Delta T Corporation

Corning Incorporated

Moog Gmbh

Elios Klemo

Richard Alan Oleson

J Carey Smith

Richard W Fizer

Richard Michael Aynsley

Mark Toy

Daniel Aloysius Nolan

Xin Chen

Dale Robert Powers

Jason Edward Hurley

Igor Rafaelyevich Mejouev

Jennifersue A Bowker

Snigdharaj Kumar Mishra

Troy Andreas Anderson

Ron G Flanary

Simit Mayank Patel

Oleksandr Kogan

Daniel J Halvorson

John B Langston

A fan system includes a motor, a rotatable hub, and a plurality of fan blades. The motor is coupled with the hub by a hollow drive shaft, such that the drive system of the fan system is gearless. The motor is controlled by a PFC-based control module, which is in communication with sensors that are configured to sense parameters associated with operation of the fan system. The control module is configured to react in certain ways to certain conditions detected by the sensors, such that the fan system uses feedback-based control algorithms. A remote control panel is in communication with the control module. The remote control panel is operable to display fault conditions detected by the sensors. Blade retainers prevent fan blades from falling when a fan blade breaks free from the hub. Pins prevent the hub from falling when the hub breaks free from the rotor.

Ceiling fan system with brushless motor

Methods for modifying multi-mode optical fiber manufacturing processes are disclosed. In one embodiment, a method for modifying a process for manufacturing multi-mode optical fiber includes measuring at least one characteristic of a multi-mode optical fiber. The at least one characteristic is a modal bandwidth or a differential mode delay at one or more wavelengths. The method further includes determining a measured peak wavelength of the multi-mode optical fiber based on the measured characteristic, determining a difference between the target peak wavelength and the measured peak wavelength, and modifying the process for manufacturing multi-mode optical fiber based on the difference between the target peak wavelength and the measured peak wavelength.

Methods for modifying multi-mode optical fiber manufacturing processes

A fan system includes a hub configured to rotate and a plurality of fan blades mounted to the hub. A motor is operable to rotate the hub. A motor controller in communication with the motor is configured to control operation of the motor. A control panel in communication with the motor controller has an input port for receiving data relating to operation of the fan system.

Ceiling fan system

An optical fiber including a multimode core having a radius, R, and a maximum relative refractive index, &#x394;, at a wavelength &#x3bb;, an inner clad layer surrounding the core and having a radial thickness, T, and a minimum relative refractive index, &#x394;, of about 0.0% at a wavelength of &#x3bb;, an intermediate clad layer surrounding the inner clad layer and having a radial thickness, T, and a maximum relative refractive index &#x394;and an outer clad layer surrounding the inner clad layer and having a radial thickness, T, and a maximum relative refractive index, &#x394;, at a wavelength of &#x3bb;. The optical fiber satisfies the following relationship: &#x394;&#x3e;&#x394;&#x3e;&#x394;, and the optical fiber exhibits an overfilled bandwidth of greater than or equal to about 1.5 GHz-km at &#x3bb;.

Multimode fiber with intermediate clad layer

A fan system includes a fan and a fan rotation speed control. The speed control is operable to command the fan to rotate at a speed selected from a certain range of rotation speeds. A fan oscillation detector may be coupled with the fan to detect oscillation of the fan as the speed control is operated to rotate the fan at various speeds among the range of fan rotation speeds. The fan oscillation detector may comprise an accelerometer or other device. Oscillation amounts detected by the oscillation detector are compared against each other or against an oscillation threshold value. A programmer device identifies fan rotation speeds at which the oscillation amount exceeds the threshold or is otherwise unacceptable, and programs the fan rotation speed control to prevent an operator from being able to select those speeds at which the oscillation amount exceeds the threshold or is otherwise unacceptable.

Method to minimize oscillation in ceiling fans

Growing community of inventors

Wilmington, NC, United States of America

Elios Klemo