CA2385042A1 - Methods and system for generating electrical power from a pressurized fluid source - Google Patents
Methods and system for generating electrical power from a pressurized fluid source Download PDFInfo
- Publication number
- CA2385042A1 CA2385042A1 CA002385042A CA2385042A CA2385042A1 CA 2385042 A1 CA2385042 A1 CA 2385042A1 CA 002385042 A CA002385042 A CA 002385042A CA 2385042 A CA2385042 A CA 2385042A CA 2385042 A1 CA2385042 A1 CA 2385042A1
- Authority
- CA
- Canada
- Prior art keywords
- converter
- accordance
- pressurized fluid
- storage device
- energy storage
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
- H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
- H02P9/307—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage more than one voltage output
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
- F02C6/16—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads for storing compressed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/28—Trailers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/40—Working vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Eletrric Generators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A pressurized fluid system provides electrical power to a load and includes a fluid motor, a generator, an energy storage device and a controller. The system supplies fluid to the fluid motor, which provides a generator with power producing a voltage used to supply power to a load and provide energy to the energy storage device. The controller selects which of various sources within the system provides fluid to the fluid motor based on the operating mode of the system. When fluid supplied to the fluid motor is discontinued, the energy storage device discharges providing power to the load.
Claims (42)
1. A method for providing electrical power to a load using a pressurized fluid system, the system including an fluid motor connected to a generator electrically connected to an energy storage device, said method comprising the steps of:
generating a voltage with the generator;
supplying the voltage to a first converter;
providing at least a portion of the output of the first converter to a second converter;
storing at least a portion of the output of the first converter in the energy storage device; and supplying the output of the second converter to the load at a constant voltage.
generating a voltage with the generator;
supplying the voltage to a first converter;
providing at least a portion of the output of the first converter to a second converter;
storing at least a portion of the output of the first converter in the energy storage device; and supplying the output of the second converter to the load at a constant voltage.
2. A method in accordance with Claim 1 wherein said step of generating a voltage with the generator further comprises the steps of:
supplying the fluid motor with pressurized fluid; and using the fluid motor to provide power to the generator.
supplying the fluid motor with pressurized fluid; and using the fluid motor to provide power to the generator.
3. A method in accordance with Claim 1 further comprising the steps of:
regulating the voltage generated with the generator; and regulating a speed of the generator to correspond to a power operating point of the fluid motor.
regulating the voltage generated with the generator; and regulating a speed of the generator to correspond to a power operating point of the fluid motor.
4. A method in accordance with Claim 1 wherein said step of supplying the voltage to a first converter further comprising the steps of:
rectifying the voltage generated by the generator; and supplying the rectified voltage to a first converter.
rectifying the voltage generated by the generator; and supplying the rectified voltage to a first converter.
5. A method in accordance with Claim 1 wherein said step of storing at least a portion of the output of the first converter in the energy storage device further comprises the steps of:
generating voltage with the generator when the fluid motor is supplied with pressurized fluid;
storing, in the energy storage device, generated electrical energy that exceeds load consumption; and discontinuing the supply of pressurized fluid when the energy stored in the energy storage device reaches a predetermined amount.
generating voltage with the generator when the fluid motor is supplied with pressurized fluid;
storing, in the energy storage device, generated electrical energy that exceeds load consumption; and discontinuing the supply of pressurized fluid when the energy stored in the energy storage device reaches a predetermined amount.
6. A method in accordance with Claim 1 further comprising the steps of:
extracting stored energy from the energy storage device;
supplying the extracted stored energy to the second converter until the energy storage device drops to a predetermined energy level; and supplying pressurized fluid when the energy stored in the energy storage device drops to a predetermined energy level.
extracting stored energy from the energy storage device;
supplying the extracted stored energy to the second converter until the energy storage device drops to a predetermined energy level; and supplying pressurized fluid when the energy stored in the energy storage device drops to a predetermined energy level.
