Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7220169 | Sharpening apparatus A sharpening apparatus (16) for a blade-like cutting implement. The sharpening apparatus has an elongate body (18) and a cutting edge extending widthwise across one end of the body (11) at a predetermined angle relative to the longitudinal axis ... | 05/22/2007 |
| 6709320 | Width adjustable sharpener A knife sharpener includes a handle and an operation portion in which two grinding members are respectively and pivotably received. An aperture is defined through a top of the operation portion and communicates with the grinding members. Each of the two grinding mem... | 03/23/2004 |
| 6368196 | Blade sharpener for curved and straight edge blades A blade sharpener comprises a work surface consisting of a single support line. A grinding wheel defines a plane that contains the support line. The grinding wheel is swingable in the grinding wheel plane to a selected position relative to the support lin... | 04/09/2002 |
| 6364750 | Blade sharpener for curved and straight edge blades A blade sharpener comprises a work surface consisting of a single support line. A grinding wheel defines a plane that contains the support line. The grinding wheel is swingable in the grinding wheel plane to a selected position relative to the support lin... | 04/02/2002 |
| 6217412 | Method for characterizing polish pad lots to eliminate or reduce tool requalification after changing a polishing pad The present invention is directed to semiconductor processing operations, and, more particularly, chemical mechanical polishing operations. The present invention is comprised of a method for qualifying new polishing pads used in a polishing tool without t... | 04/17/2001 |
| 5810645 | Apparatus for producing hollow ground needles An apparatus for applying a cutting edge on surgical needles having at least one abrading device and a needle holding mechanism. The abrading device includes an abrasive member such as a rotatable abrasive belt or grinding wheel. The needle holding mechan... | 09/22/1998 |
| 5700182 | Apparatus and method for automated honing of elongated straight-edged cutting blades An apparatus and method for automated honing of elongated straight-edged cutting blades such as those used in the printing and binding industry for the trimming of books or pamphlets and the like, wherein a sharpened blade which has been ground on other e... | 12/23/1997 |
| 5027559 | Sharpening unit for leather splitting machines The sharpening unit comprises two diamond grinding wheels 6,7 mounted on respective shafts 8, 9 rotatably supported by a carriage 14 movable away from and towards the cutting blade 4 of a leather splitting machine to bring the grinding wheels in contact w... | 07/02/1991 |
| 4752304 | Blade stropping apparatus In the embodiment depicted, the apparatus has a pair of contra-rotating stropping wheels to, and between which successive blades are carried for stropping. A blade-carrier magazine is supported on a rack for slidable translation thereof below a transversi... | 06/21/1988 |
| 4528777 | Knife sharpener A knife sharpening device having a grinding element adapted to be moved into the knife edge in a spiral path through a 180° traverse and reverse, simultaneously moving longitudinally throughout the length of the knife's edge. A blade stropping element ma... | 07/16/1985 |
| 4052174 | Apparatus for sharpening blade edges In one depicted embodiment of the invention the apparatus comprises a base on which a pair of honing wheels of a given, common diameter, and a pair of stropping wheels of another, common diameter are supported and rotatively driven -- the pairs being spac... | 10/04/1977 |
