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| Number | Title | Issue Date |
| 7428900 | 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... | 09/30/2008 |
| 7404755 | Process and apparatus for artificially ageing blocks A process for artificially ageing blocks, in particular concrete blocks, vitrified bricks and natural stones, provides that the blocks are applied to an underlying surface. Essentially freely movable distressing bodies are applied to the surface to be worked of the ... | 07/29/2008 |
| 7377275 | Imitation stone cutter A device for precise cutting of imitation stone. An upper blade is mounted to an upper blade mount assembly for vertical sliding movement over a stationary lower blade. Downward movement of a handle rotates a cam surface that engages a convex upper surface of the up... | 05/27/2008 |
| 7308892 | Method and apparatus for forming cracks in concrete A method of forming at least one crack (11) in a concrete article such as a concrete slab (10) having at least one crack promoting groove (28) formed in the surface (25) thereof and/or at least one crack promoting insert (12) cast ... | 12/18/2007 |
| 7281537 | Multi-station block-texture modifying system and block-spacer Disclosed herein is a block-texture-modifying apparatus for modifying the surface texture of blocks. The apparatus comprises a support for supporting blocks thereon, a multi-station block-texture modifier for engaging blocks on the support, and a translational displ... | 10/16/2007 |
| 7243646 | Apparatus and method for shearing reinforced concrete piles and metal piles and crushing reinforced concrete piles An apparatus (10) for shearing off reinforced concrete piles and metal piles, casing and conductor pipes, and crushing reinforced concrete piles has a frame (11) with first and second ends and a cutter blade (41) movably mounted on the frame dri... | 07/17/2007 |
| 7146974 | Block splitting assembly and method A concrete block is produced from a workpiece that is split by a plurality of splitting assemblies, each of which comprises a multiplicity of peaks, for example alternating ridges and valleys. A splitting assembly is positioned to engage each of the top, bottom and ... | 12/12/2006 |
| 7128639 | Process and apparatus for the artificial aging of stones A process for the artificial aging of stones, particularly concrete blocks, clinker blocks and natural stones, provides for the stones to be applied to a support. Impact units that move essentially freely are applied to the surface of the stones that is to be proces... | 10/31/2006 |
| 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 |
| 7060072 | Medical tool The invention relates to a medical instrument (1) for sectioning, removing, and particularly modeling bones, cartilage, and the like, in particular for a nasal bridge osteotomy, said instrument including a chisel (2) with a shaft (2a) and... | 06/13/2006 |
| 7040416 | T-post hole-forming device and use for installing a T-post The invention provides a T-post hole-forming device, comprising (a) a shaft; (b) a head for receiving a driving force at the top of said shaft; (c) a flat plate affixed to one side of said shaft, the shaft terminating in a pointed end for piercing the ground. Also p... | 05/09/2006 |
| 7017570 | Apparatus and method for splitting substrates The invention provides an apparatus for splitting a substrate apart, the substrate comprising two adjoining wafers defining between them a cleavage plane, the apparatus being characterized in that it comprises: means for feeding sp... | 03/28/2006 |
| 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 |
| 6981496 | Point chisel A point chisel for use with a power tool includes an elongate stem (1) having, at its power tool side a shank (2) for securing the chisel in the power tool and, at its workpiece side, a useful region (3) having its outer diameter (H) tapering to... | 01/03/2006 |
| 6964272 | Block splitting assembly and method The invention relates to equipment and related methods for producing concrete blocks. The equipment and methods described herein utilize splitting assemblies having larger projections and/or smaller projections or peaks disposed on at least one side of a splitting l... | 11/15/2005 |
| 6948489 | Stone cutter A rock cutter for splitting stones is disclosed which shows a support surface for holding the rock and a first blade and a second blade which may be positioned to hold the rock between the first and second blades and on the support surface along with a means for mov... | 09/27/2005 |
| 6928682 | Ice tool The present invention has a shaft with a chisel and a ladle at opposed ends. Two stops are welded to the shaft, and a slide assembly is located between the stops. A first handle is between the chisel and the first stop, and a second handle is between the ladle and t... | 08/16/2005 |
| 6918715 | 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... | 07/19/2005 |
| 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 |
| 6739327 | Cutting tool with hardened tip having a tapered base A cutting tool has a centrally located tungsten carbide insert brazed into a seat at the forward end of the tool. The seat has a circular mouth and rearward of the mouth is a frustoconical inner wall. At the bottom of the seat is a transverse surface. A tungsten car... | 05/25/2004 |
| 6739957 | Apparatus for reciprocally powering one or more working tools A surface abrader apparatus includes a casing, a motor mounted on the casing, one or more working tools, and an operating mechanism mounted to the casing and supporting the working tools outside of the casing. The operating mechanism is drivingly coupled to the moto... | 05/25/2004 |
