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 |
| 7364513 | Golf club head with inserts for impact face A striking face for golf clubs, such as a driver, iron or putter comprising a plurality of bars retained in the club head body and forming the striking surface. The bars which comprise the striking face according to the invention may be designed and arranged to prov... | 04/29/2008 |
| 7331267 | Apparatus and method of cutting a work piece An apparatus for cutting a work piece is provided that includes a base frame with four upwardly extending supports defining a workflow path there between. A framework may be mounted to the base frame for supporting a rotatable carriage above the workflow path. A pai... | 02/19/2008 |
| 7261498 | Deburring tool and cutting insert therefor A deburring tool having an indexable cutting insert having four cutting edges. The cutting insert has a main body portion and a guide groove. The cutting insert is slidably retained in an insert pocket with the main body portion of the insert located in a generally ... | 08/28/2007 |
| 7036408 | Lenslathe with vibration cancelling arrangement A method and apparatus for substantially nullifying vibration and deflection in a single point lens turning lathe having a rapidly reciprocating lens cutting tool and shuttle assembly. The apparatus includes three or more tool shuttles of similar mass mounted for re... | 05/02/2006 |
| 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 |
| 7010860 | Hand-held cutting device A cutting device is operable with one hand for cutting a circle or an elliptical shape in a sheet of material. In a first embodiment for cutting elliptical shapes, the cutting device includes a first member for placement on the sheet material and a second member for... | 03/14/2006 |
| 6761096 | Method and device for producing workpieces with a non-circular internal and/or external shape In a method for producing workpieces having inner and/or outer contours deviating from a circular shape, at least one workpiece is clamped on a machine and the workpiece is driven in rotation about a rotational axis of the workpiece at a first constant velocity. At ... | 07/13/2004 |
| 6760961 | Piston machining An apparatus and method of utilization thereof is provided for machining pistons of reciprocating piston internal combustion engines. The piston is held in a work station by its interior cavity and the oil rings, oval side surface and hinge pin bore are machined on ... | 07/13/2004 |
| 6719505 | Orbital hand tool apparatus for drilling A hand tool apparatus uses a cutting tool with a first width and a tool axis to machine a hole in an object. The hole has a second width at least as large as the first width of the cutting tool. The apparatus includes a housing, a spindle unit in the housing for rot... | 04/13/2004 |
| 6711818 | Method for machining opening in workpieces A procedure to machine openings in work pieces which provides two cutting blades (11, 12), defining a cutting blade axis, adjacent to a work piece in which an opening is to be machined, the opening defining a distance between two oppositely positioned opening... | 03/30/2004 |
| 6622599 | Precision double-sided aspheric element A precision optical element is described, such as is used in thermal imaging systems in the infrared, 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 ... | 09/23/2003 |
| 6601484 | Method and tool for cutting inside corner A cutting tool for a machine tool is provided in order to cut an inside corner of a workpiece. The cutting tool has at least one cutting edge formed on its bottom. In operation, the cutting tool is rotated by the machine tool. Further, both cutting tool a... | 08/05/2003 |
| 6578453 | Inside diameter machining method An inside diameter machining method for machining inside a workpiece uses a turning tool utilized within a main body in the shape of a bar with a hook-shaped top end portion which has a cutting portion. When the machining diameter of the portion to be mac... | 06/17/2003 |
| 6565298 | Eccentric facing unit An eccentric facing unit wherein a tool driving shaft is concentrically disposed in a spindle for relative rotation with respect to the spindle. A tool-shaft supporting shaft is eccentrically disposed in a spindle and is connected with the tool driving sh... | 05/20/2003 |
| 6550360 | Method for chamfering the cam plate of a swash plate compressor A method for chamfering the cam plate of a swash plate compressor comprising a cylinder block provided with cylinder bores, pistons inserted into the cylinder bores to be slidable, a driving shaft, a cam plate slantedly fixed to the driving shaft and shoe... | 04/22/2003 |
| 6460437 | 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... | 10/08/2002 |
| 6318221 | Apparatus and method for forming sealing rings A process of manufacturing sinusoidal shaped sealing rings is provided in which the rings are machined from solid bars of material. The rings are machined from the outer diameter of the bar by means of OD turning, trepanning or face-grooving tool and a pa... | 11/20/2001 |
| 6227082 | Process and device for manufacturing workpieces with non-circular inner or outer contours as well as eccentrically positioned round boreholes and/or journals The invention pertains to a special process and devices for the production preferably by machining of workpieces with non-circular outer and inner contours such as squares, hexagons, ellipses, polygons and the like, or eccentric circular bores and/or tapp... | 05/08/2001 |
| 6202521 | Method, apparatus and controller for machining non-circular work pieces A method, apparatus and controller for machining non-circular work pieces. The apparatus, method and controller are preferably used in combination with rotating, equipment, such as a turning center having an x-y table capable of gross movements. The appar... | 03/20/2001 |
| 6122999 | Lathe apparatus and method In one form, the disclosure describes a lathe apparatus and method for manufacturing a product with a non-axisymmetric shape from a workpiece, such as a toric contact lens, comprises a spindle for rotating the workpiece about an axis of rotation, a cuttin... | 09/26/2000 |
| 6053082 | Holder for orbitable tool A tool holder has a housing rotatable about a holder axis, a motor mounted on the housing and having an output rotatable about a motor axis transverse to the holder axis, and a rotation sensor mounted on the housing and coupled coaxially to the motor. A d... | 04/25/2000 |
