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US 9,528,258 B1Granted
Manhole ring support for unified concrete pours around grease interceptor
AssigneeThermaco, Inc.
InventorsTravis McBride, William C Batten
Life of this patent
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Abstract
A kit of materials to make a support for one or more manhole rings during a concrete pour around a prefabricated grease interceptor includes a base, a plurality of vertical supports, and a peripheral grid to surround a top of the prefabricated grease interceptor at a position to support a manhole seating ring. The vertical supports are long enough that they extend from the base to the peripheral grid for most grease interceptor installations or can be cut to size to position the peripheral grid.
Claims6
A method of installing a prefabricated grease interceptor having a neck, the method comprising the acts of:
- excavating a pit deep enough to allow the grease interceptor to be entirely underground, with access from above ground to the grease interceptor through a manhole ring,
- affixing a manhole ring support to the grease interceptor, including adjusting lengths of a plurality of vertical supports under the manhole ring so that they position a top of the manhole ring at ground level,
- lowering the grease interceptor with manhole ring support into the pit, connecting piping to the grease interceptor,
- positioning the manhole ring on the manhole ring support with an annular barrier ring between an inside of the manhole ring and an outside of the neck of the grease interceptor, pouring wet concrete around the grease interceptor within the pit up to a level where concrete flows under the manhole ring until concrete is barred by the annular barrier ring, and allowing the concrete to cure.
1 more element
Dependencies are inferred from the claim text.