Wangs Alliance Corporation

Shelley S Wald

Voravit Puvanakijjakorn

Rong Feng Yu

David Xin Wang

Li Changyong

Zhou Tingting

Wai Ho Choy

Derrick A Wald

Eric Stefankiewicz

Kevin Darrah

Changyong Li

Apparatus and methods are provided. The apparatus may include a light-emitting diode ('LED') light source having a front and a back. The apparatus may include a light-transmitting body. The light-transmitting body may have a surface. The surface may define a pattern. The light-transmitting body may have light-scattering grains bonded to the surface. The light-transmitting body may be disposed in a position that is in front of the LED light source. It may be that no structure that is configured to maintain the position intervenes between the LED light source and the light-transmitting body. The light-transmitting body may include glass, polymer or any other suitable material. The pattern may be formed in the glass, polymer or other material. The pattern may be molded, blown, grinded, sawn, cut, milled, drilled, applied or of any other approach.

Enhanced lighting

Various embodiments are directed to use of RF and WiFi control in a fan device to control fan status and speed and/or fan light on/off status and intensity. A customer premises includes a WiFi router through which WiFi communications can be sent from a WiFi capable device, e.g., a cell phone, to control the fan device and its various functions. While WiFi control is via a WiFi router in the home, the control signals normally do not traverse the Internet or another external network. In addition to WiFi control, control of the fan device can be via an RF control device, e.g., a wall mounted controller. In some embodiments, the fan device reports its state and/or changes in state due to received commands to a server, and the server generates a recommended normal control schedule and an away control schedule and then uses the schedules to control fan device.

Methods and apparatus for controlling fan devices

Apparatus, methods and instructions for disinfecting air. The apparatus may include, and the methods may involve, a fixture. The fixture may include a germicidal light source. The fixture may include a fan. The fan may circulate air through a volume into which the germicidal light source propagates germicidal light. The light source may be configured to emit, upward from a horizontal plane, a beam that, absent reflection off an environmental object, does not cross the horizontal plane. The apparatus may include a shield that prevents light from the light source from crossing the horizontal plane. The sensor may face upward from the horizontal plane. The sensor may face downward from the horizontal plane.

Germicidal lighting

Apparatus and methods for enhanced lighting. The apparatus may include a light-transmitting body. The apparatus may include a light projector. The projector may be configured to propagate into the light-transmitting body an incoming incoherent light. The projector may be configured to propagate into the light-transmitting body an incoming visible coherent light. Emerging coherent light within a visible wavelength rage attributable to the incoming visible coherent light may have a first intensity. The first intensity may be greater than a second intensity. The second intensity may be an intensity of any emerging coherent light that is within the wavelength range and is attributable to the incoming incoherent light. Emerging light may be light that emerges from the light-transmitting body.

Apparatus for controlling fan system operation including one or more fan devices that include a DC fan motor and circuitry for powering and controlling the DC fan motor so that it provides smooth operation without being off kilter in time or speed when multiple fan devices powered from the same AC power supply line are started concurrently. An exemplary system includes one or more fan devices including a DC fan motor, an AC power interface circuit that provides AC filter power to a DC power supply circuit that provides power to the DC fan motor. The AC power interface circuit including: AC signal and ground input connections, an AC filtering circuit, and AC signal output connections. The DC fan motor may be brushless without an optical sensor and the AC filtering circuit may include: a varistor, a common mode choke, an X capacitor, and two Y capacitors.

Growing community of inventors

West Lake Hills, TX, United States of America

Shelley S Wald