Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 5722306 | Method for making a pelletizer knife and blank A method to produce a composite blank for a knife blade and, to produce knife blades from it. Each half of a pair of substrate halves has a groove filled with a powdered titanium carbide based metal matrix composite (Fe/TiC). It is placed in a metal conta... | 03/03/1998 |
| 5683292 | Abrasive plate An abrasive plate for use with a power sanding device having an abrasive surface for performing abrading applications. The plate includes at least two rows of protrusions. The protrusions in each row have an orientation substantially the same as the other... | 11/04/1997 |
| 5664915 | Tap and method of making a tap with selected size limits A nib tap configuration in which the thread turns are of progressively increasing pitch diameter over a range of size limits associated with a standard basic pitch diameter. A particular size limit can be provided by grinding off the turns of a larger lim... | 09/09/1997 |
| 5524350 | Cutting line filled with inorganic grit material A cutting line for grass trimmers, lawn mowers, and edgers of the type having a rotating head. The cutting line includes a carrier formed from a polymeric material and an inorganic grit material impregnated within the carrier. Preferably, the grit materia... | 06/11/1996 |
| 5497681 | Method for making an IC lead-frame punch A punch for removing material from lead frames has a substantially rectangular body with an array of grooves along one side and a step removed on one end from the side opposite the grooves to provide an array of punch teeth extending from the body of the ... | 03/12/1996 |
| 5495780 | Method for sharpening an IC lead-frame punch A punch for removing material from lead flames has a substantially rectangular body with an array of grooves along one side and a step removed on one end from the side opposite the grooves to provide an array of punch teeth extending from the body of the ... | 03/05/1996 |
| 5495087 | Grooving blade for textile core The invention provides textile cores having improved start-up grooves. In a preferred embodiment the start-up groove has a generally V shaped cross-section and at least one longitudinal portion of the groove, preferably the trailing portion of the groove,... | 02/27/1996 |
| 5489057 | Fabrication of needles useful in the dispensing of plastic fasteners A method of fabricating a needle useful in the dispensing of plastic fasteners and a needle fabricated by the method. In a preferred embodiment, the method involves electroplating a nickel alloy onto a master, the master being made of a meltable material ... | 02/06/1996 |
| 5477755 | Universal cutting blade blank and method for forming a cutting blade therefrom A universal cutting blade blank and cutting blades formed therefrom. The front face of the blank and blade comprises a pair of mounting surfaces with a front rake surface and connecting surface located therebetween. The cutting blade formed from the blade... | 12/26/1995 |
| 5477754 | Metal cutting inserts and method of making A metal cutting insert is made by sintering an insert body and coating the sintered insert body with a conventional coating. Subsequently, a supporting surface of the insert is ground smooth while removing the coating therefrom. The supporting surface of ... | 12/26/1995 |
| 5452627 | Making a composite profiled wire A profiled wire such as a toothed card roll wire, is made by first fitting together at least two longitudinally extending starting wires each of a predetermined cross-sectional size and each having a longitudinally extending surface region by engaging the... | 09/26/1995 |
| 5433655 | Balance adjustment method of end mill A balance adjustment method of an end mill for increasing the accuracy of the machined surface and also for lengthening the tool lifetime, in which mass unbalance between an end gash part of a primary cutting edge and an end gash part of a secondary cutti... | 07/18/1995 |
| 5396818 | Method of making a wafer broaching tool A finish broaching tool for finish cutting helical splines on the interior of an annular workpiece has a multiplicity of groups of circumferentially disposed teeth. Each group of circumferentially disposed teeth is formed on an individual wafer adapted to... | 03/14/1995 |
| 5365805 | Process for producing a cutting insert A cutting insert is produced by form-pressing and sintering of powder. The insert comprises a top chip surface, a bottom surface, and at least one edge surface extending between the top and bottom surfaces. The edge surface includes at least one relief su... | 11/22/1994 |
| 5343959 | Dozer blade, face plate, and edge plate arrangement A dozer blade has (a) a face plate with an exterior surface, (b) an edge plate having a front surface, and (c) a replaceable cutting portion having a front surface and a thickness. The method includes the steps of forming the face plate to include a curve... | 09/06/1994 |
| 5337592 | Non-stretch bending of sheet material to form cyclically variable cross-section members Machines for producing, processes for producing, and a process for designing tooling to bend longitudinally cyclically variable cross-section members from sheet material are provided. The products are for specific applications, and are produced in machine... | 08/16/1994 |
| 5332339 | Throw-away cutting tool A throw-away cutting tool is disclosed. The tool body of the cutting tool consists of a rod-like shank and a bit mounting component arranged at the front end of the shank. The shank is made of cemented carbide, and is formed with a mounting wall extending... | 07/26/1994 |
| 5286143 | Wood bit and method of making The present invention comprises a wood bit for use in wood working applications. The blade of the bit is generally spade shaped having cutting spurs on each corner of the blade, a central point projecting from the leading end of the blade, and hooked cutt... | 02/15/1994 |
| 5283938 | Method of making a connecting rod fracturing tool A fracturing tool for connecting rods has a first and second body prepared from material with a grain direction, each body having a semi-cylindrical protuberance with an axis substantially parallel with the grain of the material. The two protuberances tog... | 02/08/1994 |
| 5277528 | Micro deburring tool A deburring tool including an elongated arbor having a replaceable unitary cutting tool and an assembly holder adapted to removably receive and mount the arbor. The arbor includes a head portion disposed at one end of the arbor and a slot defining a pair ... | 01/11/1994 |
