Skf Canada Limited

Nova Corporation of Alberta

Aktiebolaget Skf

Lincoln Industrial Corporation

Revolve Magnetic Bearing Inc.

Skf USA Inc.

Timothy Andrew Harris

Shawn Gibson

Lois Gayle Wride

Daren Paul Tremaine

Craig McFarland

Nathan Donovan

Neila Ben Amar

Brian Mitchell

Waheeduz Zaman

Clayton Bear

Vaclav Kulle

Udell So

Jeffrey Russell Smithanik

Theodor Bardas

Cal Oleksuk

Gregory W Smith

Gordon Brailean

Raj Saini

Stephen Matthew Darcy Pickett

A magnetic bearing assembly having a signal conditioning circuit that includes an offset generator for adding a digitally controllable analog offset to compensate for displacement error in unbalanced inductive sensors.

Analog compensation of inductive sensors

A system for maintaining the operating condition of a machine is provided. The system includes a dispensing device having: an interchangeable control module, the interchangeable control module including control hardware that provides a central processing unit, a data storage memory, and communication modules. The dispensing device is configured to dispense lubricant in order to maintain the operating condition of the machine. The interchangeable control module is configured to interchangeably control and interchangeably reside in either a fixed or a portable dispensing device. The interchangeable control module communicates to an external or internal intermediary computing device. The interchangeable control module includes interface hardware for facilitating with at least one condition monitoring sensors, and based on measurements received from the at least one condition monitoring sensor, the interchangeable control module determines the amount or type of lubricant required, and creates a maintenance action to be completed.

Interchangeable control module for fixed and portable lubricant dispensing devices

A dispensing device for maintaining the operating condition of a machine is provided. The dispensing device includes an interchangeable control module, the interchangeable control module including control hardware that provides at least one of a data storage memory, a central processing unit, interface hardware for condition monitoring sensors, an intermediary computing device, a display device, and communication modules. The dispensing device is configured to dispense lubricant in order to maintain the operating condition of the machine. The interchangeable control module is configured to interchangeably control and interchangeably reside in both a fixed and a portable dispensing device. Also, various related systems including the dispensing device are provided.

A holder for mounting a communication device to a grease gun, which has a housing and a control disposed within the housing, includes a bracket connected with the grease gun. The bracket has a first end coupled with the grease gun housing and a second end coupleable with the communication device so as to secure the device to the grease gun. Preferably, the holder further includes a frame coupled with the bracket second member for receiving the communication device to removably couple the communication device with the grease gun. The communication device may be a smartphone, a portable media player, a portable computing device or any similar device and wirelessly communicates with a control within the grease gun housing.

Holder for a communication device used with a grease gun

Aspects include performing online condition monitoring. Online condition monitoring includes compiling the digital sensor data to produce compiled data and processing the compiled data via a signal analysis operation to produce digitally analyzed data. Further, online condition monitoring includes comparing the digitally analyzed data to at least one threshold to output corresponding values and utilizing the corresponding value to determine whether to issue an event notification.

Low cost online condition monitoring

An apparatus includes an annular rotor that rotates about a rotational axis. A magnetic bearing system influences the position of the annular rotor in three-dimensional space and includes at least three actuators, wherein at least one actuator generates a force for lifting the annular rotor in a vertical direction, at least one actuator influences the position of the annular rotor in the radial direction of the annular rotor and at least assists in maintaining an annular gap between at least one non-magnetic bearing and the annular rotor during operation and at least one actuator influences the position of the annular rotor in an axial direction of the annular rotor. At least one radiation source may be fixedly mounted on the annular rotor.

Diagnostic scanning apparatus

A method of controlling switching of a tri-state switching amplifier having two switching legs, two switches in each leg, and a load connected to the junction between the switches of each leg, a power supply and a capacitor connected to the opposite ends of each leg, a first pair of the switches defining an idle state in which current circulates through the load and the first pair of switches, a second pair of the switches defining a Charge state in which the load is connected to the power supply and current through the load increases and a third pair of switches defining a Discharge state in which the load is connected to the power supply and current through the load decreases, the method comprising generating a first PWM signal at the beginning of each pulse of a clock signal; generating a second PWM signal when a binary current error signal changes state; generating, at the beginning of each pulse of the clock signal, a Direction signal which is the inverse of the current error signal; and placing the amplifier in the idle state when the second PWM signal is present and otherwise placing the amplifier in the Charge state for one state of the Direction signal and placing the switches in the Discharge state for the other state of the Direction signal.

Current mode switching for tri-state amplifiers in magnetic bearing

The axial forces imposed on a rotor of a fluid machine such as a compressor is controlled by modulating the pressure supplied to a piston and cylinder device acting between the rotor shaft and housing. A parameter indicative of axial force on the rotor during operation is monitored and changes in the magnitude and direction of the axial forces countered by varying the pressure in the cylinder. The net axial forces imposed on the shaft may thus be controlled in a predetermined range.

Control system for regulating the axial loading of a rotor of a fluid

A rotary electrical machine comprises a rotor assembly and a stator assembly separated by an air gap. The stator is formed from discrete generally pie-shaped pole pieces having a progressively increasing radial slot to accommodate winding of the coil. The pole pieces are preferably wound from a grain oriented ferromagnetic tape to improve the permeability of the pole and its saturation level. Groups of poles may be separated into sectors. In an alternative embodiment, at least some of the pole pieces are formed from both a permanent magnet and ferromagnetic tape to provide a constant bias between the rotor and stator assemblies.

Growing community of inventors

Calgary, Canada

Timothy Andrew Harris