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Class 408/239R - With tool-retaining means


Subclass of Class 408 - Cutting by use of rotating axially moving tool
Definition: Device having means mounted thereon to secure a tool to
No. of patents: 518
Last issue date: 03/13/2012


1                      
NumberTitleIssue Date
8132990Bit holding apparatus for use with a power tool
An apparatus includes a rotatable device, which may be a keyless chuck, a keyless chuck adapter, a collet chuck, a collet adapter, a set screw bit retaining chuck, or a set screw bit retaining adapter. The rotatable device is configured to be mounted to a power tool...
03/13/2012
7997837Power tool
It is an object of the invention to provide a technique in a power tool having a detachable bit holder for preventing a bit holder from being detached from the tool body even if unexpected external force is exerted on an operating member for lock release. A represen...
08/16/2011
7802948Drill extender
The invention is a drill bit extender and method that enables holes to be formed or screws to be driven remote from a drill motor. It includes a drill adapter for attaching to a drill bit, hole saw, or spade bit, for example. The drill adapter accepts a threaded rod...
09/28/2010
7431543Machine reamer
A machine reamer has a base and a reamer head configured as a one-piece indexable insert that axially projects beyond the front of the base. The indexable insert can be introduced in a front insert seat of the base with an axially projecting, preferably conical shou...
10/07/2008
7404563Reversible drill and drive tool II
A tool includes a pair of spaced apart substantially parallel arms carrying a mounting member to which are detachably connected axially oriented driver and drill elements. The mounting member is moveable along the arms reciprocally between a first position where it ...
07/29/2008
7396196Cutting machining tool
A cutting machining tool, especially of a boring bar type, has a holding device (10), one end of which is provided with a fixing shaft while its other end is provided with a seat (12) for a removable cutting member (16). The cutting member encom...
07/08/2008
7374377Bit holding apparatus for use with a power tool
An apparatus includes a rotatable device, which may be a keyless chuck, a keyless chuck adapter, a collet chuck, a collet adapter, a set screw bit retaining chuck, or a set screw bit retaining adapter. The rotatable device is configured to be mounted to a power tool...
05/20/2008
7371034Drilling attachment
A drilling attachment for use in wet and dry drilling operations includes a housing having first and second fluid conduits, and a drive shaft mounted within the housing and having fluid transmitting first and second end portions in fluid communication with a respect...
05/13/2008
7367087Engraving and marking device particularly for machine tools and the like
An engraving and marking device, usable in machine tools and the like, includes a supporting member provided with a coupling which is engaged by a spindle of a machine tool and supports a toolbit by means of an elastic support. The device is adapted to engrave and m...
05/06/2008
7367762Main spindle apparatus and tool holder clamp unit used therefor
A main spindle apparatus has a main spindle having a through hole, a main spindle head rotatably supporting the main spindle therein, a tool holder clamp unit including an unit main body having a tool mounting hole to which a tool holder is mounted, a clamp mechanis...
05/06/2008
7364168Device for assembling the casing and the body of a hydraulic rock-breaker
The inventive device includes a casing, inside of which the body is accommodated that has the hydraulic striking mechanism, inside of which a bush is mounted for guiding a tool. Said tool is held in a manner that enables it to rotate in the guiding bush and its hori...
04/29/2008
7360606Hand machine tool with a removeable tool holder
A hand power tool has a striking element via which a tool (10) in a tool holder (12) can be driven in striking fashion, which the tool holder can be detachably secured—via its body (14)—to a drive part (16) via at least one locking el...
04/22/2008
7354230Bit holding apparatus for use with a power tool
An attachment (10) for use with a power tool (12) which can conveniently convert a rotatable chuck (14) or adapter (78) used with a first bit device (22) to usage with a second bit device (36) and vice versa. Either first or...
04/08/2008
7354228Drilling tool for insertion of cabling
An improved drilling tool for drilling into and through walls for the purpose of inserting cabling within same, comprising a drill bit and an elongated primary shaft suitably adapted to create a chaseway within a wall during the drilling process. The elongated prima...