| 5850769 | Broaching cutter A broaching cutter comprises a first shaft coupled to a cutter bit-carrying second shaft in such a way that the second shaft rotates when the first shaft rotates and is also radially displaceable with respect to the first shaft so that the second shaft re... | 12/22/1998 |
| 5782585 | Precision drill for drilling noncircular bores A precision drill for drilling noncircular bores, comprising a drill bit on a shaft and a holder for the workpiece being drilled, for providing a drill that can operate economically at high speeds. The workpiece holder oscillates translationally in at lea... | 07/21/1998 |
| 5735652 | Broaching cutter A broaching cutter comprises a first shaft coupled to a cutter bit-carrying second shaft in such a way that the second shaft rotates when the first shaft rotates and is also radially displaceable with respect to the first shaft so that the second shaft re... | 04/07/1998 |
| 5730036 | Method of cutting ellipse contour with numerically-controlled machine tools There is provided a method of cutting an ellipse contour in a numerically-controlled machine tool which can to cut a target ellipse precisely while considering the diameter of the tool, and to machine a three-dimensional ellipse surface as well as a rotat... | 03/24/1998 |
| 5542324 | Form drilling or turning device A special device for producing by machining a multiplicity of shaped bores or shaped external surfaces, such as squares, hexagons, ellipses, polygons. This is done by superimposing a forced radial motion, produced by purely rolling-action elements, on the... | 08/06/1996 |
| 5431076 | Trimming apparatus An apparatus adapted for trimming a plastic covering from a mouth opening of a blow-molded universal urinal includes a retaining block for rigidly holding the urinal in position opposite a trimming apparatus. The apparatus mechanically moves a knife mount... | 07/11/1995 |
| 5429021 | Elliptical manway cutter A machine tool for resurfacing seats surrounding non-circular openings in members, such as elliptical manways, includes a housing adapted to be mounted in the opening, and a tool bit carried by a slide mechanism mounted on the housing for rotation about a... | 07/04/1995 |
| 5396821 | Apparatus and method of machining article of eccentric configuration An eccentric-shape machining apparatus as well as an eccentric-shape machining method are provided which can efficiently and accurately bore, contour or thread a workpiece about any position other than the rotational center of the workpiece. The workpiece... | 03/14/1995 |
| 5328306 | Tool spindle, in particular boring spindle A tool spindle for machining or producing elliptical surfaces, particularly elliptical bores, includes a housing (1) of two parts (31 32), a sleeve (2) rotatable mounted in the housing, a tool carrier shaft (3) rotatably mounted in the interior of the sle... | 07/12/1994 |
| 5174695 | Fineboring machine and process for producing bores with any polar and/or axial generating line Safe and structurally simple design for a finebore machine with a turning tool (3) mounted on a boring bar (2), whereby the excursion of the turning tool is produced by a piezoelectric servomotor without any magnetic actuation. This is achieved in the fol... | 12/29/1992 |
| 5150518 | Process for manufacturing inner and outer parts for a rotary piston machinein which the inner and outer parts have parallel axes To manufacture inner and outer parts for a rotary piston machine in which said parts have parallel axes and have interengaging helical engaging surfaces having convolutions in numbers differing by one and are operable to perform relative to each other rot... | 09/29/1992 |
| 5141434 | Drill An improved drill for creating oval openings in the jawbone for a tooth to be implanted therein. The drill includes movable cutters that cut an oval shape that matches the cross section of the oval implant by being rotatably driven and performing very fin... | 08/25/1992 |
| 5099727 | Mechanism and method for circumscribing oval shapes A mechanism is provided for circumscribing oval paths, wherein a pivotably mounted element is dynamically oriented so as to maintain a functional axis thereof constantly tangent to the circumscribed path. An orienting arm attached to the mounted element i... | 03/31/1992 |
| 4790222 | Apparatus for cutting various forms out of a picture frame mat or the like A device for cutting oval or circle shaped forms, as well as irregular or scalloped variations thereof, in picture frame mats or the like. It consists of a cutting unit releasably securable both to a stationary arm or a reciprocating arm. When the cutting... | 12/13/1988 |
| 4651599 | Method for producing workpieces having polygonal outer and/or inner contours Process for fabricating work-pieces with polygonal inner and/or outer profile, preferably by removal machining, wherein the work-piece pivots about a fixed axis (4) at constant speed while the tool (5) defines a closed loop path, wherein the rotation spee... | 03/24/1987 |
| 4648295 | Method for producing workpieces having polygonal outer and/or inner contours and apparatus for implementing the method Method for producing workpieces having polygonal outer and/or inner contours, preferably by machining, wherein the workpiece to be machined rotates at a constant speed about a stationary axis, while the tool is guided on a closed, curved path, with the ra... | 03/10/1987 |
| 4638694 | Manufacture of pistons Pistons and cylinders are manufactured to an oval shape, which is defined as being an oval where the ratio of the major axis to the major axis is between 1.1:1 and 3:1. Pistons and cylinders are generally finish machined by relative rotation between the t... | 01/27/1987 |
| 4612833 | Machine tools A cat-head type machine tool is controlled by an electronic control system (28, 31) so as to allow relative movement between the rotating tools (11, 12) and the stationary workpiece (22) within a revolution of the tools, such that non-uniform and/or barre... | 09/23/1986 |
| 4215603 | Brake drum turning machine A machine for machining brake drums wherein the cutting tool is cyclically retracted axially on its rotating spindle at a rate corresponding to the axial feed rate of the spindle and then quickly advanced on the spindle to the same extent so that the tool... | 08/05/1980 |
