Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
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| Number | Title | Issue Date |
| 7172494 | Crankshaft and camshaft grinder An apparatus for grinding a surface of a nonstraight elongated workpiece has a frame, drives on the frame for rotating the workpiece about a longitudinal workpiece axis, and a guide defining a pivot axis offset from the workpiece axis on the frame. A hanging arm has... | 02/06/2007 |
| 7125312 | Rotor-grinding machine comprising a rotary head with two grinding wheels The invention relates to a machine (1) for grinding the blades of a turbine rotor (2) or a compressor. The inventive machine consists of a rotary head (6) which is provided with two different grinding wheels (7, 7′) for grinding the rot... | 10/24/2006 |
| 7115019 | Grinding method and grinding machine In a grinding machine, a generally cylindrical workpiece having at least first and second grinding areas is ground by use of a grinding wheel supported by a wheel head. The first grinding area is first ground such that power consumed by the grinding machine is maint... | 10/03/2006 |
| 7077954 | Apparatus and method for recirculating machine tool coolant and removing ferrous debris therefrom An apparatus and method for recirculating machine tool coolant in which coolant and entrained debris flowing in a shallow stream trough are raised to a higher level by rotation of a bladed wheel in a housing arranged to receive the liquid flow stream. Coolant and de... | 07/18/2006 |
| 7037176 | Through-in grinding method and through-in grinding apparatus In centerless grinding there are the in-feed and the through-feed scheme, each having their respective advantages and disadvantages. When a work being machined by centerless grinding has plural portions being machined, those portions can be distinguished as p... | 05/02/2006 |
| 7008294 | Method and device for grinding a rotating roller using an elastic steady-rest support The invention relates to a device for grinding rollers, also for grinding hollow rollers. As the rollers tend to vibrate transversally as a result of the contact with the grinding disc, a cushioned body is applied to the opposite side of the roller from the grinding... | 03/07/2006 |
| 6913522 | Method and device for grinding central bearing positions on crankshafts An apparatus for grinding center bearings of crankshafts includes a clamping unit for clamping and driving a crankshaft; a grinding spindle, positionable perpendicular to the crankshaft; a plurality of grinding wheels on the grinding spindle, corresponding to the nu... | 07/05/2005 |
| 6878043 | Rough- and finish-grinding of a crankshaft in one set-up Method of grinding a concentrically clamped crankshaft, a crankshaft grinding machine for carrying out the method, and a crankshaft of high-alloy steel or cast material. The method provides for pin journals and main journals of the crankshaft to be ground in one set... | 04/12/2005 |
| 6869343 | Turning tool for grooving polishing pad, apparatus and method of producing polishing pad using the tool, and polishing pad produced by using the tool Disclosed is a turning tool for cutting circumferential grooves into a surface of a polishing pad formed of a resin material and utilized for polishing semiconductor devices. The turning tool comprising a cutting part arranged to have a tooth width within a range of... | 03/22/2005 |
| 6575812 | Setting up process for a tool or workpiece on a gear making machine Determining of the starting and end positions of the machining programme of a gear making machine with respect to the axial position of the workpiece (11, 18) by means of a laser light line (14) projected at right angles to the workpiece axis, the positio... | 06/10/2003 |
| 6409573 | Combination grinding machine A combination grinding machine grinds a plurality of axially arranged portions of a workpiece by use of a grinding wheel supported rotatably on a first wheel head and a superfinishing wheel supported rotatably on a second wheel head. A numerical control u... | 06/25/2002 |
| 6334806 | Apparatus for and a method of machining two portions A grinding machine includes a spindle head for rotatably driving a crankshaft around a journal center as a rotational axis and, two wheel heads that support respective two grinding wheels and that advance and retract in a direction perpendicular to the ro... | 01/01/2002 |
