Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8079927 | Power transmission system with continuously variable speed control The present invention is directed toward an apparatus for continuous speed variation of an output member with respect to a primary input member. In particular, the present invention provides a device having an output that rotates at reduced speed and increased torqu... | 12/20/2011 |
| 7867122 | Power transmission system with continuously variable speed control The present invention is directed toward an apparatus for continuous speed variation of an output member with respect to a primary input member. In particular, the present invention provides a device having an output that rotates at reduced speed and increased torqu... | 01/11/2011 |
| 7713157 | Planetary gear controlled alternator An alternator system includes an input shaft, a planetary gear assembly, a variable resistance generator, and a control unit. The alternator assembly is structured to produce an output current having a frequency. The planetary gear assembly disposed between, and ope... | 05/11/2010 |
| 7426971 | Hybrid driving unit and vehicle carrying the same A hybrid driving unit in which a first electric motor (20), a second electric motor (23), a transmission (22) and a power splitting planetary gear (21) are disposed in order from the front side (the side of an internal combustion engine) ... | 09/23/2008 |
| 7371201 | Hybrid transmissions having three motor/generators and three interconnected planetary gear members The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery and three electric machines serving interchangeabl... | 05/13/2008 |
| 7371202 | Mechatronic hybrid transmissions having three planetary gear sets and three motor/generators The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery and three electric machines serving interchangeabl... | 05/13/2008 |
| 7367910 | One-mode input-split electro-mechanical transmission with two fixed speed ratios A one-mode, input-split electrically variable transmission is provided with two motor/generators and a torque-transmitting mechanism that is operatively connected to a second member of a first differential gear set and selectively engageable to connect the second me... | 05/06/2008 |
| 7369930 | Method and apparatus to control hydraulic pressure in an electrically variable transmission A method and apparatus to control an electrically variable transmission, by dynamically controlling system main hydraulic clutch pressures, based upon required clutch capacity, as determined by output load of the transmission. Included is a method to regulate hydrau... | 05/06/2008 |
| 7367911 | Electrically variable transmission having three planetary gear sets, clutched input, two fixed interconnections and a stationary member The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as ... | 05/06/2008 |
| 7360616 | Method for controlling and regulating a power train of a hybrid vehicle and power train of a hybrid vehicle A method for controlling and regulating a power train of a hybrid vehicle and a power train of a hybrid vehicle having one internal combustion engine, one electric machine, one shifting element and one output in a power flow of the power train and designed with cont... | 04/22/2008 |
| 7356398 | Synchronous shift control in an electrically variable transmission Synchronous shift control in a multi-mode, hybrid transmission utilizes motor torques to control clutch synchronizations and torque conditions thereacross for substantially torque disturbance free shifting from one mode to another. ... | 04/08/2008 |
| 7354367 | Electrically variable transmission having three planetary gear sets, four fixed interconnections and clutched input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as ... | 04/08/2008 |
| 7347797 | Electro-mechanical transmission with six speed ratios and a method of redesigning a transmission An electro-mechanical transmission is provided having an input member for receiving power from an engine and output member. A plurality of gear members is operable for changing speed ratio between the input member and the output member. The input is connected with o... | 03/25/2008 |
| 7347798 | Electrically variable transmission having three planetary gearsets and four fixed interconnections The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as ... | 03/25/2008 |
| 7341535 | Hybrid transmissions having three motor/generators and a stationary planetary gear member The electrically variable transmission family provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery and three electric machines serving interchangeably as motors or generators... | 03/11/2008 |
| 7338401 | Two mode electrically variable transmission with equal forward and reverse input-split modal and fixed ratio performance An electrically variable transmission includes a power source, three differential gear sets, first and second motor/generators each connected to at least one of the gear sets, and torque-transmitting mechanisms. An input member transfers power from the power source ... | 03/04/2008 |
| 7335123 | Hybrid powertrain system and transformer module A powertrain system is provided that includes a first prime mover, a second prime mover and a transformer module. In an embodiment, the transformer module includes a planetary gearset having a first rotary element connected to the first prime mover, a second rotary ... | 02/26/2008 |
| 7329199 | In-line actuator apparatus and method An actuator having an electric motor with a rotor shaft engaged with a gear set within a housing is provided. As an example, the gear set may be a planetary gear set. The planetary gears are engaged with a disk. The disk is fixed to a shaft rod or other force transm... | 02/12/2008 |
| 7329201 | Electrically variable transmission having two or three planetary gear sets with two or three fixed interconnections The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including two or three differential gear sets, a battery, two electric machines serving interchangeably as motors or g... | 02/12/2008 |
