Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7891918 | Drill A drill has a housing, a drivable drill spindle rotatably mounted in the housing, a chuck body coaxially connected and rotationally fixed to the drill spindle, a tightening sleeve rotatable on and relative to the chuck body, and jaws moveable relative to the chuck b... | 02/22/2011 |
| 7811033 | Tool with remote switch A non-pneumatic system for use with a workpiece is described. A clamp assembly having a clamp pad is secured to the cabinet. An electrically operated tool is movably secured to the cabinet. The tool has a remote switch which when activated in turn activates the tool... | 10/12/2010 |
| 7740425 | Smart accessories for power tools Accessories for power tools and combinations are provided. An accessory for a power tool may include a body including a connecting portion for connecting the accessory to the power tool and a communication member positioned on the body for communicating with the pow... | 06/22/2010 |
| 7699566 | Tool chuck with sleeve and clutch mechanism A tool chuck may include a chuck body defining a longitudinal axis. A sleeve may be mounted on the chuck body and axially fixed relative to the chuck body. A clutch part may be provided on the sleeve. The clutch part may interact with a cooperating clutch part mount... | 04/20/2010 |
| 7677844 | Electronic clutch for tool chuck with power take off and dead spindle features A power driver may include a motor that rotates upon receiving an input current. A tool chuck may have chuck jaws to hold an accessory. The tool chuck may be coupled to the motor. A power take off mechanism may be connected between the motor and the tool chuck. The ... | 03/16/2010 |
| 7375361 | Optical alignment device for machine tool The orientation of a machine 2 relative to a work-piece 10 is manually controlled by means of an alignment device 4. The device 4 includes a light source 24 rigidly attached to a foot 12 that is resiliently movably attached ... | 05/20/2008 |
| 7367761 | Tool, tool holder and machine tool A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed than that of the spindle of the machine tool without supplying elect... | 05/06/2008 |
| 7270194 | Drilling machine with pneumatic control A pneumatic drilling machine is provided, comprising a pneumatic motor, a circuit for connecting the motor to a source of compressed air, a tool holder spindle, and a drive mechanism. The drive mechanism comprises a coupling shaft which can be moved to select a firs... | 09/18/2007 |
| 7264426 | Apparatus and methods for servo-controlled manufacturing operations Apparatus and methods for servo-controlled manufacturing operations are disclosed. In one embodiment, an apparatus includes a base member, a drive platform spaced apart from the base member by a separation distance, and a plurality of guide members extending between... | 09/04/2007 |
| 7192223 | Servo motor die tapping unit A servo motor driven tapping unit for in die installation has a tap holder pitch adapter assembly mounted for removal while the unit is in the die to facilitate tap and pitch adapter replacement. In one embodiment, the tap holder pitch adapter assembly extends trans... | 03/20/2007 |
| 7189033 | Apparatus and methods for thrust sensing valves Apparatus and methods for thrust sensing valves are disclosed. In one embodiment, an apparatus includes a housing including an input port and an output port and further having a mounting portion adapted to be coupled to a manufacturing tool. A supply member is opera... | 03/13/2007 |
| 7178436 | Method of cutting carbon and alloy steel The present invention discloses a method and apparatus for controlling the load on the blade of a steel-cutting saw A programmable logic controller senses the spindle motor load current and compares it with the desired optimum operating current. Variations in hardne... | 02/20/2007 |
| 7144207 | Fluid chuck device and method In a valve disposed between a fluid supply and a socket of a chuck and configured to regulate the flow of the fluid to the socket. There is a seal screw for modulating a preload tension. This seal screw has a first sealing surface. The valve further includes a secon... | 12/05/2006 |
| 7140818 | Tool, tool holder, and machine tool A tool attachable to a spindle of a machine tool in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., giving a higher rotational speed than that of the spindle of the machine tool without supplying elect... | 11/28/2006 |
| 7123984 | Threading control method and apparatus therefor A threading control method and apparatus therefor is provided, in which, when carrying out thread-cut machining operations several times at one position, synchronized with main-spindle rotation and controlling movement of a threading spindle, deviations in thread gr... | 10/17/2006 |
| 7109675 | Power tools Battery-powered tools may include battery 1 or battery pack BP and a drive source (e.g., motor M) for generating power using current supplied from the battery. A switch 3 may electrically connect the battery to the drive source. A voltage detector may ... | 09/19/2006 |
| 7070509 | Tap position sensor with offset detection In an integrated cutting and tapping tool, a part in the form of a strip is held on a strip support with a hole facing a tap carried by a tapping tool. The bottom dead center point of the tap is detected by a feeler associated with a multiplier lever pivoting about ... | 07/04/2006 |
| 7055620 | Hand-held machine tool The invention is based on a hand power tool having an electric motor (12) located in a housing (10), via which an insertable tool (16) situated in a tool mount (14) is capable of being driven in a rotating manner, and having a safety devi... | 06/06/2006 |
| 7056027 | Bearing for a rotatable shaft subject to thermal expansion A bearing for rotatably supporting a cylindrical shaft within a frame cylindrical support surface in which the shaft is subject to thermal expansion, the bearing being formed of a tubular member having opposed ends and having an axial passageway therethrough, the ou... | 06/06/2006 |
| 7048077 | Drilling machine with pneumatic control A pneumatic drilling machine is provided, comprising a pneumatic motor, a circuit for connecting the motor to a source of compressed air, a tool holder spindle, and a drive mechanism. The drive mechanism comprises a coupling shaft which can be moved to select a firs... | 05/23/2006 |
| 7011165 | Rotating electric hand tool implement with safety routine An electric hand tool apparatus (1) for driving a drill-like tool, which carries out an at least partial rotational movement, has within a housing (2), an electric motor (4) without or free of collector and slip ring, the rpm of which can be con... | 03/14/2006 |
