Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7350313 | Device for cutting and marking a metal cable Device for cutting and marking a metal cable (16), comprising means (12, 18) for cutting the cable (16) and marking means (20) for marking the cable (16) with a mark at a predetermined distance (d) from the cutting plane (C), cutti... | 04/01/2008 |
| 7293338 | Tap process for hard workpieces A process and apparatus for producing screw threads in hard material workpieces with a series of taps. The present invention employs a threaded bore formed in a bracket assembly to align and position multiple taps on a rotary machine. The taps are used in sequence t... | 11/13/2007 |
| 7207121 | Digital measurement system A digital measurement system is provided for an apparatus including first and second parts that are positionally adjustable relative to one another, the first part having a base surface and the second part being selectively adjustable toward and away from the base s... | 04/24/2007 |
| 7186169 | Angle positioning tool and hand-scaler grinding device using same The object of the present invention is to provide an angle setting tool for setting the blade section of a hand scaler at a predetermined angle during sharpening of the scaler, and a hand scaler sharpening device which has a relatively simple structure, is easy to o... | 03/06/2007 |
| 6993852 | Gauge and process for adjusting bearings A setting gauge (G) determines the thickness of a spacer (22) which gives the correct setting for a pair of tapered roller bearings (B1, B2) that are mounted in opposition to accommodate relative rotation between machine components (S, H). The g... | 02/07/2006 |
| 6973738 | Measuring method and device, machine tool having such device, and work processing method A method of measuring the position of the cutting edge of a tool T mounted to a spindle 14 of an NC machine tool includes steps of measuring the dimension of the center of an end surface of the spindle 14 relative a reference position in a machine coor... | 12/13/2005 |
| 6971949 | Sharpening guide for dental tools A sharpening guide for a dental tool is provided, with the dental tool having a handle, a working portion, and a shank extending between the handle and the working portion. The sharpening guide includes a guide body and at least one opening formed in the guide body ... | 12/06/2005 |
| 6629480 | Device for assembly of tools in tool carriers by thermal expansion and preadjustment and measurement of the mounted assembly The present invention has for its object a device for assembling tools in a tool carrier by thermal expansion and preadjustment and measurement of the mounted assembly. The device is characterized in that it is essentially constituted by a support frame (... | 10/07/2003 |
| 6625894 | Position-adjusting device A device and method for adjusting the position of machine tools relative to tool clamps. The device includes a plurality of tool clamps, a surface plate defining a flat surface, an adjustment member and a gauging system. Each tool clamp is adapted to supp... | 09/30/2003 |
| 6381016 | Lead width inspection system and methods A leadframe inspection system, methods, and templates are provided. The leadframe inspection templates include upper and lower specification limits marks that form lead width guides. A user places a leadframe on the template, lines up the leads on the lea... | 04/30/2002 |
| 6061917 | Tool presetting device A tool presetting device comprises a carrier device for rotatably holding a tool. The tool is received in a bearing bushing which defines a bearing axis and provides a rotationally symmetrical bearing surface wherein said tool is enabled to be rotated in ... | 05/16/2000 |
| 5960686 | Alignment pin for tube squaring machine An alignment pin has a first cylindrical portion having a first diameter equal to the outer diameter of a work piece, and axially aligned therewith is a second cylindrical portion having a second diameter equal to the inner diameter of a work piece. The p... | 10/05/1999 |
| 5890850 | Bowl hawg tool for enlarging valve bowls on cylinder heads A bowl cutter for enlarging cylinder head valve bowls and the like that includes at least one cutting blade with first and second cutting edges. The bowl cutter further includes a body with at least one cutter mount including a clamp that securely holds t... | 04/06/1999 |
| 5675903 | Alignment mechanism for jointers The alignment mechanism includes a main body, a clamp which is connected to the main body for clamping the main body to the frame of a jointer and for creating a tension on the rotor of the jointer against rotation of the rotor about its drive axis. The c... | 10/14/1997 |
| 5655354 | Method and apparatus for automated verification and loading of precision drill bits into a drilling machine package An apparatus and method for automated loading of a drilling machine package having a plurality of drill bit receiving openings arranged in a known configuration with verified precision drill bits from a drill bit container is disclosed. The apparatus incl... | 08/12/1997 |
| 5630282 | Gage, system, and method for measuring can blank slitter knives spacing A positioning device for conveniently and accurately positioning the deformation edges of two deformation tools that includes a support structure, a securing device to secure the gage to one tool, a moveable anvil that is urged against the other tool, and... | 05/20/1997 |
| 5470807 | Chromium carbide based ceramics composite block gauge A composite ceramic block gauge and its preparing method is disclosed. The ceramic block gauge comprises a tungsten carbide (WC) reinforced phase and a chromium carbide (Cr3 C2) matrix. The finished block gauge possesses excellent pr... | 11/28/1995 |
| 5459930 | Alignment gauge for bicycle wheel truing stand An apparatus for aligning bicycle wheel truing stands is disclosed having a gauge bar (10), hub pin (20), and gauge pin (30), which combine together to represent those certain parts, or features, or physical manifestations, or characteristics of a perfect... | 10/24/1995 |
| 5382120 | Drill bit depth minder The present invention relates to a device that is hand held and independent of a drill, either hand held or powered by electricity. This device consists of a tubular housing with a turn screw plunger shaft and a scale for measurement in inches on one side... | 01/17/1995 |
| 5365667 | Tool inspection apparatus having movable microscope for viewing different portions of a tool Tool inspection apparatus includes a bed configured for supporting a tool to be inspected, and a magnifying device associated with the bed for focusing on and magnifying at least a portion of a tool supported by the bed. There is also a reflecting member ... | 11/22/1994 |
