Invention Grant
- Patent Title: Mold box for making first and second wall blocks
- Patent Title (中): 用于制造第一和第二墙砖的模具盒
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Application No.: US10754454Application Date: 2004-01-09
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Publication No.: US07780141B2Publication Date: 2010-08-24
- Inventor: William B. Dawson , Robert A. MacDonald
- Applicant: William B. Dawson , Robert A. MacDonald
- Applicant Address: US MN Bloomington
- Assignee: Keystone Retaining Wall Systems, Inc.
- Current Assignee: Keystone Retaining Wall Systems, Inc.
- Current Assignee Address: US MN Bloomington
- Agency: Popovich, Wiles & O'Connell, P.A.
- Main IPC: B28B7/24
- IPC: B28B7/24

Abstract:
A method of making a wall block and a mold box therefore. The wall block design maximizes the use of the mold box. The method produces wall blocks having a large surface area front face compared to the front face size of prior art blocks. The blocks have about one third more front surface area. This results in faster construction of walls and a faster construction sequence. The method of making the blocks makes efficient use of mold space and material, resulting in higher production yields and/or higher total daily production square footage.
Public/Granted literature
- US20050016106A1 Method of making wall block Public/Granted day:2005-01-27
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