Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7573217 | Methods and systems for automatic rotation direction determination of electronically commutated motor A method for determining a direction of rotation for an electronically commutated motor (ECM) is described. The motor is configured to rotate a blower and the method comprises rotating the blower using the ECM and determining if the resulting blower rotation is indi... | 08/11/2009 |
| 7535186 | Methods and systems for controlling operation of electronicallly commutated motors A method for resolving addressing conflicts between multiple electronically commutated motors communicatively coupled to a system controller is described. The method includes sending a command, from the system controller, to an address and determining, based on resp... | 05/19/2009 |
| 7482770 | Methods and systems for providing PWM control signals to an electronically commutated motor A method for controlling the operation of an electronically commutated motor (ECM) with an ECM control assembly is described. The method includes applying a single pulse width modulated (PWM) signal to a plurality of inputs of a power output module. The method also ... | 01/27/2009 |
| 7436138 | Methods and systems for emulating an induction motor utilizing an electronically commutated motor A method for emulating induction motor operation using an electronically commutated motor (ECM) is described herein. The method includes receiving, at the ECM, a desired operating torque, accessing induction motor operating characteristics stored within the ECM, and... | 10/14/2008 |
| 7420302 | Mid shield bearing support of an electric motor An electric motor includes a motor enclosure, a motor-bearing assembly, a motor control unit, a mid shield, and a bearing. The motor-bearing assembly is configured for placement within the motor enclosure and has a shaft extending therefrom. A portion of the motor c... | 09/02/2008 |
| 7358634 | Enclosure for an electric motor that incorporates a mid shield A motor is described that includes a motor enclosure, a motor winding assembly, a motor control unit, and a mid shield. The motor enclosure includes a plurality of protrusions into the motor enclosure in a substantially configuration around its perimeter and the mot... | 04/15/2008 |
| 7352095 | Electric motor that provides motor length reduction A method for reducing a length of a motor is described. The method includes engaging a motor enclosure at a first end with a motor winding assembly, inserting a mid shield into the motor enclosure from a second end of the enclosure, and fastening the mid shield to t... | 04/01/2008 |
| 7256522 | Motor control packaging for an electric motor A motor is described that includes a motor enclosure, a mid shield, and a motor control unit having a chassis and a plurality of components mounted on the chassis. The motor enclosure includes a plurality of protrusions extending into the motor enclosure. The mid sh... | 08/14/2007 |
| 7180215 | Mid shield for an electric motor A motor is described that includes a motor enclosure, a motor-bearing assembly, a motor control unit, and a mid shield. The motor-bearing assembly is configured for placement within the motor enclosure, and a portion of the motor control unit is configured for place... | 02/20/2007 |
| 7152711 | Spline lubrication apparatus for lubricating a spline A spline lubrication apparatus is disclosed for lubricating a spline of a pump drive. The apparatus includes a housing and a rotatable spline disposed within the housing. The spline includes a shaft having a first and a second end and an external surface extending b... | 12/26/2006 |
| 7106019 | Digital communication link A serial interface circuit electrically connected to a controller to control an electric motor. The interface circuit includes a controller circuit and a motor circuit. The controller circuit includes a transmitter and a receiver circuit, and the motor circuit inclu... | 09/12/2006 |
| 7077708 | Connector assembly A connector assembly configured to engage a motor connector having a plurality of contacts is described. The connector assembly includes a plurality of receptacle terminals and first and second housing portions each having channels formed therein for insertion of th... | 07/18/2006 |
| 5476164 | Solenoid actuated mechanical clutch A solenoid operated actuator mechanism for positioning a shift fork in a double clutch arrangement for use in a transmission includes a pair of solenoid actuators operatively connected to a shaft that is fixed to the shift fork for positioning the shift f... | 12/19/1995 |
| 5333380 | Method of shaft mounting a single tapered bushing A shaft-mounted bushing for connecting a rotating member to a shaft. The bushing includes a frame receiving a hub rotatably mounted therein. The hub includes an opening at one end thereof for receiving a shaft from the one end thereof. The hub includes a ... | 08/02/1994 |