| 6149502 | Crankshaft machining method A crankshaft machining apparatus for use in machining a crankshaft from a workpiece, includes: a bed; a pair of work heads mounted on the bed for fixedly supporting the workpiece to be machined at both ends thereof, respectively; at least one cutter head ... | 11/21/2000 |
| 6015336 | Grinding apparatus A grinding apparatus according to the present invention grinds a work having a plurality of non-circular work faces to be worked with a grindstone driven by a motor. The work faces are disposed at intervals. Distances between a grindstone unit, bearings a... | 01/18/2000 |
| 5984599 | Method and machine for rotary milling the crankpins and main bearing pins of crankshafts A crankshaft (6) is rotated about its axis (7), and all of its crankpins (28, 29, 30), which each respectively have an eccentricity (e) relative to the axis (7), and all of its main bearing pins (62, 63, 64, 65), which each have non-eccentric cylindrical ... | 11/16/1999 |
| 5797992 | Method for environmental treatment of heavy metals An improved method for decontamination of lead contaminated surface coatings utilizing calcium phosphate minerals. The method for decontamination of lead contaminated surface coatings uses solid calcium phosphate material added to the abrasive blasting me... | 08/25/1998 |
| 5707187 | Crankshaft milling apparatus A crankshaft milling apparatus is provided including a bed having a front and rear side. The bed includes a slanted portion on the rear side of the bed. A milling unit is pivotally mounted on the rear slanted portion of the bed with the milling unit carry... | 01/13/1998 |
| 5598618 | Mainrotor machining process and apparatus A method and apparatus for making a globoid screw for use as a mainrotor in a compressor or expander wherein a cylindrical rotor body is mounted for rotation about the longitudinal axis thereof, a cutter having a plurality of teeth at spaced locations aro... | 02/04/1997 |
| 5537866 | Method and device for correcting imbalance of pneumatic vehicle tires by removing bead material A method for correcting tire imbalance of a tubeless pneumatic vehicle tire includes the step of mounting the tire on a master wheel rim of great manufacturing precision and having a design that is identical at least in its seat surface to commercial whee... | 07/23/1996 |
| 5520570 | Workpiece radial locator device and method A radial locator is carried by the bed of a cam lobe grinding machine proximate the workpiece chuck. An initial locating pin is carried by the chuck to sense a rough locating hole in a sprocket carried by a cam shaft to be disposed in the chuck to have it... | 05/28/1996 |
| 5331769 | Grinding apparatus and method Grinding apparatus including a grinding disc for grinding a tool having tungsten carbide tips is disclosed, and a recirculating coolant system is provided with a magnetic separator for removing particles of tungsten carbide from the recirculating coolant.... | 07/26/1994 |
| 5189846 | Chuck indexing arrangement and method An indexing device for a grinder selectively positions the rod bearing journals of a crankshaft at a preselected location relative to an abrasive wheel of the grinder. The indexing device includes a spindle connected to a drive shaft of the grinder, a chu... | 03/02/1993 |
| 5144772 | Method and apparatus for angularly indexing a crankshaft An indexing mechanism in a machine tool for selectively positioning plural pin portions of a crankshaft at the machining position aligned with the work spindle, wherein a indexing member engaging with the crankshaft through an engaging pin is rotated by a... | 09/08/1992 |
| 5030049 | Tool-outfitted turn broaching machine A turn broaching machine can be used either as a single turn broaching machine or as a set turn broaching machine with a minimal retooling expense by employing two independently movable tool supports into which either a single turn broaching tool or a tur... | 07/09/1991 |
| 4998383 | Means for resetting a cylindrical grinding machine To avoid manual rotation of the rotary table (3) on the turning slide (2) of an NC (numerical control) coordinate grinding machine having a grinding wheel (1), when a conical region is being ground on a workpiece next to a cylindrical region, an NC contro... | 03/12/1991 |
| 4963164 | Machine for surface treatment with means for positioning processing tools The present invention relates to a machine for automatic processing of workpiece surfaces. It relates in particular to means which allow the automatic positioning of tool holders which carry the tools necessary for processing the workpieces. These tools, ... | 10/16/1990 |
