Patent ID: 7121048
Filing Date: 2006-10-17
Classification: E01C,E04F,Y10S

Abstract:
1. A method of removing a predetermined area and depth of formable material from an expanse of said formable material having a top surface, said method comprising: (a) providing a volume indicating tool, comprising: (b) pushing said volume indicating tool into said formable material until said material surface indicator is level with said top surface of said formable material, thereby pushing said depth guide to said predetermined depth; (c) pushing a shovel into said formable material until it touches said rib, and running said shovel along said top of said rib to gather formable material; (d) emptying said shovel at a location away from said volume indicating tool; and (e) repeating steps (c) and (d), until said area indicated by said area indicator is cleared of formable material down to said depth guide.