| 5323543 | Apparatus and method for calibrating a surgical knife An apparatus and method for zeroing, calibrating and setting a surgical knife. The surgical knife includes a blade that has a tip which can move relative to a footplate that extends from the body of the knife. The apparatus includes a calibration housing ... | 06/28/1994 |
| 5155556 | Hand-held drill bit tester A compact tester for examining the sharpened end of a twist drill bit for geometrical symmetry and angular relations. The tester includes an optical system for examining the sharpened end; a holder adapted to hold bits of various diameters so that their c... | 10/13/1992 |
| 5134783 | Thread timing for a rotary shouldered connection A method of thread timing for a rotary shouldered connection is presented. A ring gage which has a first and second scribe line thereon is used to establish a male timed rotary connection of a first tool. The angular distance between the first and second ... | 08/04/1992 |
| 5105545 | Apparatus for measuring a width dimension of a helical surface An apparatus for measuring the width dimension of a helical surface of an endmill. The apparatus includes a workholder capable of supporting an endmill in such a position as to optically magnify the surface of the endmill to be measured. The workholder fu... | 04/21/1992 |
| 5042542 | Router table gauge A gauge (40) for use with a router table assembly (10) to accommodate bit and fence settings thereon. The router table assembly has a table work surface (18) which includes a fence (32) which is adjustable longitudinally of the work surface and a bit (28)... | 08/27/1991 |
| 5020228 | Jig for aligning cutter blades to a cutter head A jig for aligning cutter blades to a cutter head comprising a pair of spaced apart parallel base bars each pivotally connected to a pair of spaced apart arcuate supports and a knife bar parallel to the base bars and supported between the base bars by the... | 06/04/1991 |
| 4879813 | Apparatus for inspecting twist drills An apparatus is disclosed for inspecting the cutting features of twist drills to determine the concentricity of the drill's chisel ridge and the symmetrical status of the outer corners of the drill's flutes. The apparatus comprises an upstanding V-shaped ... | 11/14/1989 |
| 4821462 | Dental instrument sharpening hone A hone for reconditioning dental instruments of the type having a handle terminating in a blade including a planar portion bordered by a sharp edge is disclosed that is characterized by a planar abrasive surface supported upon a base alongside of which a ... | 04/18/1989 |
| 4815218 | Gauge for calibrating surgical scalpel A surgical scalpel having an extendable blade, said blade being extended by rotating a movable portion of a barrel with respect to a fixed barrel portion, the initial extension being done at a fast rate and the final extension or depth adjustment being do... | 03/28/1989 |
| 4763707 | Self-centering router mortise base An automatic self-centering cutting guide base plate for electric routers which can be utilized as either the main base plate or as an auxiliary sole plate and is adjustable for variable work surface heights and widths.... | 08/16/1988 |
| 4750272 | Tool measuring device employing gap width detection A tool measuring apparatus for a machine tool is provided with a plunger (16) mounted to move along an axis (22) to vary the spacing between the end of the plunger and an inductive element (26) of an inductive displacement measuring device (24). Device (2... | 06/14/1988 |
| 4718175 | Device for mechanical checking for toolbreakage in machine tools The invention relates to a device for checking for tool breakage in machine tools having a sensor for sensing a clamped tool before and after a machining operation and an electronic device for evaluation of the measurement detected by the sensor. Accordin... | 01/12/1988 |
| 4694582 | Blade setting tool for wood jointer/planer machines A blade setting tool for wood jointer/planer machines includes a jig member which is attached to the horizontal worktable of the machine and which supports a pair of vertically displaceable knife stops which are positioned in the path of rotation of the k... | 09/22/1987 |
| 4662075 | Apparatus and method for setting knife blade depth Apparatus and method for setting knife blade depth. The apparatus comprises a magnification device and a removable tray in operative engagement with a digital micrometer. The method comprises the steps of positioning the edge of the knife holder flush wit... | 05/05/1987 |
| 4574488 | Gundrill diameter gage and method An electro-mechanical gaging apparatus and method for measuring the diameter of gundrill bits that have been pointed and the cylindrical surface areas relieved to leave only the margin and the wear pad on the circumference. A V-block of about 100 degrees ... | 03/11/1986 |
| 4567659 | Tool size measuring apparatus for NC machine tools Each of the tools accommodated in a tool magazine of a NC machine tool is transferred to a reference receptacle arranged near to the tool magazine and the length and outer diameter of the tool are measured thereby inputting the measured values into the ma... | 02/04/1986 |
| 4559712 | Cutter tip measuring device A portable measuring device includes a template for measuring the width of an associated cutter tip. A plurality of spaced width indicator marks of different sizes are provided on the template member. A magnifying member is provided for magnifying at leas... | 12/24/1985 |
| 4532716 | Tool presetting device with tapered air spindle mount A tool holder has on its lower end an inverted, frusto-conically shaped bearing surface which is releasably seated coaxially in a correspondingly shaped opening which is formed in the upper surface of a stationary support. Intermediate its ends the bore w... | 08/06/1985 |
| 4531328 | Tooth rest for cutter grinder A method for the precision sharpening of the cutting edges of a fluted milling tool having a cylindrical cutting head, and apparatus for positioning the milling tool during sharpening. The method involves supportively contacting the flutes with an abutmen... | 07/30/1985 |
| 4521971 | Measuring head for screw thread measuring machines A measuring head for screw thread measuring machines which is capable of measuring threads of a piece to be measured which has an outer diameter with a measuring point and which may be of varied diameters within predetermined limits comprises a base plate... | 06/11/1985 |
