Back to results
US 4,728,758 AGranted
Load break switch and interlock assembly
AssigneeSiemens Energy & Automation, Inc.
InventorsSamir F. Farag, John D. Kleinecke, Thomas R. Little
Life of this patent
Estimating the term…
Abstract
A load break switch and interlock assembly is housed in a cabinet with a door. The switch assembly is oriented 90.degree. from a normal position along the backwall of the cabinet and is located on a sidewall. The switch handle protrudes through the front of the cabinet. The handle is horizontally oriented to interfere with the door when the switch is closed thereby preventing the door from being opened. When the switch is open, the handle is vertically oriented and does not interfere with the door.
Claims2
A load break switch and interlock assembly, comprising:
- a cabinet having a rear wall with bus bars attached thereto, a first sidewall, and a front wall having a jamb receiving a door and defining a front wall opening, the door opening outwardly from the cabinet;
- a switch assembly having a longitudinal axis, a plurality of switch contacts and a control shaft for controlling the position of the switch contacts, and being connected to the first sidewall with the longitudinal axis oriented generally parallel to the sidewall and generally perpendicular to the rear wall and front wall, the switch assembly being operable between an open and a closed position, the control shaft having an axis of rotation which is parallel to the longitudinal axis;
- and
- an operating handle fixed to the control shaft for operating the swtich assembly between the open and the closed positions, the operating handle being located outside of the cabinet such that the operating handle interferes with the opening of the door when the switch is in the closed position and does not interfere with the door when the switch is in the open position.
1 more element
Dependencies are inferred from the claim text.