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 |
| 7416473 | Numeric-control work-centre for machining plates of glass, stone, marble or the like, with two or more machining heads A numeric-control work-centre for machining plates of glass, marble and natural or synthetic stones comprises: a bench, defining a work surface, designed to receive the plates to be machined; two fixed side members, set at the two sides of the work surface; an overh... | 08/26/2008 |
| 7220161 | Automatic sharpening system for ice-skates A method is for using a skate-grinding device. The method provides an automatic sharpening system (10) that has grip members (14, 16) and a grinding wheel (28). A blade (18) of a skate (20) is inserted into a groove (19). Th... | 05/22/2007 |
| 7216957 | Micro-electromechanical ink ejection mechanism that incorporates lever actuation A micro-electromechanical ink ejection mechanism for a printer includes a substrate that defines an ink inlet. A drive circuitry layer is positioned on the substrate. An elongate thermal bend actuator is connected at a fixed end to the drive circuitry layer and is c... | 05/15/2007 |
| 7172105 | Apparatus for positioning pipe and tubing A counterweight assembly is especially adapted for mounting to a spinner tool allowing a workpiece to be balanced when rotated during welding or other operations. The counterweight assembly has an adjustable counterweight to provide a necessary amount of counterbala... | 02/06/2007 |
| 7137686 | Inkjet printhead having inkjet nozzle arrangements incorporating lever mechanisms An inkjet printhead includes a substrate that defines a plurality of ink supply channels. Drive circuitry is positioned on the substrate. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement has a static structure mounted on the... | 11/21/2006 |
| 7125323 | Clutch device for a rollers' swinging mechanism of a belt sander A clutch device for a rollers' swinging mechanism of a belt sander, which includes a roller set, a swinging gear set, is composed of a control bar, a linking member and a clutch member. The roller set is driven by the swinging gear set to carry out an axial movement... | 10/24/2006 |
| 7101023 | Inkjet printhead having multiple-sectioned nozzle actuators An inkjet printhead having a plurality of ink ejection nozzles arranged on a substrate is provided. Each ink ejection nozzle comprises an ink chamber, an ink ejection port arranged on the ink chamber and a multiple-sectioned actuator arranged to be displaced relativ... | 09/05/2006 |
| 7090569 | Manual clutch device for a roller sander for controlling reciprocating movement of a roller A clutch device for a roller sand for controlling reciprocating movement of a roller includes a belt wheel, a connecting shaft and a adjusting button. The roller sander consists of a base, a motor set, a roller set and a linking device. The belt wheel is pivotally c... | 08/15/2006 |
| 6942553 | Portable automated sharpening apparatus for an operational reel blade mechanism A portable automated sharpening apparatus is structured to sharpen one or more of a plurality of blades of an operational reel blade mechanism, the apparatus including a sharpening assembly with a sharpening element movably interconnected to a sharpening motor. The ... | 09/13/2005 |
| 6910945 | Honing method and honing apparatus In a coarse honing step in a section (101), a honing head (15) provided with coarse honing hones (17) is inserted into a cylinder bore (13) of a cylinder block (11), the honing head 15 is rotated while axially moving it, and... | 06/28/2005 |
| 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 |
| 6910958 | Feeding mechanism of a rippled edge beveler The present invention relates to a rippled edge beveler comprising a wheelhead feeding mechanism having an upper planker and a grinding wheel, wherein the upper planker 2 is connected to the middle planker which is connected to the lower planker fixed on the ... | 06/28/2005 |
| 6893324 | Angle head grinding apparatus A computer controlled grinding machine grinds a cylindrical region and an annular shoulder of a rotatable workpiece. Relative movement is effected between the workpiece and a grinding wheel along a line of action which subtends an angle of approach of less than 90 d... | 05/17/2005 |
| 6722961 | Polishing machine for wheel rims It comprises a plurality of carrying units mounted on a turntable, with each of the carrying units securing a wheel rim or the like to be polished, and a plurality of polishing units, each one of which includes a polishing element that carries out a polishing operat... | 04/20/2004 |
| 6645048 | Equipment for grinding/polishing a curved or flat wall element An apparatus for grinding and/or polishing a surface of a wall element includes a first elongate guide device oriented substantially parallel to the surface of the wall element. A second elongate guide device is movably coupled to the first elongate guide... | 11/11/2003 |
| 6575813 | Guiding apparatus for a slidable member driven by a linear motor A grinding head guiding apparatus is disclosed. The grinding head is driven by the linear motor which is constituted of a coil attached on an underside surface of the grinding head and a magnet attached on an upside surface. Horizontal guiding members are... | 06/10/2003 |
| 6506106 | Automated razor sharpening device Apparatus for sharpening a razor blade with a motor actuated sharpening member mounted in a housing with a slot for receiving the razor head and a cradle assembly for engaging the distal end of the razor handle to hold the razor head in the slot. A carria... | 01/14/2003 |
| 6409578 | Adjustable grinding method and apparatus A method of grinding the bore of a rotary spindle, the bore having a taper, to true the bore while the spindle rotates about a spindle axis, the steps that include providing a support attachable to a base associated with the spindle; providing an angled s... | 06/25/2002 |
| 6276988 | Fully automatic scrapper grinder This specification discloses an improved fully automatic scraper grinder, which is modified from a conventional semi-automatic model. It comprises an emery wheel base, a set of upper and lower fine tuning devices driven by a motor provided thereon, and a ... | 08/21/2001 |
| 6110010 | Drive and support for machine tools An improved drive and support for a machine tool by which a part thereof can be supported and driven along a linear path for machining. The drive and support includes a linear slideway having a magnetic track along which a housing will move when a moving ... | 08/29/2000 |