| 4934106 | Grinding machine A grinding machine comprises a grinding spindle which can be displaced in a horizontal plane relative to a workpiece. The grinding spindle drives a grinding wheel, which is mounted for rotary movement about a horizontal axis, and is arranged on a swivel c... | 06/19/1990 |
| 4928437 | Means and method for resetting a cylindrical grinding machine To avoid manual rotation of the rotary table (3) on the turning slide (2) of an NC (numerical control) coordinate grinding machine having a grinding wheel (1), when a conical region is being ground on a workpiece next to a cylindrical region, an NC contro... | 05/29/1990 |
| 4841682 | Process and device for producing turned parts from rods or bars In order to fabricate turned parts (18) out of a steel rod or bar (13) solely by grinding, the latter is chucked in oppositely disposed collets (14, 16) and is ground by two profiled grinding discs (20, 20') which act on it either sequentially or simultan... | 06/27/1989 |
| 4831782 | Apparatus for grinding a workpiece An improved grinding apparatus includes a base (100) upon which a headstock (20) is mounted. A carriage (500) is movable along ways (101, 102) disposed on the base. A wheel slide (63) on the carriage rotatably support a grinding wheel (71). A first mounti... | 05/23/1989 |
| 4791759 | Grinding wheel position detecting means for surface grinding machine A grinding wheel position detecting means for a surface grinding machine, in which a super-grain grinding wheel is composed of a base metal fastened to a longitudinal end portion of a rotating shaft and a super-grain layer provided on a longitudinal end f... | 12/20/1988 |
| 4790698 | Monotonic cutting machine An apparatus for machining a workpiece such as a crankshaft provides a superior combination of low initial and rebuilding costs, high flexibility in tool changeover and alteration of configuration, yet minimizes floor space and noise level while allowing ... | 12/13/1988 |
| 4773187 | Numerically controlled grinding machine A numerically controlled grinding machine provided with an angular type grinding wheel and a numerical controller for controlling the feed of grinding wheel based upon a control signal from a measuring head which measures the diameter of a cylindrical sid... | 09/27/1988 |
| 4766700 | Method and apparatus for determining the position of a workpiece in an NC-controlled machine A method wherein the position of a workpiece of an NC-controlled machine is determined, and an apparatus which includes at least one center point and a computing unit. The position of the center point is ascertained by a measuring device and the measured ... | 08/30/1988 |
| 4681491 | Milling machine The milling machine comprises milling units which are adapted to perform a movement for a machining of workpieces to form cross-sections which are concentric or eccentric to the axis of the workpiece. Each milling unit comprises a rotatable tool drum, whi... | 07/21/1987 |
| 4679973 | Crankshaft milling machine A pair of opposed spindleheads are rigidly mounted on a bed for holding a crankshaft to be machined between a pair of chucks on the ends of indexing spindles. One or more, preferably two, cutter assemblies are provided between the spindleheads for movemen... | 07/14/1987 |
| 4662118 | Grinding machine A cam grinding machine wherein the slide which supports the grinding wheel need not support the motor which rotates the grinding wheel so that the inertia of the slide is low and the slide can be reciprocated toward and away from the rotating workpiece at... | 05/05/1987 |
| 4625461 | Method and apparatus for positioning work supporting units in grinding machines The work supporting unit or units on the stationary or reciprocable work supporting table of a plain grinding machine are adjustable with reference to the table by one of the existing numerically controlled drives, such as the drive which reciprocates the... | 12/02/1986 |
| 4615149 | Feed control apparatus for grinding machine A feed control apparatus for a numerically controlled grinding machine having a work table movable in a first axis direction, a wheel head provided thereon with a grinding wheel of the angular type and movable in a second axis direction perpendicular to t... | 10/07/1986 |
| 4614467 | Cam milling machine A cam milling machine having a headstock and a tailstock, which are fixed on a bed and are horizontally spaced from each other for carrying at a time two camshafts to be rotatable respectively on their axes which extend horizontally in parallel relation w... | 09/30/1986 |
