Electric resistor
AssigneeWestinghouse Electric Corp.
InventorNicholas A. Salemi
Life of this patent
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Abstract
An electric resistor assembly for use in motor starters or other electric apparatus characterized by an elongated mounting strap having terminals at both ends respectively for panel mounting, a plurality of insulating refractory bodies on the strap in end-to-end abutment, one end wall of each body having a bulged portion protruding from the end wall, the other end wall having a cavity corresponding to and receptive of the bulged portion of an adjacent body, and a helical resistance conductor mounted on and surrounding the bodies.
Claims9
An electric resistor assembly comprising an elongated mounting strap having terminals at both ends respectively for panel mounting, the mounting strap having a flexing direction, a plurality of insulating refractory bodies disposed on the strap in end-to-end abutment, the bodies having opposite vertical side walls, opposite end walls, and upper and lower edges, one end wall of each body having a bulged portion protruding from the end wall, the other end wall having a concavity corresponding to and receptive of the bulged portion of adjacent body, to enable angular motion of the adjacent bodies in the flexing direction, and a helical resistance conductor mounted on and surrounding the bodies.
An electric resistor assembly comprising an elongated mounting strap having terminals at both ends respectively for panel mounting, a plurality of insulating refractory bodies disposed on the strap in end-to-end abutment, the bodies having U-shaped cross-sections including a pair of spaced legs and an intermediate side, each leg comprising a projection from both ends of the body, and adjacent bodies being mounted on the strap with the intermediate sides adjacent opposite sides of the strap and with the projections of adjacent bodies in overlapping positions.
Dependencies are inferred from the claim text.