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US 4,039,744 AGranted
Electrical bus support
AssigneeSquare D Company
InventorJames J. Seaquist
Life of this patent
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AssigneeSquare D Company
InventorJames J. Seaquist
Estimating the term…
A three part bus support for supporting a cylindrical tubular bus on an insulator comprises a base and two identical end portions. Each end portion has a hook portion defining an opening and a base portion which is connectible to either of the opposite ends of the base at one of two wall portions formed along opposed ends of the base. When the end portions are connected to the base, the openings defined by the hooks are aligned for receiving a tubular bus. A projection of one end of the base portion of each end portion is tangent to an inner surface of the hook portion where the bus exerts a force caused by wind, and the base is asymmetrical about a longitudinal axis passing through the opposite ends of the base to provide improved locations of fulcrums of lever arms of the wind forces. A pair of leaf springs oriented to prevent abrasion of the bus and received in respective recesses in inner sides of enlarged ends of the hook portions serve as static eliminators to insure that the bus maintains electrical continuity with the support structure during vibration to prevent radio interference problems. The outer surfaces of the hook portions are rounded and smooth to provide improved corona characteristics.
A bus support for a cylindrical electrical bus comprising a three-part casting including a base adapted to be secured to an insulating support structure and two spaced end portions assembled on respective opposite ends of the base so as to extend upwardly from the base, the end portions having respective substantially circular openings therethrough which are axially aligned with each other for slidably receiving and retaining the bus, and connecting means connecting the end portions to the base, including outwardly directed, horizontally aligned flanges at the opposite ends of the base, respectively, and complementary grooves in respective base portions of the end portions receiving the flanges, respectively.
A bus support for a cylindrical electrical bus comprising a three-part casting including a base adapted to be secured to an insulating support structure and two spaced end portions assembled on respective opposite ends of the base so as to extend upwardly from the base, the end portions having respective substantially circular openings therethrough which are axially aligned with each other for slidably receiving and retaining the bus, the openings being defined by respective hook portions extending laterally and upwardly from respective base portions of the end portions, each hook portion partially encircling a bus when a bus is supported by the support, a recess formed in an underside of an outer end portion of each hook portion, and a spring member disposed at each recess, each spring member having a rounded portion extending beyond the inner surface of its associated hook portion for contacting the bus thereby to provide electrical continuity between the bus support and the bus for eliminating radio interference, and connecting means connecting the end portions to the base.
A bus support for a cylindrical electrical bus comprising a three-part casting including a base adapted to be secured to an insulating support structure and two spaced end portions assembled on respective opposite ends of the base so as to extend upwardly from the base, the end portions having respective substantially circular openings therethrough which are axially aligned with each other for slidably receiving and retaining the bus, the openings being defined by respective hook portions extending laterally and upwardly from respective base portions of the end portions, each hook portion partially encircling a bus when a bus is supported by the support and having a radius selected so that an outer surface of a bus received within the opening is juxtaposed to an inner side surface of the hook portion, the upper surface of each base portion and the inner surface of each hook portion being uniformly curved with a substantially constant radius along the length thereof to prevent damage to a bus slidably moving through the opening, and connecting means connecting the end portions to the base.
Dependencies are inferred from the claim text.