| 6431655 | Breaker device for removing the tops of columns The breaker device for removing the tops of columns comprises a support structure composed of a plurality identical chain elements reciprocally linked by link couplings to form a closed chain which can surround a column which is to be topped. Each chain e... | 08/13/2002 |
| 6405723 | Suction tool A tool for effecting drilling and/or chiseling and including a tubular shaft (2,22) having an axially extending through-channel (8,28) and provided, at one of its axial ends, with a drilling or chiseling head (5), and a connection member (3,23) connected ... | 06/18/2002 |
| 6371103 | System of modular elements for machining marble, stone and the like The system of modular elements comprises a plurality of disc elements (11, 12 . . . ) with diamond outer rings (11a, 12a . . . ) for assembling on a single drive spindle with a spacing approximately equal to their thickness; mechanical fragmenting means (... | 04/16/2002 |
| 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 |
| 5992405 | Tool mounting for a cutting tool A tool mounting block having a forward surface and a rearward surface and a cylindrical transverse aperture extending therethrough opening onto both the forward and rearward surfaces. The tool has a tapered forward cutting end, and axially aligned behind ... | 11/30/1999 |
| 5947104 | Manually-operated hydraulic linear actuators A linear actuator, which may be used as a rock trimmer, comprises a support member extending upwardly from a work surface, and a first cleaving member coupled to the support member so as to be disposed above the rock sample opposite the work surface, the ... | 09/07/1999 |
| 5941292 | Tool for rock breaking and log splitting A tool 10 for rock breaking, log splitting and similar operations includes a plate 12 having a plurality of identical apertures 14 formed therethrough. A frame 16 comprised of a skirt 18 formed from lengths of angle iron and a plurality of legs also forme... | 08/24/1999 |
| 5722386 | Method and apparatus for forming ornamental edges on cement siding A method and apparatus for producing a non-linear, ornamental edge along a cement siding workpiece. In accordance with one embodiment of the invention, a first cutting blade is configured to have a non-linear shape corresponding to a shape of an ornamenta... | 03/03/1998 |
| 5722471 | Tool for rock breaking and log splitting A tool 10 for rock breaking, log splitting and similar operations includes a plate 12 having a plurality of identical apertures 14 formed therethrough. A frame 16 comprised of a skirt 18 formed from lengths of angle iron and a plurality of legs also forme... | 03/03/1998 |
| 5662386 | Plunger-actuated surface-treating devices Plunger-actuated surface-treating devices adapted for dislodging ice, linoleum, floor-tiles, carpets, and other topical-surfaces from underlying substrates. Several components of the disclosed plunger-actuated surface-treating devices respectively extend ... | 09/02/1997 |
| 5662094 | Guillotine cutting apparatus for bricks, building blocks and the like A guillotine cutting apparatus for solid bodies of hard brittle materials such as building bricks, blocks and stone, has a base member mounting a movable cutter for engagement with the body and cutting force applying means which imparts an impact cutting ... | 09/02/1997 |
| 5638805 | Manually-operated hydraulic rock trimmer A rock trimmer for receiving, on a work surface, a rock sample to be cleaved. The rock trimmer comprising a support member extending upwardly from the work surface, and a first cleaving member coupled to the support member so as to be disposed above the r... | 06/17/1997 |
| 5363835 | Nose block assembly In a rock-breaking apparatus of the type employing a striker pin and hammer providing shock absorbing means housed within the nose block to protect the nose block and its carrier from primary and/or recoil shock loads during use.... | 11/15/1994 |
| 5145237 | Cutter bit with optimized shank An axially extending cutter bit has a shank extending between a trailing end (2, 7) arranged to be inserted into a tool chuck and a leading or working end (5, 8) with the shank between the trailing end and leading end being divided into a first section pr... | 09/08/1992 |
| 5134989 | Hydraulic breaker A hydraulic breaker includes a piston which is designed in the five-staged configuration including a first stage, a second stage, a third stage, a fourth stage and a fifth stage. The second stage is dimensioned to have a largest diameter, the fourth stage... | 08/04/1992 |
| 5092310 | Mining pick Disclosed is a mining pick of the type having a shank and head with the head having an integrally bonded cutting tip, the cutting tip having a metallic substrate which is bonded to the head and also bonded to a superabrasive material cutting surface, wher... | 03/03/1992 |
| 5087100 | Method of fracturing rock or similar material and apparatus therefore A method of fracturing a hard compact material such as rock or concrete, having a hole pre-drilled in the material area to be fractured which includes inserting a outer slug of solid material into the hole to a bottom thereof, and impacting the outer slug... | 02/11/1992 |
| 5066070 | Apparatus for reflex-percussive cutting of concrete etc. The machine includes a reciprocating piston/hammer (10) assembly, which is constrained against rotation in the cylinder (8). This allows the cutting bit to apply concentrated action along a line, and thus is useful for cutting grooves. The cutting bars (4... | 11/19/1991 |
