Hubbell Limited

Lewis W Kenyon

Isaac Lynnwood Flory, Iv

Gerry F Thornton

Stephen M Stafford

Ralph W Sutherland

A luminaire housing transfers mechanical loads and stresses imparted by an electrical power supply through a bracket to a support, thereby preventing damage to the luminaire housing. The luminaire housing has an aperture that is adapted to receive the electrical power supply. A first fastener hole in the luminaire housing is adapted to receive a first fastener to secure the luminaire housing to the support. A bracket has a first opening aligned with the luminaire housing aperture and a second opening aligned with the first fastener hole.

Structural reinforcing bracket for a luminaire housing

A micro porous gas breather/filter assembly can be coupled to a housing of an electrical enclosure. The filter assembly has a two portion housing with the filter disposed between them. An adhesive on the filter attaches the filter to one or both portions of the housing. The filter allows gas to pass from the enclosure through the filter and to the atmosphere, but prohibits liquid from passing into the enclosure device. By filtering gases and liquids in this manner, the filter vents explosive and/or flammable gases from an electrical enclosure, while preventing liquid and other contaminants from entering the enclosure and damaging the electrical device or its wiring.

Micro-porous filter

A method and apparatus are provided to retrofit a gas discharge lamp ballast designed for use with a first lamp having a first power rating to be used with a second lamp having a second power rating. The ballast has a core, a coil and a serially-connected ballast capacitance device and is characterized by a first net impedance of the ballast reactance to allow operation of the first lamp in an operating range in which the first lamp is designed to operate. When the first lamp is replaced with a second lamp having a different lamp impedance than the first lamp, the capacitance of the ballast capacitance device is selected so as to change the first net impedance of the ballast to a second net impedance which allows the ballast to maintain proper operation of the second lamp in accordance with its specifications and rating.

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Blacksburg, VA, United States of America

Lewis W Kenyon