| 5924911 | Arrangement for grinding of preferably slabs and method The invention relates to a method for grinding of preferably billets, blooms or slabs which are moved in a certain direction on a support. The method means that the grinding is performed in a track which is perpendicular to the travel direction of the bil... | 07/20/1999 |
| 5895311 | Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft supporting the abrading tip, the abrading head being positioned ... | 04/20/1999 |
| 5733180 | Sanding machine A Sanding machine for sanding of workpieces including relief formations passed in a direction of conveyance through the sanding machine, the sanding machine comprising sanding heads extending transverse to the direction of conveyance of workpieces passed ... | 03/31/1998 |
| 5649851 | Device for rounding the ends of the fibres of brushes A device for rounding the ends of the fibres of brushes (1), in particular fibres which are made of synthetic material, contains a first support (5) which can be moved in a direction in relation to a brush (1); a second support (4) which is mounted, rotat... | 07/22/1997 |
| 5531636 | Oscillating drum sander A sander for mechanically abrading a surface of a workpiece. The inventive device includes a main frame having a moving conveyer extending therethrough. A first sanding drum assembly is positioned over the conveyer and rotates for initially abrading a sur... | 07/02/1996 |
| 5486133 | Timing belt grinding apparatus and method A toothed timing belt is produced from a belt blank utilizing an apparatus having a belt blank fixturing device for supporting the belt blank for selective indexable rotation about a first axis and a toothed grinding wheel rotatable about a second transve... | 01/23/1996 |
| 5472367 | Machine tool apparatus and linear motion track therefor A machine tool apparatus, and a linear motion track therefore, are disclosed where the linear motion track is comprised of a tube having a circular cross-section with at least two bearings longitudinally disposed on opposite exterior sides of the tube suc... | 12/05/1995 |
| 5369915 | Grinding apparatus for grinding end faces of armature An apparatus is presented to automatically handle operations related to grinding simultaneously the two end faces of a core of an armature. The apparatus consists of four main sections: a charging section to charge a core at a time to a transport section;... | 12/06/1994 |
| 5315789 | Numerically controlled machine tool and method of controlling grinding operation thereof A numerically controlled machine tool such as a roll grinder grinds a workpiece into a roll shape by rotating the workpiece about its own axis at a prescribed speed, and moving a grinding tool in radial and axial directions of the workpiece. The machine t... | 05/31/1994 |
| 5099618 | Method for repairing damaged digital recording disks A digital recording disk, such as an audio or a video disk, has a central bearing area, a data medium layer having at least one data track thereon, and a protective layer covering a face of reading of said disk, said protective layer is provided with dama... | 03/31/1992 |
| 4989372 | Precision radial arm saw for composite materials A precision radial arm saw includes a diamond saw blade for wet cutting a material. The radial arm saw is slidably coupled two shafts which extend in a horizontal plane above the cutting surface. The shafts are attached to a frame which is rotatably suppo... | 02/05/1991 |
| 4922662 | Reciprocating jig adapter for grinding mills A jig adapter for a grinding mill having an exposed grinding wheel or burr operated by a suitable pneumatic motor, with the motor and wheel mounted on a reciprocating plate suspended from a fixed adapter plate removably attached to the quill of the grindi... | 05/08/1990 |
| 4914870 | Process for automatically smoothing and polishing slabs or marble, granite, stones and the like The method according to the present invention, permits to smooth and polish automatically and semicontinuously slabs of marble, granite and stones of every type while improving substantially the uniformity of smoothing and polishing of the surfaces being ... | 04/10/1990 |
| 4876760 | Apparatus for buffing and otherwise treating vehicle bodies A machine and method for automatically buffing and otherwise treating vehicle bodies. A gantry type frame includes two side columns each carrying an extensible and retractable buffing head that can be driven up and down. An overhead bridge extends between... | 10/31/1989 |
| 4816731 | Honing machine A honing machine in which a micro-processor controls reciprocation with respect to a work-piece of a spindle which carries honing stones, the micro-processor being associated with a memory unit which holds an acceleration profile in terms of position/time... | 03/28/1989 |
| 4694613 | Relief grinding of lawn mower cylindrical blades In a grinding machine for relief grinding the blades of a lawn mower blade cylinder having a rotatable drive shaft (14) on which a grinding wheel (20) is mounted for rotation therewith and for axial movement therealong, a grinding wheel guide assembly (30... | 09/22/1987 |
| 4688354 | Table feed apparatus A grinder wheel table feed apparatus which converts a rotation of the table driving motor into a reciprocation movement of the grinder wheel table through a ball-screw mechanism and exerts a traverse movement to the table between a stand-by position and a... | 08/25/1987 |
| 4635402 | Knife abrasive apparatus for rotary drum shaped cutter A knife abrasive apparatus for a rotary drum shaped cutter can grind the knife edge without causing it to be serrated. It has a rotary drum shaped cutter including a rotary drum and knives spacedly disposed on the outer periphery of the drum at a predeter... | 01/13/1987 |
| 4617760 | Table reciprocating apparatus A table-reciprocating apparatus comprises a table disposed on a base for reciprocating movement in relation to the base, a shaft axially attached to the table, and a ring-like sliding member attached to the other end of the shaft for imparting reciprocati... | 10/21/1986 |
| 4606150 | Grinding machine A grinding machine for machining the inner surfaces of workpieces. The machine has a bench to which are secured a workpiece headstock and a carriage which supports a grinder unit. The carriage can be moved on the bench via guides which are disposed on opp... | 08/19/1986 |
