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 |
| 7766726 | In-situ compressor blade tip cropping assembly and method An assembly is provided for cropping the trailing edge tip of a stator zero blade in-situ. The cropping assembly includes a base plate that is secured to the end of the compressor stator blade to be cropped; a removable, rotational guide block; and a drill that is m... | 08/03/2010 |
| 7361077 | Tube and duct edge cleaner An apparatus for cleaning a portion of a tubular member comprises a platform; a motor operatively connected to a shaft; a first sliding base driven by the shaft to revolve generally parallel to the platform; a first pinch thumb, including an outer surface, mounted o... | 04/22/2008 |
| 7351130 | Sanding machine having adjustable brush A sanding or polishing or grinding machine includes one or more sanding wheels supported on a machine base and movable up and down relative to the machine base for grinding the work pieces of different heights or thicknesses. A driving device may be used for driving... | 04/01/2008 |
| 7235002 | Method and system for making glass sheets including grinding lateral edge(s) thereof A method and system for making glass sheets is provided. At least one grinding wheel is provided for grinding a lateral edge of a glass sheet. An airbag and corresponding air pressure regulator are provided for biasing the grinding wheel against the lateral edge of ... | 06/26/2007 |
| 7198557 | Sanding machine incorporating multiple sanding motions A sanding machine includes a conveyer and a sanding assembly for sanding a workpiece by moving the sanding assembly in multiple linear and/or nonlinear motions relative to the conveyed workpiece. ... | 04/03/2007 |
| 7150676 | Dual motion polishing tool A polishing tool that includes: an arbor with a shank having a first cylindrical axis; an offset cylinder extending from the shank, the offset cylinder having a second cylindrical axis, the first cylindrical axis being offset from the second cylindrical axis and par... | 12/19/2006 |
| 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 |
| 7104873 | Anti-vibration arrangement The present invention relates to an anti-vibration arrangement (10) for a power sander (1) which comprises a housing (2), a motor (4) arranged in the housing (2), a rotary drive shaft (11), a first outer or ring-shaped pad s... | 09/12/2006 |
| 7097543 | Burr removal apparatus Apparatus for removing a burr from an aperture in a workpiece, using a rotating deburring tool having a flexible or partly flexible shaft, an abrasive mechanism that rotates on the shaft and a collar that protects the workpiece from abrasion when the abrasive mechan... | 08/29/2006 |
| 7063607 | Bowling ball resurfacing apparatus A bowling ball resurfacing apparatus comprises a housing, first and second vertical support rollers mounted to the housing for rotation about parallel vertical axes, each of the vertical support rollers adapted to make contact with the surface of the bowling ball at... | 06/20/2006 |
| 7028595 | Precision double-sided aspheric element A precision optical element is described, such as is used in thermal imaging systems in the infra-red, manufactured by means of single point machining, with both of its surfaces having an aspheric form, with or without the addition of a diffractive optics pattern. T... | 04/18/2006 |
| 7008298 | Machine for machining long workpieces provided with cutting teeth, particularly for grinding endless saw blades In a machine (10) for machining long workpieces (32) provided with cutting teeth (60), particularly for grinding endless saw blades, having a machine base (40) and a machining device (12) which has a rotatably drivable tool (16 | 03/07/2006 |
| 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 |
| 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 |
| 6902465 | Grinding machine A grinding machine uses a conical grinding wheel (10) to create a non-circularly symmetric surface (defining, for example, a re-entrant cam) on a workpiece. The machine is operable to rotate such a workpiece about a first axis (5) and the machine has d... | 06/07/2005 |
| 6893323 | Method of and apparatus for removing material Apparatus for removing material from a workpiece is described, in which the apparatus comprises means for advancing an abrasive tool towards the workpiece to bring an abrasive surface of the tool into contact with the surface of the workpiece, means for moving the a... | 05/17/2005 |
| 6615613 | Method of grinding a substrate and method of manufacturing a glass substrate and a magnetic recording medium by the use of the glass substrate In a method of grinding side end surfaces of substrates, spacers are interposed between the substrates to form a stack of the substrates and the spacers. The spacers are slightly smaller in size than the substrates. The stack of the substrates and the spa... | 09/09/2003 |
| 6579159 | Chemical planar head dampening system An improved polishing apparatus having a dampening system to prevent fluctuations between the planar head polishing device and the circuit panel. The dampening system includes a load actuation arm having a hydraulic-pneumatic cylinder which is controlled ... | 06/17/2003 |
| 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 |
| 6254463 | Chemical planar head dampening system An improved polishing apparatus having a dampening system to prevent fluctuations between the planar head polishing device and the circuit panel. The dampening system includes a load actuation arm having a hydraulic-pneumatic cylinder which is controlled ... | 07/03/2001 |
| 6234885 | Roll grinding machine In a roll grinding machine (2) for profile grinding of rolls with a constructionally simple device for a very precise adjustment of a grinding wheels (4) supported on a grinding spindle (7) tangentially with respect to a roll profile, the grinding spindle... | 05/22/2001 |
| 6077146 | Method of correcting a taper in a grinding machine, and apparatus for the same A taper correcting apparatus for a grinding machine comprises: workpiece supporting means for supporting a workpiece in parallel with a grinding wheel spindle; a cutting and feeding device which moves back and forth a cylindrical grinding wheel with respe... | 06/20/2000 |
