BUS DUCT WITH PLUG-IN UNIT FOR CLOSELY SPACED BUS BARS

• US 3,744,002 A
• Filed: 06/30/1972
• Issued: 07/03/1973
• Est. Priority Date: 06/30/1972
• Status: Expired due to Term

• Current Assignee: Charles L. Weimer, Montgomery T. Popovich
• Original Assignee: Charles L. Weimer, Montgomery T. Popovich
• Inventors: Weimer, Charles L., Popovich, Montgomery T.
• Primary Examiner(s): Trammell, James D.
• Application Number:
  US05/267,813
• Time in Patent Office: 368 Days
• Field of Search: 339/22B 174/71B,68B
• US Class Current: 174/71.00B
• CPC Class Codes: H02G 5/08 Connection boxes therefor

Abstract

A section of bus duct with plug-in power take-off outlets in which there are a set of a plurality of elongated unitary bus bars having a pair of opposite wide faces and a pair of opposite narrow faces, the bus bars being insulated and disposed in surface-to-surface compact relationship within an elongated housing in which there is at least one opening in the housinb side facing the narrow faces of the bus bar, which opening is adapted for use with a plug-in element, the plug-in element having a plurality of pairs of spaced stabs engageable with an uninsulated edge portion of a corresponding bus bar, and the bus bars on opposite sides of the uninsulated portion of bus bar having notches adapted to receive the spaced stabs engageable with said uninsulated portion.

Claims

1. A section of bus duct with power take-off means, comprising an elongated housing, a plurality of elongated bus bars within the housing, the bus bars being separately insulated and disposed in surface-to-surface compact relationship, each bus bar comprising a pair of opposite wide side surfaces and a pair of opposite narrow edge surfaces, a plug-in element having a set of pairs of spaced stabs, each pair of stabs being engaged with a separate bus bar, and the bus bars having having notch means for receiving the stabs.

2. The section of bus duct of claim 1 in which the housing includes at least one plug-in region along the length thereof, each bus bar having an uninsulated portion aligned with the plug-in region, and the spaced stabs engaging opposite sides of the uninsulated portions of the bus bars.

3. The section of bus duct of claim 2 in which the notch means comprise a notch in each bus bar on the opposite sides of each uninsulated portion of the bus bars.

4. The section of bus duct of claim 3 in which the uninsulated portion of each bus bar is longitudinally spaced from that of another bus bar.

5. The section of bus duct of claim 4 in which each pair of spaced stabs is aligned with the uninsulated portion of a corresponding bus bar, one spaced stab extending into the notch on one side of the bus bar, and the other stab extending into the notch on the other side of the bus bar.

6. The section of bus duct of claim 1 in which each pair of spaced stabs extend into a notch of a corresponding bus bar and engage the walls of the bus bar forming the notch.