Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7435040 | Apparatus and method for the reaming of a hole in a work surface An apparatus and method is provided for the highly accurate reaming of a hole in a work surface. A reaming device is positioned within a base unit and positioning bracket of the present apparatus in alignment with the hole to be reamed in the work surface. The reami... | 10/14/2008 |
| 7334313 | Numeric control bore for boring an eyeglass lens and corresponding method Numeric control bore for boring an eyeglass lens and corresponding method. The bore comprises a bedplate (1), attachment device (3) for the lens (5), rotation device (9) for the lens (5) according to a first axis (7) (first ... | 02/26/2008 |
| 7172374 | Backspot facing tool A backspot facing tool includes a shaft and a cutting element. The shaft has a first and second ends and a recess located near the first end. The shaft also includes an outer circumference and is centered on a first axis. The cutting element has an inner portion and... | 02/06/2007 |
| 7070364 | Reverse chamfer and countersink tool A reverse chamfering and countersink stop tool allows the required diameter of a countersink in a workpiece to be maintained in areas that have limited accessibility for the user assembling a fastener to the workpiece. The tool controls the dimension required for pr... | 07/04/2006 |
| 6722826 | Internal cavity cutting tool with stable support An internal cavity cutting tool assembly includes a tool body, a tool hanger, and a bearing assembly. The tool hanger body has a through-bore that is adapted to receive the bearing assembly. The tool body has first and second body portions, each having an arbor bore... | 04/20/2004 |
| 6192567 | Repair system for damaged transmission housings A process for repairing a defective opening in an automotive transmission housing includes the steps of (a) providing a drilling jig sized to fit closely within the servo bore chamber, the drilling jig having an alignment aperture concentric with the open... | 02/27/2001 |
| 6036409 | Blind hole self-collet countersink This invention is a portable pneumatic cutter tool for cutting countersinks into a workpiece 17 having pre-drilled holes 15. When pressure is applied, a piston return cylinder 57 and a feed rate cylinder 79 are also pressurized, which sets a body piston 7... | 03/14/2000 |
| 6019555 | Debur tool for simultaneously removing burrs from and chamfering a hole in a workpiece A debur tool for simultaneously removing burrs from holes in a workpiece, such as those in a header box tube sheet, also has a beveled surface adjacent a cutting edge for chamfering an edge of the hole from which a burr is removed. The cutting edge is hor... | 02/01/2000 |
| 5507606 | Back spotfacing tool Adjacent one end thereof the shank of a back spotfacing tool has therein a transverse slot, and a cutter mounting pin which extends between opposite sides of the slot parallel to the shank axis. A cutter has in one end thereof a U-shaped slot which is ins... | 04/16/1996 |
| 5213455 | Tool for removing a bearing A bearing may consist of one or more components where relative motion can take place between the bearing surface and a mating surface and where the mating surface may be a component of the bearing. Many bearings are circular and may be installed and secur... | 05/25/1993 |
| 5137397 | Cutting tool and method for using the same A cutting tool for finishing a back surface of a workpiece having a hole is proposed. A blade having an equilateral triangular shape is attached to a shaft of the cutting tool. One of cutting edges formed along the sides of the blade projects transversely... | 08/11/1992 |
| 4710070 | Device in back spot facing tools A device in back spot facing tools of the kind comprising a spindle (11), at one front end portion (12) of which, at least one wing (14) is arranged in a recess (13) and pivotally mounted parallel with and eccentrically with respect to the spindle about a... | 12/01/1987 |
| 4660262 | Forward and reverse milling cutter The milling cutter with a feeding motion in forward and reverse mills plane surfaces of large diameter in the area of through holes and consists of a tool head 17 which can be driven in rotation by a shank 17 and in which are mounted two cutting parts so ... | 04/28/1987 |
| 4621957 | Inverted cutter An inverted cutter or a backspotfacer 100 having indexible, lockable, rotatable carbide cutter inserts 120 whereby in use an operator can reposition the inserts 120, as necessary, to assure a sharp cutting edge 175.... | 11/11/1986 |
| 4475852 | Retractable rotary cutting tool A retractable rotary cutting tool is disclosed in which the tool is adapted to be connected to a chuck or a tool holder of a machine tool such as an automobile tool changer on a numerically controlled machining center or the like. The cutting tool support... | 10/09/1984 |
| 4281947 | Spot face cutter A spot facing tool is mounted on a work table with an arbor located beneath the work table and movable upwardly through an opening in the work table. A cutter holder is mounted on the surface of the work table with a cutter receptacle positioned in alignm... | 08/04/1981 |
| 4212571 | Automatic transmissions Increased resistance to excessive wear rate is provided in certain automobile automatic transmissions by providing a combination thrust-washer/radial-bushing at a certain position on the oil pump stator where the customarily manufactured transmission is p... | 07/15/1980 |
| 4023237 | Apparatus for cutting out the vent of a fowl Apparatus for cutting out the vent of a fowl having at least one cutting means, having a hollow cylindrical knife rotating about a center pin, being axially reciprocable relative to the knife and being provided with an onion-shaped knob at its lower end; ... | 05/17/1977 |
