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US 4,787,011 AGranted
Control center unit shelf assembly
AssigneeSquare D Company
InventorsHarold W. Stanfield, Richard A. VonRotz
Life of this patent
Estimating the term…
Abstract
A control center utilizing individual control units that hang from a unit shelf in a control center section. A tongue on the top of each control unit mates with the groove of the unit shelf to provide quick and easy alignment for electrical connections between the control unit and the vertical bus bar. The unit shelf and door are designed to be secured simultaneously to the cabinet.
Claims5
A control center comprising:
- a frame;
- a control unit;
- a shelf vertically positioning said control unit within said frame at predetermined heights, said shelf being mounted on said frame, said shelf having a surface juxtaposed said frame;
- a door providing access to the control unit, said door being mounted on said frame, said door having a surface positioned juxtaposed said frame;
- and
- a connector passing through said frame, said shelf and said door.
3 more elements
Dependencies are inferred from the claim text.