| 5242251 | Broach and process of manufacturing a broach A broach has replaceable cutting inserts. The inserts are supported to have equal hook and rake angles of about 11° to 14°. A method of producing the broach in a simplified milling setup is described.... | 09/07/1993 |
| 5230259 | Method of making a surface with a sharp edge A method of making a structure having a plurality of serrations on a surface is provided wherein each serration is positioned at a specific location along the surface, has first and second sides with specific lengths, and has effectively zero radius inter... | 07/27/1993 |
| 5214833 | Method of manufacturing an inner cutter for a dry shaver An inner cutter for a dry shaver of the present invention includes a plurality of arcuate blades, a plastic frame for supporting the blades, a joint portion for connection with a driving system of the shaver. The arcuate blades are formed from a single pi... | 06/01/1993 |
| 5195404 | Drill bit with cutting insert The invention provides a method of manufacturing a twist drill having a cutting insert. The method includes the steps of providing a cutting insert which has a prismatic shape and which comprises a layer of abrasive compact which is bonded to a cemented c... | 03/23/1993 |
| 5188680 | Method of making tooth point A method of making a tooth point and product wherein a tubular blank of alloy steel is heated, shaped at one end to provide a box section and shaped at the other end to provide a blade made up of two layers of steel forged together.... | 02/23/1993 |
| 5173133 | Method for annealing stapler anvils An anvil member for use in a surgical stapler is annealed by localized heating, preferably induction heating. A shaped shielding means is used to cradle the anvil so as to expose the staple crimping portion of the anvil. The heating is performed so as to ... | 12/22/1992 |
| 5105586 | Abrading tool and method of manufacture An abrading tool and method of manufacture wherein a non-uniform abrading surface is formed on the tool by multiple passes of dies having similar non-uniform surfaces.... | 04/21/1992 |
| 5098233 | Carbide shank boring bar with steel head A carbide shank boring bar having a coolant/lubricant bore running axially therethrough fitted with a steel head, said head being machinable to produce a pocket to receive a metal cutter insert wherein said boring bar shank and said steel head have a diam... | 03/24/1992 |
| 5093975 | Method of making new side trimmer and side trimmer blade A side trimmer made from hardened steel has an inner diameter with a keyway, an outer diameter, and two faces. A recess is machined in the faces to a radius greater than the keyway root. The recesses enable the faces to be hard faced with a ceramic tool w... | 03/10/1992 |
| 5077887 | Method for producing gripper means for stretcher leveler apparatus A method for producing a stretcher leveler gripper means for use in a stretcher leveler apparatus in which the surface for engagement with the metal to be stretched comprises a smooth polymeric material most desirably of a thermoset polyurethane.... | 01/07/1992 |
| 5067378 | Blade for cutting sheet material and related cutting method In a reciprocating blade for cutting sheet material, a lower cutting part includes a forward cutting edge defining portion and a rear body portion. The body portion has two parallel side faces. The cutting portion has first, second, third and fourth side ... | 11/26/1991 |
| 5065646 | Process for fabricating a moldboard blade A process for forming a moldboard blade for a grader by inducing beneficial residual stresses during fabrication. This increases the strength of the blade without adding additional material and weight. The blade is first bowed towards its supporting struc... | 11/19/1991 |
| 5063768 | Spring-loaded teeth for comminuter rolls A tooth for use in a comminuter roll comprises a roll of spring steel having a first end formed into a point or other abrading shape. The tooth is compressed upon insertion into a mounting hole in the roll and the inherent spring of the steel tends to for... | 11/12/1991 |
| 5058457 | Anvil The disclosure relates to a steel anvil extending along a substantially horizontal axis and along a vertical axis and comprising a base (3), a body (2) possessing a round horn (8) and a square horn (15) arranged on either side of a face (10). The disclosu... | 10/22/1991 |
| 5058562 | Rotary diamond tool for truing grinding wheel A rotary diamond tool for truing a grinding wheel, comprising one or two circular vapor-deposited base plates each having a thin diamond layer formed by a vapor deposition process such as electron assisted chemical vapor deposition or direct current plasm... | 10/22/1991 |
| 5056965 | Method of controlled inventory for bushings In the business of supplying bushings as tool guides for machine operations a minimum of two types of bushings need to be stocked. One type is a headless press fit sleeve. The other type is a slip fit sleeve with a head at one end. The headed slip fit typ... | 10/15/1991 |
| 5056227 | Razor blade technology A process for forming a razor blade includes the steps of providing a polycrystalline ceramic substrate of less than two micrometer grain size, mechanically abrading an edge of the polycrystalline ceramic substrate to form a sharpened edge thereon that ha... | 10/15/1991 |
| 5037249 | Cutting insert with chip control An improved cutting insert with chip control features and a method for manufacturing the same. An insert body having peripheral end wall regions, sides and first and second walls is adapted for mounting in a pocket in a holder. The insert body has cutting... | 08/06/1991 |
| 4991481 | Blade for cutting sheet material and related cutting method In a reciprocating blade for cutting sheet material, a lower cutting part includes a forward cutting edge defining portion and a rear body portion. The body portion has two parallel side faces. The cutting portion has first, second, third and fourth side ... | 02/12/1991 |
| 4984492 | Cutting blade and method for cutting sheet material In a reciprocating blade for cutting sheet material first and second side surfaces inclined relative to one another intersect to define an elongated cutting edge. The cutting edge is offset from a reference plane located midway between the side faces of t... | 01/15/1991 |
