Ruud Lighting, Inc.

Michael J Kahn

Donald Wandler

Bernard Kohanski

Disclosed is an AC electrical apparatus including a vibrating device and a mounting structure supporting the device. In the improvement, a resilient insulator is interposed between the device and the mounting structure so that vibrations are isolated from the mounting structure. In a highly preferred embodiment, the insulator has a disc-like component between a standoff spacer and the mounting structure. Another such component is between the mounting structure and the head of the bolt which attaching the device to the structure. And a tube-like component of the insulator is between the bolt and such structure.

Electrical apparatus with noise-suppressing feature

A lighting fixture has a lamp and a housing for a lamp ballast. In the new fixture for providing bilevel illumination, the housing also contains a control device comprised of a dual capacitor and a 'random crossing' relay connected to the capacitor. A single electrical control wire is attached to the relay and extends from the housing to a control module for remotely controlling the level of illumination consumed by the fixture. In a system employing one or more of the new fixtures, the level of illumination provided by each fixture is controlled by applying a signal to the control wire and switching the relay independently of the instantaneous value of the voltage across the relay terminals. A new method for providing two levels of power to the fixtures (and, thus, two levels of illumination) is also disclosed.

Growing community of inventors

Shorewood, WI, United States of America

Michael J Kahn