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| Number | Title | Issue Date |
| 7124754 | Method and device for creating a decorative block feature A method for creating a split face on a block, such as a retaining wall block, that includes curved features. The method includes using at least one curved blade to impart a splitting force on an unfinished block. The curve of the blade is imparted through the block... | 10/24/2006 |
| 7066167 | Block splitting assembly and method A masonry block that is produced from a workpiece that is split in a block splitting assembly which uses any of a variety of projections to supplement or replace the action of the splitting blade in splitting and dressing the workpiece. The resulting masonry block h... | 06/27/2006 |
| 7004158 | Block splitting assembly and method A masonry block that is produced from a workpiece that is split in a block splitting assembly which uses engagement surfaces that are enhanced with, for example, alternating ridges and valleys, preferably in combination with workpiece-engaging projections, to supple... | 02/28/2006 |
| 6910474 | Block splitting assembly and method A block splitting assembly and method which uses any of a variety of projections to supplement or replace the action of the splitting blade in splitting and dressing concrete or masonry block. A gripper assembly holds the block during splitting. ... | 06/28/2005 |
| 6874494 | Block splitting assembly and method A masonry block that is produced from a workpiece that is split in a block splitting assembly which uses engagement surfaces that are enhanced with, for example, alternating ridges and valleys, preferably in combination with workpiece-engaging projections, to supple... | 04/05/2005 |
| 6827073 | Block splitting tool A block splitting tool having a splitting blade that is formed by edges of a plurality of smaller splitter segments. The splitter segments are arranged in a side-by-side relation such that the edges form a substantially continuous blade that is generally corrugated ... | 12/07/2004 |
| 6539933 | Process and device for splitting stones A tool for shell or slab-splitting rocks or for wedging rocks in tunnels comprising a hydraulic/pneumatic cylinder (2) with an internal first piston (3), said first piston (3) being provided with a hydraulic/pneumatic pressure by supplying a fluid, prefer... | 04/01/2003 |
| 6460534 | Modular guillotine A known stone cutter having an upper jaw powered for a guillotine type cut has a transverse bar in the upper jaw. A series of cube shaped cutter units are mounted side by side along the transverse bar. An isostatic manifold connects all the cutter units f... | 10/08/2002 |
| 6321740 | Block splitter assembly The invention is a block splitting machine which uses an assortment of protrusions to supplement or replace the action of the splitting blade in splitting and dressing masonry block.... | 11/27/2001 |
| 6205993 | Method and apparatus for fabricating elongate crystalline members A method for fabricating elongate structural members from a unitary blank of crystalline material is provided. The blank has a predetermined length, width, and depth. A first substantially planar cut is made in the blank, the cut extending substantially a... | 03/27/2001 |
| 6050255 | Splitter blade assembly and station A splitter blade assembly adapted to form split faces on concrete masonry units including: a plurality of blade sections arranged to bound an opening; and a stop positioned within the opening so as to prevent debris from lodging in the opening during a sp... | 04/18/2000 |
| 5135727 | Automatic single crystal ingot disconnector for single crystal pulling apparatus An automatic single crystal ingot disconnector which is mounted on the uppermost chuck of the conventional single crystal ingot removing assembly, which uppermost chuck assembly is adapted to shift in the axial direction of the ingot being chucked; the pr... | 08/04/1992 |
