Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7415978 | Assembly and a method for cutting or forming an object A method and an apparatus 10 for cutting an object 64, such as a grinding wheel. Particularly, the object 64 is placed in a horizontal manner and concomitantly rotated with the cutter 14 during the entire cutting operation. The rotation o... | 08/26/2008 |
| 7302946 | Industrial scarifier assembly A scarifier assembly including a generally rectangular shaped case with a hollow interior, a resilient generally rectangular pad located in the hollow interior of the case, and a removable work performing surface insert having work surfaces for grinding, cutting or ... | 12/04/2007 |
| 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 |
| 7220171 | Cutting cup for sphere making machines A cutting cup for a sphere making machine. The cutting cup includes a cylindrical ring having an outer wall, an inner wall, a bottom wall, and a top wall, the top wall having at least one beveled facet angled downwardly from the outer wall to the inner wall. A cutti... | 05/22/2007 |
| 7147548 | Grinding and cutting head A grinding and cutting head adapted to be mounted with a rotating disk of a grinding and cutting machine. The head includes a plate having a first surface which mounts at least one carrier. The carrier includes a vertical slot along one side which extends upwardly f... | 12/12/2006 |
| 6979418 | Method to create irregular edge decorative blocks A method to create blocks having a weathered and aged look by modifying the blocks before they are cured. Green blocks exiting a block forming machine are conveyed along a path past brush elements which scrub block mix from the upper longitudinal corners of the form... | 12/27/2005 |
| 6941939 | Facing machine for hard-fired ceramic tiles The facing machine for hard-fired ceramic tiles comprises: a structure for supporting, and setting the cutting depth of, at least one pair or rotary rollers at a grooving station, the axis of the rollers lying transverse to the infeed path of the tiles as carried on... | 09/13/2005 |
| 6736127 | Inline pitching system An inline apparatus and method for processing an unworked masonry article to produce a decorative masonry article having pitched face edges located in a non-parallel relationship to each other. The inline apparatus includes a conveyor line for carrying the masonry a... | 05/18/2004 |
| 6371838 | Polishing pad conditioning device with cutting elements A method and apparatus for polishing and planarizing workpieces such as semiconductor wafers is presented. Conditioning rings, which are used to condition polishing pads used in the planarization or polishing of semiconductor wafers, are shown which utili... | 04/16/2002 |
| 6350184 | Polishing pad conditioning device with cutting elements A method and apparatus for polishing and planarizing workpieces such as semiconductor wafers is presented. Conditioning rings, which are used to condition polishing pads used in the planarization or polishing of semiconductor wafers, are shown which utili... | 02/26/2002 |
| 6347981 | Method and apparatus for conditioning polishing pads utilizing brazed diamond technology and titanium nitride A method and apparatus for polishing and planarizing workpieces such as semiconductor wafers is presented. Conditioning rings, which are used to condition polishing pads used in the planarization or polishing of semiconductor wafers, are shown which utili... | 02/19/2002 |
| 6213931 | Stump grinding tooth The present disclosure is summarized as an improved cutting tooth for mounting on a stump cutting wheel driven by a suitable power plant. The tooth itself includes a long root to enable it to be clamped on the cutting wheel. When appropriately clamped, it... | 04/10/2001 |
| 6126523 | Optical dressing method, machining device based on this method, grindstone and polishing cloth A photo-reactive grinding wheel 1 is irradiated with light by a light irradiation device 2 which is provided opposite to the grinding wheel, to bring about a chemical reaction and change in property, and dissolved/removed by a solution 4. Simultaneously, ... | 10/03/2000 |
| 5868124 | Quick set radius dresser A radius dresser is provided including a base removably secured to a recipient surface. Also included is a cutting tip holder rotatable and radially slidable with respect to the base. The holder is selectively fixed with respect to the base. The holder ha... | 02/09/1999 |
| 5842912 | Apparatus for conditioning polishing pads utilizing brazed diamond technology A conditioning ring having cutting elements brazed-bonded to the bottom surface of the ring and suitably adopted for conditioning a workpiece polishing pad by contact with the pad. The conditioning ring further includes a flange extending about the bottom... | 12/01/1998 |
| 4754276 | System to display sawblade angle and height An apparatus for determining the angle and height of a rotary power saw blade by sensing the angle of the saw blade from the vertical and the sine of the angle with respect to a horizontal reference as the blade height is changed. A display unit converts ... | 06/28/1988 |
| 4702223 | Diamond grinder assembly and snap-fit mounting means for scarifier case A scarifier case for mounting on disc rotor grinders, wherein the case is designed to snap attach and quick disconnect selected grinder inserts in the case without requiring the case to be removed from the rotor disc to change a selected grinder insert.... | 10/27/1987 |
| 4691684 | Apparatus for modifying building blocks Apparatus for modifying building blocks which vary somewhat in size to provide spaced-apart depressions in the top and bottom surfaces thereof with the bottoms of the depression in the bottom surface being at a uniform distance from the top surface of the... | 09/08/1987 |
| 4393856 | Apparatus for milling building blocks Apparatus for milling building blocks comprise a first arrangement for milling said blocks at a first side thereof, and a second arrangement for milling said blocks at a second side thereof. Apparatus are located between the mentioned first and second arr... | 07/19/1983 |
| 4256078 | Brick finishing machine Unfinished bricks are placed lengthwise on the inlet end of a first horizontal frame section, and are pushed one after another toward a discharge station at the opposite end of the section by a plurality of spaced flight bars, which are carried by an endl... | 03/17/1981 |
| 4145086 | Method and machine for digging ditch Disclosed is a method and machine for digging a ditch for use in, for example, duct disposition therein. In the floors and walls of a concrete structure, for example, three preparatory ditches or channels are dug by means of rotary blades. By inserting a ... | 03/20/1979 |
