Invention Grant
US09127447B2 Frame for an inlet of a catch basin or manhole 有权
水槽或沙井入口的框架

Frame for an inlet of a catch basin or manhole
Abstract:
A frame for a cover for one of a catch basin and a manhole having an inlet, the frame comprising: a frame skeleton having a hollow body having a first end and a second end, the second end being adapted to be inserted into the inlet of the catch basin or manhole, the frame skeleton having at least one flange extending laterally outwardly from the first end of the hollow body and a concrete sleeve disposed around the hollow body on an external surface thereof, the concrete sleeve being adapted to be disposed between the inlet of the one of the catch basin and manhole and the at least one flange, the concrete sleeve having a top surface abutting the under surface of the at least one flange, the under surface of at least one flange covering the top surface of the concrete sleeve.
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