Patent ID: 9493915
Filing Date: 2016-11-15
CPC Classification: A01G,E01C

Claim Text:
1. A method for filling a tree well comprising: locating a tree in the tree well, where the tree well is defined by a bottom layer of soil and at least one side wall that is a concrete sidewalk; creating a perimeter around a trunk of the tree and within the tree well; forming a gravel layer by spreading gravel in the tree well and over the soil in between the side wall and the perimeter so that the gravel layer is (a) positioned over the bottom layer of soil, (b) abutted to the side wall, and (c) features a side wall along the perimeter; mixing an epoxy aggregate and crushed stone into a first mixture via a cement mixer; forming a crushed stone layer by pouring the first mixture into the well while the first mixture is still wet, where said crushed stone layer is positioned over the top of said gravel in between the side wall and the perimeter so that the crushed stone layer is (a) positioned over the gravel layer (b) abutted to the sidewall, and features a side wall along the perimeter; compacting the crushed stone layer so that a top surface of the crushed stone layer is substantially flush with a top surface of the sidewalk finishing the top surface of the crushed stone layer with a trowel; mixing rubber buffings with an aromatic binder to form a second mixture in a mortar mixer; creating a base of a trunk collar by pouring the second mixture into the perimeter next to the trunk of the tree over the soil and within the side walls of the gravel and crushed stone layers to about the same level as the the top surface of the crushed stone layer; mixing ethylene propylene diene monomer (EPDM) with an aromatic binder to form a third mixture in the mortar mixer; creating a top layer of the trunk collar by pouring the third mixture on top of the base of the trunk collar; and, letting the first, second, and third mixtures dry.