| 5916014 | Oscillating belt/spindle sander An oscillating belt sander or spindle sander is disclosed. The sander includes a motor shaft that extends upwardly through a worktable that supports a workpiece. The motor shaft supports a belt sander or spindle sander sanding surface. A combined motor an... | 06/29/1999 |
| 5855504 | Hand-operated orbital sander In a hand-held orbital sander with a housing (12) and with a sanding tool (10) received in a tool holder (22), which is seated by means of a pivot bearing (21) on a rotating eccentric journal (20) protruding from the housing (12), an oscillating device (2... | 01/05/1999 |
| 5707272 | Polishing apparatus for a CRT glass panel and a method of polishing the glass panel When a face portion of a CRT glass panel is polished by fixing the glass panel on a rotating table and pushing a rotating cylindrical drum type polishing tool, which is supported by a supporting frame, to the face portion, the supporting frame is swung ar... | 01/13/1998 |
| 5697831 | Machine tool with plural tool spindles A circular grinding machine wherein a reciprocable carriage supports a first rotary tool spindle for a relatively large grinding wheel and the housing including the bearing for the first spindle mounts a carrier which is pivotable about the axis of the fi... | 12/16/1997 |
| 5658187 | Apparatus for in-line surface finishing cylindrical stock such as stainless steel tubing, and method A surface finishing apparatus for in-line outer surface finishing of elongate cylindrical stock. The stock, such as tubing, is fed through the finishing apparatus from an infeed to an outfeed position and rotated about its longitudinal axis. The outer sur... | 08/19/1997 |
| 5549507 | Combined motor and mechanical drive for use in oscillating spindle sander A combined motor and mechanical drive that is used with an oscillating spindle sander is disclosed. The oscillating spindle sander has a worktable for supporting a workpiece. A spindle extends upwardly through the worktable and has a sanding surface. An e... | 08/27/1996 |
| 5210979 | Cutting method with a rotary sheet hone The cutting of such inorganic substances as ceramics and other materials that are hard to cut with a rotary sheet hone made of hone particles and a binder is accomplished by repeatedly varying the force of engagement of the rotary sheet hone with the work... | 05/18/1993 |
| 5016497 | Method and apparatus for grinding teeth in a steel strip to form saws Saws are made by grinding teeth in an edge of a continuously advanced steel strip. The grinding is performed by abrasive members mounted on a frame which is oscillated in an endless path within a plane parallel to a plane of the strip so that the abrasive... | 05/21/1991 |
| 4965964 | Portable apparatus for processing marble tile A portable apparatus for drilling and shaping tile at a worksite has a base assembly with a support arm extending upright therefrom. A horizontal housing, rotatably connected at one end to the support arm, houses a slide assembly which supports a router; ... | 10/30/1990 |
| 4907371 | Automatic polishing machine An automatic polishing machine which can polish a curved skin of a large area fully automatically and efficiently along a three-dimensional plane of the skin. The machine comprises a fixed horizontal beam, a movable table movable in a horizontal direction... | 03/13/1990 |
| 4862644 | Optical lapping machine A machine for finishing the surface of a lens mounted on one side of a lens block having receiving depressions in its other side, the machine having a cylindrical tube mounted for rotary and reciprocal motion on a fixed shaft, an optical tool holder affix... | 09/05/1989 |
| 4856233 | Method for sampling a workpiece A method for sampling a workpiece and for retaining the sample in the workpiece so that it may be retrieved by using a semi-spherical cutting blade rotated about its central axis and articulated about an axis perpendicular thereto such that the cutting ac... | 08/15/1989 |
| 4845896 | Surface sampling device A device, utilizing a unique hemispherical cutter to remove a sample of material and to retain the sample of material for retrieval. The cutter is mounted on a chassis which can travel along the interior or exterior of the device to be sampled. The carria... | 07/11/1989 |
| 4798024 | Method and apparatus for deburring the inner edge of part of a workpiece A method and apparatus for deburring the inner edge of the bore of a workpiece. A tool is introduced into the bore, is rotated at high speed, and has a wobbling movement imparted thereto. Alternatively, the tool can be rotated while a wobbling movement is... | 01/17/1989 |
| 4634322 | Assembly for use in removing material from the ends of bars or the like workpieces An assembly capable of use in removing material from both ends of an elongated workpiece, such as a bar incorporates two similar pieces of apparatus of a known kind. Each apparatus has a cutter mounted at one end of a flexible drive and rotatable by a mot... | 01/06/1987 |
| 4617764 | NC vertical spindle jig grinder An NC vertical spindle jig grinder comprises a bed having a column with vertical ways and a compound table carrying the workpiece and a wheel dresser. The compound table is movable along the X and Y axes. A slide having a lay-shaft is traversable upon the... | 10/21/1986 |
| 4555229 | Automatic machine for the internal fettling of sanitary appliances An automatic machine for the internal fettling of sanitary appliances in general, which comprises a tappet device elastically loaded towards a cam having a profile conforming to the mouth of the bowls of the articles to be fettled, said device controlling... | 11/26/1985 |
| 4553920 | Automatic machine for the fettling of the syphon of sanitary appliances An automatic machine for the fettling of the syphon of sanitary appliances, comprising a vertical flat structure of overall elastically deformable configuration, which tapers downwards in such a manner as to be able to be inserted into the syphons of the ... | 11/19/1985 |