| 6955508 | Apparatus and method for separately boring precisely aligned opposing screw holes in individual frame members to be joined at a miter joint An apparatus and method for separately boring precisely aligned opposing screw holes in individual frame members to be matingly joined at a miter joint. The apparatus comprises a first boring means for boring a first screw hole in the first frame member, a second bo... | 10/18/2005 |
| 6910836 | Impact driver for rotary tools Method and apparatus for improving the efficiency of the rotating cutter of a tool by converting at least part of the rotational torque applied to the cutter to repeated rotational impact forces. ... | 06/28/2005 |
| 6874980 | Controller for the electric motor of a high-speed spindle attachment used with computer-controlled milling machines An improved electronic controller for the motor of a high-speed spindle attachment used in conjunction with a cnc milling machine. The controller comprises preventative circuitry that protects the spindle assembly of the attachment from overload accruing as a result... | 04/05/2005 |
| 6859680 | Numerical controlling unit having tool-breakage detecting function A numerical controlling unit includes: an inputting part into which a machining program is inputted; an analyzing part that analyzes the machining program to generate an instructed spindle rotational speed and calculates a spindle load ratio of a load applied to a s... | 02/22/2005 |
| 6551033 | Tapping apparatus and method A CNC tapping machine includes a spindle to which a tap is attached and a spindle motor for rotating the spindle. The load torque acting on the spindle motor that is detected when performing a tapping procedure without a workpiece is stored in a memory as... | 04/22/2003 |
| 6476575 | Method and system for adaptive control of turning operations An adaptive control system for adaptively controlling a turning operation performed at a work piece by a turning tool adjusts a controlled input operation parameter F to maintain an output operation parameter ƊM substantially at a predetermined value ƊM... | 11/05/2002 |
| 6474914 | Tool-driving device, particularly for machine tools A tool-driving device (1), which is particularly provided for machine tools, has an internal drive (9), which serves to drive a tool. Also provided is a control device (36), which detects the movement of the tool-driving device (1) and correspondingly con... | 11/05/2002 |
| 6438446 | Material directory-spindle speed and feed rate calculator A programmable command module for inputting a surface foot rating parameter into a device for controlling the spindle speed of a cutting tool. Based upon the surface foot rating, the proper speed of the spindle is determined with respect to a particular c... | 08/20/2002 |
| 5954457 | Hand-held device A motor-operated hand-held device (1), such as a drilling device, has a rotary spindle 6 located in and projecting out of a housing (2). Rotational movement of a driving motor (8) is transmitted to a tool (7) situated in an end of the rotary spindle (6). ... | 09/21/1999 |
| 5914882 | Device for and method of preventing accidents in hand-operated machine tools due to tool jamming A device for and method of preventing accidents caused by jamming of a tool when working with hand-operated machine tools driving a rotating tool, especially hammer drills, is outfitted with an interrupter device for interrupting the action of the driving... | 06/22/1999 |
| 5902077 | Variable speed universal drilling tapping and reaming machine One of two arms is mounted adjacent one end thereof for rotation and axial adjustment on a cylindrical column which projects vertically upwardly from a generally flat, rigid base. The second arm is rotatably connected adjacent one end to the opposite end ... | 05/11/1999 |
| 5895177 | Machine tool with fault detection A machine tool includes a spindle having a cutting tool for cutting a workpiece. For fault detection, a control unit of the machine tool detects a value representing a torque applied on the spindle while the spindle is stopped in a state the cutting tool ... | 04/20/1999 |
| 5879111 | Hand-held device A motor-operated hand-held device (1), such as a drilling device, has a rotary spindle (6) located within and projecting out of a housing (2). Rotational movement of a driving motor (8) is transmitted to a tool (7) secured to the end of the rotary spindle... | 03/09/1999 |
| 5857814 | Apparatus for controlling tapping-drilling machine An apparatus for controlling a tapping-drilling machine is disclosed in which holes can be formed by means of drilling tools, and threads can be formed by means of tapping tools. A worm is elongately formed on a spindle, and a worm wheel which is meshed w... | 01/12/1999 |
| 5654894 | Gain changing control system for a threading apparatus A threading apparatus is capable of eliminating a rise delay in the feed velocity due to friction resistance and can perform high-precision threading even in high-speed tapping. A feed servo amplifier is controlled to operate using one of a plurality of g... | 08/05/1997 |
| 5584619 | Method of and arrangement for preventing accidents during operation of a manually-operated machine tool with a rotatable toolbit A method of and an arrangement for preventing accidents during operation of a manually-operated machine tool having a rotatable toolbit and a drive motor for driving the toolbit, wherein an operational condition of the toolbit is determined with a rotatio... | 12/17/1996 |
| 5558476 | Dual-motor-driven drilling machine and method of controlling currents flowing in motors An automatic drilling machine has an electric drilling unit on which a cylindrical cutter is rotatably mounted. The drilling machine includes a drill motor for rotating the cutter and a feed motor for linearly moving the cutter for the purpose of drilling... | 09/24/1996 |
| 5401124 | Hand-held power tool with jamming-detection sensor A hand-held machine tool has a housing, a tool rotatable about a rotational axis, a motor provided with a gear unit and driving the tool in rotation about the rotational axis, the gear unit having at least one rotating part which is arranged so as not to ... | 03/28/1995 |
| 5352069 | Method and apparatus for a numerically controlled tapping machine An improved numerically controlled machine tool is provided by resiliently coupling an independent drive mechanism to a toolholder which in turn is fitted to the numerically controlled machine. The drive mechanism in turn is coupled to a working tool used... | 10/04/1994 |