7. A method in accordance with Claim 1 wherein the energy storage device is an ultracapacitor, said step of storing a least a portion of the output of the first converter in the energy storage device further comprises the step of storing generated electrical energy that exceeds load consumption in the ultracapacitor.
8. A method for providing electrical power to a load using a pressurized fluid system, the system including an fluid motor connected to a generator electrically connected to an energy storage device, said method comprising the steps of:
generating a voltage with the generator;
supplying at least a portion of the voltage to a first converter;
supplying at least a portion of the voltage to a second converter;
storing a first output of the first converter in the energy storage device;
supplying a second output of the first converter to the second converter; and supplying the output of the second converter to the load at a constant voltage.
generating a voltage with the generator;
supplying at least a portion of the voltage to a first converter;
supplying at least a portion of the voltage to a second converter;
storing a first output of the first converter in the energy storage device;
supplying a second output of the first converter to the second converter; and supplying the output of the second converter to the load at a constant voltage.
9. A method in accordance with Claim 8 wherein said step of generating a voltage with the generator further comprises the steps of:
supplying the fluid motor with pressurized fluid; and using the fluid motor to provide power to the generator.
supplying the fluid motor with pressurized fluid; and using the fluid motor to provide power to the generator.
10. A method in accordance with Claim 8 further comprising the steps of:
regulating the voltage generated with the generator; and regulating a speed of the generator to correspond to a power operating point of the fluid motor.
regulating the voltage generated with the generator; and regulating a speed of the generator to correspond to a power operating point of the fluid motor.
11. A method in accordance with Claim 8 wherein said step of supplying at least a portion of the voltage to a first converter further comprising the steps of:
rectifying the voltage generated by the generator; and supplying the rectified voltage to a first converter.
rectifying the voltage generated by the generator; and supplying the rectified voltage to a first converter.
12. A method in accordance with Claim 8 wherein said step of storing a first output of the first converter in the energy storage device comprises the steps of:
generating voltage with the generator when the fluid motor is supplied with pressurized fluid;
storing, in the energy storage device, generated electrical energy that exceeds load consumption; and discontinuing the supply of pressurized fluid when the energy stored in the energy storage device reaches a predetermined amount.
generating voltage with the generator when the fluid motor is supplied with pressurized fluid;
storing, in the energy storage device, generated electrical energy that exceeds load consumption; and discontinuing the supply of pressurized fluid when the energy stored in the energy storage device reaches a predetermined amount.
13. A method in accordance with Claim 8 further comprising the steps of:
extracting stored energy from the electrical storage device;
supplying the extracted stored energy to the first converter until the energy storage device drops to a predetermined level;
supplying the extracted stored energy output from the first converter to the second converter; and supplying pressurized fluid when the energy stored in the energy storage device drops to a predetermined energy level.
extracting stored energy from the electrical storage device;
supplying the extracted stored energy to the first converter until the energy storage device drops to a predetermined level;
supplying the extracted stored energy output from the first converter to the second converter; and supplying pressurized fluid when the energy stored in the energy storage device drops to a predetermined energy level.
14. A method in accordance with Claim 8 wherein the energy storage device is an ultracapacitor, said step of storing a first output of the first converter in the energy storage device further comprises the step of storing generated electrical energy that exceeds load consumption in the ultracapacitor.
15. A system for using pressurized fluid to provide electrical power to a load, said system comprising:
a generator configured to generate a voltage;
a first converter configured to receive said voltage generated by said generator;
a second converter configured to receive at least a portion of an output of said first converter; and an energy storage device configured to store at least a portion of the output of said first converter.
a generator configured to generate a voltage;
a first converter configured to receive said voltage generated by said generator;
a second converter configured to receive at least a portion of an output of said first converter; and an energy storage device configured to store at least a portion of the output of said first converter.
16. A system in accordance with Claim 15 wherein said energy storage device is an ultracapacitor.
17. A system in accordance with Claim 15 wherein said energy storage device further configured to supply a stored voltage to said second converter.
18. A system in accordance with Claim 15 wherein said second converter configured to supply an output voltage to a load.
19. A system in accordance with Claim 15 further comprising a fluid motor configured to provide power to said generator.
20. A system in accordance with Claim 19 configured to supply pressurized fluid to said fluid motor.
21. A system in accordance with Claim 19 further configured to discontinue supplying pressurized fluid to said fluid motor when said energy storage device reaches a predetermined amount of stored energy.
22. A system in accordance with Claim 19 further configured to continue supplying pressurized fluid to said fluid motor when said energy storage device drops to a predetermined amount of stored energy.
23. A system in accordance with Claim 19 further comprising a plurality of pressurized fluid sources, said pressurized fluid sources configured to provide pressurized fluid to said fluid motor.
24. A system in accordance with Claim 23 further comprising a controller configured to select at least one of said pressurized fluid sources to provide pressurized fluid to said fluid motor.
25. A system in accordance with Claim 24 wherein said controller further configured to control the flow of pressurized fluid to and from said pressurized fluid sources.
26. A system for using pressurized fluid to provide electrical power to a load, said system comprising:
a generator configured to generate a voltage;
a first converter configured to receive at least a portion of said voltage generated by said generator;
an energy storage device configured to store a first output of said first converter, said energy storage device further configured to supply a stored voltage to said first converter; and a second converter configured to receive at least a portion of said voltage generated by said generator, said second converter further configured to receive a second output of said first converter.
a generator configured to generate a voltage;
a first converter configured to receive at least a portion of said voltage generated by said generator;
an energy storage device configured to store a first output of said first converter, said energy storage device further configured to supply a stored voltage to said first converter; and a second converter configured to receive at least a portion of said voltage generated by said generator, said second converter further configured to receive a second output of said first converter.
27. A system in accordance with Claim 26 wherein said energy storage device is an ultracapacitor.
28. A system in accordance with Claim 26 wherein said second converter configured to supply an output voltage to a load.
29. A system in accordance with Claim 26 further comprising a fluid motor configured to provide power to said generator.
30. A system in accordance with Claim 29 configured to supply pressurized fluid to said fluid motor.
31. A system in accordance with Claim 29 further configured to discontinue supplying pressurized fluid to said fluid motor when said energy storage device reaches a predetermined amount of stored energy.
32. A system in accordance with Claim 29 further configured to continue supplying pressurized fluid to said fluid motor when said energy storage device drops to a predetermined amount of stored energy.
33. A system in accordance with Claim 29 further comprising a plurality of pressurized fluid sources, said pressurized fluid sources configured to provide pressurized fluid to said fluid motor.
34. A system in accordance with Claim 33 further comprising a controller configured to select at least one of said pressurized fluid sources to provide pressurized fluid to said fluid motor.
35. A system in accordance with Claim 34 wherein said controller further configured to control the flow of pressurized fluid to and from said pressurized fluid sources.
36. A system for using pressurized fluid to provide electrical power to a load, said system comprising:
a generator configured to generate a voltage;
a fluid motor configured to provide power to said generator;
a plurality of pressurized fluid sources configured to supply pressurized fluid to said fluid motor; and a controller configured to select at least one of said plurality of pressurized fluid sources to provide pressurized fluid to said fluid motor.
a generator configured to generate a voltage;
a fluid motor configured to provide power to said generator;
a plurality of pressurized fluid sources configured to supply pressurized fluid to said fluid motor; and a controller configured to select at least one of said plurality of pressurized fluid sources to provide pressurized fluid to said fluid motor.
37. A system in accordance with Claim 36 wherein said controller further configured to control the flow of pressurized fluid to and from said plurality of pressurized fluid sources.
38. A system in accordance with Claim 36 further comprising a first converter configured to receive at least a portion of said voltage generated by said generator, and a second converter configured to supply an output voltage to a load.
39. A system in accordance with Claim 36 further comprising an energy storage device.
40. A system in accordance with Claim 39 further configured to discontinue supplying pressurized fluid to said fluid motor when said energy storage device reaches a predetermined amount of stored energy.
41. A system in accordance with Claim 39 further configured to continue supplying pressurized fluid to said fluid motor when said energy storage drops to a predetermined amount of stored energy.
42. A system in accordance with Claim 39 wherein said energy storage device is an ultracapacitor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15377299P | 1999-09-14 | 1999-09-14 | |
| US60/153,772 | 1999-09-14 | ||
| PCT/US2000/025137 WO2001020770A1 (en) | 1999-09-14 | 2000-09-14 | Methods and system for generating electrical power from a pressurized fluid source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2385042A1 true CA2385042A1 (en) | 2001-03-22 |
| CA2385042C CA2385042C (en) | 2010-04-06 |
Family
ID=22548684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2385042A Expired - Fee Related CA2385042C (en) | 1999-09-14 | 2000-09-14 | Methods and system for generating electrical power from a pressurized fluid source |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU760415B2 (en) |
| BR (1) | BR0013976A (en) |
| CA (1) | CA2385042C (en) |
| MX (1) | MXPA02002892A (en) |
| WO (1) | WO2001020770A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1516424A2 (en) * | 2002-06-18 | 2005-03-23 | Ingersoll-Rand Energy Systems Corporation | Microturbine engine system |
| CA2528145A1 (en) | 2003-06-02 | 2004-12-16 | Magnetic Applications Inc. | Controller for permanent magnet alternator |
| CN1833345B (en) | 2003-07-10 | 2010-11-03 | 磁应用股份有限公司 | Compact high power alternator |
| US7768165B2 (en) | 2006-02-02 | 2010-08-03 | Magnetic Applications, Inc. | Controller for AC generator |
| CA2714579A1 (en) | 2008-02-07 | 2009-08-13 | Magnetic Applications Inc. | Compact high power alternator |
| US9979338B2 (en) | 2015-06-30 | 2018-05-22 | Cnh Industrial America Llc | Alternator control system for a planter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2346176A1 (en) * | 1975-10-31 | 1977-10-28 | Milleret Michel | Vehicle braking energy recovery system - has hydraulic or pneumatic recuperator supplying fluid to motor which drives generator |
| AU661564B2 (en) * | 1992-03-06 | 1995-07-27 | Hino Jidosha Kogyo Kabushiki Kaisha | Braking and auxiliary power apparatus of internal combustion engine |
| US5438502A (en) * | 1992-12-22 | 1995-08-01 | Rozman; Gregory I. | VSCF system with voltage estimation |
| US5489765A (en) * | 1993-12-06 | 1996-02-06 | Fezza; Bernard F. | Electrical heating system with air-driven electrical generator |
| US5710699A (en) * | 1996-05-28 | 1998-01-20 | General Electric Company | Power electronic interface circuits for batteries and ultracapacitors in electric vehicles and battery storage systems |
-
2000
- 2000-09-14 CA CA2385042A patent/CA2385042C/en not_active Expired - Fee Related
- 2000-09-14 MX MXPA02002892A patent/MXPA02002892A/en active IP Right Grant
- 2000-09-14 BR BR0013976-9A patent/BR0013976A/en not_active Application Discontinuation
- 2000-09-14 AU AU73791/00A patent/AU760415B2/en not_active Ceased
- 2000-09-14 WO PCT/US2000/025137 patent/WO2001020770A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| AU7379100A (en) | 2001-04-17 |
| WO2001020770A1 (en) | 2001-03-22 |
| BR0013976A (en) | 2002-05-07 |
| MXPA02002892A (en) | 2003-10-14 |
| AU760415B2 (en) | 2003-05-15 |
| CA2385042C (en) | 2010-04-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150914 |