Electric distribution systems and electrical take-off apparatus therefor
First Claim
1. Electrical take-off apparatus for use with an elongated electrical distribution busway containing at least two bus bars comprisinga housing,a pair of relatively spaced electrical contact supports rotatably mounted within said housing and having circuit selection members for rotating said contact supports in said housing,at least one electrical contact receiving passageway formed within said electrical contact supports,an elongated electrical contact passing through a said passageway in each said contact support, andspring means resisting movement of said electrical contact out of said passageway in one direction.
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Accused Products
Abstract
An electric distribution system which includes an elongated generally channel-shaped busway having a top wall and a pair of side walls with bus bars secured to the interior of the side walls. An electrical take-off is slidably secured within the busway with the take-off having a housing, a pair of spaced rotatable electrical contact supports having a circuit selection portion for rotating the contact support. At least one electrical contact passing through a passageway in the support and a spring which surrounds a portion of the support adjacent the passageway, urging the electrical contact in a first direction. The contact support is structured to be rotated to a first position wherein the electrical contact is disposed within the take-off housing and a second position wherein it projects outwardly into contact with a bus bar. The spring, in a preferred form, is a spring clip which is positioned in surrounding relationship with a portion of the electrical contact support and urges an electrical contact, in the form of a pin having its head received within a recess adjacent to the spring into intimate contact with the bus bars. Electrical wires connect the electrical contact and emerge from the housing of the take-off to facilitate transfer of electric current from the bus bars to the desired location.
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Citations
41 Claims
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1. Electrical take-off apparatus for use with an elongated electrical distribution busway containing at least two bus bars comprising
a housing, a pair of relatively spaced electrical contact supports rotatably mounted within said housing and having circuit selection members for rotating said contact supports in said housing, at least one electrical contact receiving passageway formed within said electrical contact supports, an elongated electrical contact passing through a said passageway in each said contact support, and spring means resisting movement of said electrical contact out of said passageway in one direction.
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21. An electric distribution system comprising
an elongated generally channel-shaped member having an upper wall and a pair of depending generally parallel side walls, at least one electrical bus bar mounted on the interior of each said side wall, electrical take-off apparatus being slidably received within the passageway of said elongated channel having a housing, a pair of relatively spaced electrical contact supports rotatably mounted within said housing and having circuit selection members for rotating said contact supports in said housing, at least one electrical contact receiving passageway formed within each said electrical contact support, an elongated electrical contact passing through a said passageway in each said contact support, and spring means resisting movement of said electrical contact out of said passageway in one direction and urging said electrical contact into contact with a said bus bar, whereby electrical continuity is established between said busway and said electrical take-off.
Specification