| 7326140 | Power transmitting apparatus for hybrid vehicle Durability of a planetary gear set can be enhanced and noise can be reduced by utilizing a power transmitting apparatus for a hybrid vehicle that supports a planetary gear set in an axial direction and a perpendicular direction. In addition, because a parking gear i... | 02/05/2008 |
| 7324885 | Shift through neutral control in an electrically variable transmission A shift control for an electrically variable transmission shifts between modes through a neutral mode wherein the output is decoupled from the transmission. Normally, shifts between modes are accomplished synchronously through a duration of fixed-ratio operation. Ex... | 01/29/2008 |
| 7300374 | Multi-mode electrically variable transmissions having two planetary gear sets with one fixed interconnection The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors ... | 11/27/2007 |
| 7294079 | Electrically variable transmission having three planetary gear sets and two fixed interconnections and a stationary interconnection The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as ... | 11/13/2007 |
| 7288041 | Multi-mode electrically variable transmissions having two planetary gear sets with two fixed interconnections and clutched input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors ... | 10/30/2007 |
| 7282004 | Electrically variable transmission having three interconnected planetary gearsets, a stationary member and a fixed input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as ... | 10/16/2007 |
| 7282003 | Powertrain including input disconnect and accessory drive system for an electrically variable transmission A vehicle powertrain includes an engine connected to an input torque device including a torque isolator. A plurality of intermeshed accessory drive gears are connected to the torque device for driving accessories. A hybrid electromechanical transmission is connected... | 10/16/2007 |
| 7278942 | Transmission packaging and rotor support structure A support structure for a rotor within a transmission system is provided. The cantilevered support structure is umbrella-shaped to create an area of space between the rotor and the main shaft where other vehicle components, such as a gear set or system of clutches, ... | 10/09/2007 |
| 7278940 | Powertrain with electrically variable transmission providing improved gradeability A powertrain includes an engine with an engine output member and a transmission with two motor/generators and a transmission input member operatively connected to the engine output member. A control unit is configured to selectively cause a device to resist or preve... | 10/09/2007 |
| 7273435 | Multi-mode electrically variable transmissions having two planetary gear sets with one fixed interconnection and clutched input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors ... | 09/25/2007 |
| 7270203 | Electric machine for hybrid motor vehicle A power system for a motor vehicle having an internal combustion engine and an electric machine is disclosed. The electric machine has a stator, a permanent magnet rotor, an uncluttered rotor spaced from the permanent magnet rotor, and at least one secondary core as... | 09/18/2007 |
| 7264071 | Hybrid powertrain A hybrid powertrain incorporates an engine, two motor/generator mechanisms, and a planetary gearset. The planetary gearset has at least one torque-transmitting mechanism, which may be selectively energized to provide a brake on one of the motor/generators thereby re... | 09/04/2007 |
| 7261659 | Electrically variable transmission having two planetary gearsets The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors ... | 08/28/2007 |
| 7261657 | Electrically variable transmission having three interconnected planetary gear sets and fixed input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as ... | 08/28/2007 |
| 7261658 | Electrically variable transmission having two planetary gear sets with one stationary member and clutched input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors ... | 08/28/2007 |
| 7252611 | Electrically variable transmission having two planetary gear sets with one interconnecting member and clutched input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors ... | 08/07/2007 |
| 7252613 | Electrically variable transmission having two planetary gear sets with one stationary fixed interconnection The electrically variable transmission family provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors or generators, and two or... | 08/07/2007 |
| 7252612 | Electrically variable transmission having two planetary gear sets with one fixed interconnection and a stationary member The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first and second differential gear sets, a battery, two electric machines serving interchangeably as motors ... | 08/07/2007 |
| 7252614 | Electrically variable transmission having three planetary gear sets and clutched input The electrically variable transmission family of the present invention provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery, two electric machines serving interchangeably as ... | 08/07/2007 |
| 7247111 | Vehicle steering apparatus A vehicle steering apparatus comprises a rotation transmission mechanism 4 which connects a first shaft 3 connected to an operating member 2 with a second shaft 5 connected to vehicle wheels 9 so as to enable the rotation to be tra... | 07/24/2007 |
| 7246673 | Hybrid powertrain with engine valve deactivation A vehicle powertrain includes an engine and an electric motor in parallel hybrid combination. The engine includes a plurality of cylinders and a plurality of selectively deactivatable cylinder intake and exhaust valves so that every cylinder in the engine is charact... | 07/24/2007 |
