) * 2001-01-19 2004-04-22 Yoshiaki Miyazaki Canned motor and canned motor pump
US6821416B1 (en) * 2002-09-19 2004-11-23 Aquascape Designs, Inc. Pond system and related pump
US20050063843A1 (en) * 2003-09-18 2005-03-24 Beckett Corporation Submersible pump
US20050214135A1 (en) * 2004-03-26 2005-09-29 Yukio Shibuya Electric pump
US20060057002A1 (en) * 2004-09-15 2006-03-16 Aisan Kogyo Kabushiki Kaisha Electronic control unit and electric pump
US7411326B2 (en) * 2005-05-17 2008-08-12 Federal Mogul World Wide, Inc. BLDC motor and pump assembly with encapsulated circuit board
US20070286723A1 (en) * 2006-04-28 2007-12-13 Olai Ihle Centrifgal pump

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011022483A1 (fr) * 2009-08-18 2011-02-24 Itt Manufacturing Enterprises, Inc. Pompe submersible encapsulée
US20110133582A1 (en) * 2009-08-18 2011-06-09 Itt Manufacturing Enterprises, Inc. Encapsulated submersible pump
US8633623B2 (en) 2009-08-18 2014-01-21 Xylem IP Holdings LLC. Encapsulated submersible pump
US9016290B2 (en) 2011-02-24 2015-04-28 Joseph E. Kovarik Apparatus for removing a layer of sediment which has settled on the bottom of a pond
US20140030121A1 (en) * 2012-07-25 2014-01-30 Nidec Motor Corporation Electric Motor Having a Partially Sealed Housing
US9130413B2 (en) * 2012-07-25 2015-09-08 Nidec Motor Corporation Electric motor having a partially sealed housing
US20140161630A1 (en) * 2012-12-05 2014-06-12 Mahle International Gmbh Electric fluid pump
US9366259B2 (en) * 2012-12-05 2016-06-14 Mahle International Gmbh Electric fluid pump
US20190128267A1 (en) * 2016-07-29 2019-05-02 RELIAX MOTORES SA de CV Integrated electric motor and fluid pump
WO2020210281A1 (fr) * 2019-04-11 2020-10-15 Schaeffler Technologies AG & Co. KG Moteur et pompe intégrés comprenant des bobines placées axialement
CN113474558A (zh) * 2019-04-11 2021-10-01 舍弗勒技术股份两合公司 包括沿轴向安置的线圈的一体化的马达和泵
US11168690B2 (en) 2019-04-11 2021-11-09 Schaeffler Technologies AG & Co. KG Integrated motor and pump including axially placed coils

Also Published As

Publication number Publication date
CA2591191A1 (fr) 2007-12-08
DE502007004689D1 (de) 2010-09-23
EP1865202A2 (fr) 2007-12-12
ES2349154T3 (es) 2010-12-28
CN101086260A (zh) 2007-12-12
CN101086260B (zh) 2012-04-04
DE102006027001A1 (de) 2007-12-13
EP1865202B1 (fr) 2010-08-11
EP1865202A3 (fr) 2008-06-04
ATE477420T1 (de) 2010-08-15
CA2591191C (fr) 2015-01-27

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Legal Events

Date Code Title Description
AS Assignment

Owner name: OASE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HANKE, ANDREAS;LAMBERS, HERBERT;REEL/FRAME:019401/0137

Effective date: 20070514

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION