Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 7287445 | Apparatus for precision steeling/conditioning of knife edges An apparatus for manually steeling or conditioning the edge of a knife blade comprises a precision angle guide attached to a manual sharpening steel. The angle guide establishes a guiding surface that provides for sustained sliding or rolling contact with the face o... | 10/30/2007 |
| 7144310 | Knife sharpener apparatus An infinitely adjustable knife sharpener apparatus is provided. The apparatus comprises a clamping mechanism having a first clamp member and a second clamp member for securing a knife blade therebetween. At least one infinitely adjustable guide rod assembly is also ... | 12/05/2006 |
| 6981907 | High angle grinder One or more high angle grinding units are supported by a carriage mountable on the underside of a rail grinding vehicle. Each grinding unit is attached to the carriage in a manner enabling controllable movement of the grinding units laterally, vertically, and angula... | 01/03/2006 |
| 6918814 | Polishing apparatus This invention pertains to a polishing apparatus for polishing a semiconductor wafer. The apparatus comprises a storage section that is capable of receiving a workpiece to be polished and a polished workpiece. The polishing unit that polishes the workpiece includes ... | 07/19/2005 |
| 6913525 | CMP device and production method for semiconductor device A triangular pad of the type shown in FIG. 5(a) which has circular tip ends is used as the polishing pad. This shape corresponds to the concept of partially cutting the outer edge of the polishing pad in order to shorten the contact time of the polishi... | 07/05/2005 |
| 6910946 | Polishing machine The polishing machine processes a workpiece put on table of body by four-directional control and is provided with a pair of columns. It comprises: first carrying unit having both ends fixed to pair of columns and having carrying part mounted on upper side; a second ... | 06/28/2005 |
| 6761623 | Apparatus and method for sharpening blades at a predetermined angle A method and apparatus for the sharpening of blades, particularly the blades of a lawnmower are provided. In the present invention, a blade sharpening apparatus with a supporting base comprises a blade retention and positioning mechanism, a blade sharpening mechanis... | 07/13/2004 |
| 6602120 | Edge grinding unit for edge working machines An edge grinding unit for machines for working the edges of plates in general and of glass sheets in particular comprising at least at one rim of a plate being worked, a grinding wheel which is accommodated in a carousel element provided with a rotatable ... | 08/05/2003 |
| 6468140 | Swinging device for a sanding machine A swinging device for a sanding device, is disclosed. The swinging device has a swinging element, having mounted with a bi-axle motor, mounted to a sanding module, and the bi-axle motor synchronously drives a driving structure mounted to the swinging elem... | 10/22/2002 |
| 6413146 | Polishing apparatus This invention pertains to a polishing apparatus for polishing a semiconductor wafer. The apparatus comprises a storage section that is capable of receiving a workpiece to be polished and a polished workpiece. The polishing unit that polishes the workpiec... | 07/02/2002 |
| 6280303 | Barrel-polishing apparatus There is disclosed a barrel-polishing apparatus comprising a polishing medium bath with polishing mediums received therein, a base, an arm mounted on the base, and a workpiece attachment device mounted on a distal end portion of the arm and adapted to att... | 08/28/2001 |
| 5803796 | Microfinishing machine A surface polishing machine for polishing a workpiece, the machine including a body member adapted to be positioned adjacent the workpiece and having first and second pivot means spaced apart from each other, a pair of polishing arms, each pivotable on a ... | 09/08/1998 |
| 5525099 | Apparatus for linearly displacing a rotatable spindle An apparatus is disclosed for linearly displacing a rotatable spindle relative to an object. The apparatus includes a support that is connectable to the spindle such that translation of the spindle relative to the support in a first direction is restraine... | 06/11/1996 |
| 5516325 | System for honing camshaft cams An outer surface of a cam on a camshaft extending along a camshaft axis is honed by continuously rotating the camshaft about its axis, holding a grinding stone adjacent the cam with a surface of the stone directed radially inward at the cam surface, urgin... | 05/14/1996 |
| 5185958 | Professional cutlery sharpening machine A commercial grade cutlery sharpening machine of the hand-reciprocated type employs several novel features. Work-positioning is accomplished without the use of blade clamping structure by a pair of guide pins against which the back edge of the work is gui... | 02/16/1993 |
| 4563916 | Dynamically variable oscillating adjustment assembly A dynamically variable oscillating adjustment assembly including a frame and a first link means pivotally connected at one end to the frame and an adjustment mechanism positioned intermediate the one end of the first link means and the frame to adjustably... | 01/14/1986 |
| 4486982 | Foldable holding device The improvement in a blade honing device having jaw members adapted to grip a blade to be honed and having honed guide members is to pivotally secure the hone guide members to one of the jaw members in such manner that the hone guide members may be folded... | 12/11/1984 |
| 4471951 | Sharpener mounting construction A sharpener mounting construction for sharpening opposite sides of a knife edge including a sharpener body for clamping a knife, opposite sides on the sharpener body, bores on opposite sides of the sharpener body, a post, and a pin at the end of the post,... | 09/18/1984 |
| 4040336 | Cutting or grinding tool protecting guard A protective guard for a machine tool system including a cutting or grinding member which is movable from a first position wherein access to the cutting or grinding member is barred to a second position wherein the cutting or grinding member is exposed.... | 08/09/1977 |
| 3959929 | Device for precision grinding and polishing of workpieces A device for precision grinding and polishing the surfaces of a workpiece such as the surfaces of molds or the like includes a base means on which the workpiece is movable in one plane. A stand supported on the base plate is provided with a carrying arm o... | 06/01/1976 |