04/08/2008
7341411Tool holder structure
A tool holder structure includes a holder installed on a connecting portion of a machine for holding a tool, the holder has a connecting cone for connecting the connecting portion, and a latching portion with an external diameter larger than the connecting cone disp...
03/11/2008
7341409Tool for chip removing machining
The present invention relates to a tool and a male part for chip removing machining. The tool includes a male part and a holder for the male part. The male part includes a radial and axial supporting and positioning portion and a threaded portion. A largest diameter...
03/11/2008
7335208Tightening instrument for orthopaedic surgery of the spine
The tightening instrument is made up of two parts (2,4) joined to each other by means which are designed to automatically uncouple the said two parts (2,4) by shearing rupture of a pin (8) when a predetermined tightening torque is reached, a fir...
02/26/2008
7334970Fast change bit holder device
A method and apparatus for forming apertures and inserting fasteners in a workpiece is disclosed. One embodiment relates generally to a bit holder device for forming apertures and inserting fasteners into a workpiece. This embodiment comprises a tool bit, a hex hold...
02/26/2008
7331742Spindle unit of machine tool
A hollow portion of a spindle through which a draw bar and a disc spring assembly are inserted has a closed chamber structure and constitutes an oil pool chamber in which a lubricating oil is filled. The bearing portions that support the draw bar in the oil pool on ...
02/19/2008
7331262Drive bit holder and method of manufacturing
A bit holder is provided which includes a body having a cavity formed with an upper portion and a lower portion, separated by a ridge-like protuberance which has a cross sectional profile smaller than that of the upper portion and the lower portion. The ridge-like p...
02/19/2008
7328903Chuck
A chuck has an attachment device for attaching the chuck to a machine spindle and a collet with clamping jaws defining an insertion opening at an end of the chuck opposite the attachment device. A sliding sleeve surrounds the clamping jaws and is axially moveable in...
02/12/2008
7326010Motor spindle
A motor spindle for machine tool. The motor spindle having a spindle housing mounted on a machine part, a work spindle supported in the spindle housing in axially spaced roller bearings, an electric drive motor the stator of which is fixed in the spindle housing and...
02/05/2008
7320567Clamping device
The invention relates to a clamping device for clamping a tool (8), or tool holder in a working spindle (4), in particular, of a machine tool, comprising a drawbar (10), arranged to be displaced within the working spindle (4), a clamping ...
01/22/2008
7318692Spindle for a machine tool with improved tool ejection feature
A spindle unit for a machine tool includes a drive unit having a drive shaft and a spindle head assembly constructed for receiving a tool and having a hollow spindle head shaft driven by the drive unit. Arranged for axial displacement in the hollow spindle head shaf...
01/15/2008
7311482Main shaft device and machine tool with the same
An object of the invention is to provide a spindle apparatus which facilitates assembling and removing operations at the time of maintenance and which is low cost. In the invention, the diameter becomes smaller in the order of an inner peripheral diameter of an oute...
12/25/2007
7309194Variable radius balanced boring head
One or more embodiments of the invention enable a boring head to hold a boring tool at an adjustable offset from the axis of rotation in a balanced configuration while maintaining stability when rotating at high speed. The apparatus comprises a boring head body, a b...
12/18/2007
7300234Power transmission with bead drive
A power transmission is provided. The power transmission includes a housing including a continuous channel following a three-dimensional path. A plurality of beads is located within the continuous channel and movable therein. A first sprocket is rotateably connected...
11/27/2007
7293942Tool apparatus
A cutting tool apparatus having a shank and a tool support extension disposed longitudinally adjacent the shank and extending in a direction distal the shank, wherein the tool support extension includes an incurvate taper profile. ...
11/13/2007
7293312Multipurpose skateboard tool
A compact multipurpose tool including a bit head, a hollow first cylinder that defines a plurality of open-end wrenches on one end, and a second cylinder that communicates with the bit head and can be at least partially housed within the hollow first cylinder. In fu...
11/13/2007
7290470Multi-bit driver with rotatable sleeve
A rotary tool includes a tool holder, a reversible bit, and an outer rotatable sleeve. The tool holder includes a socket and a shank. The socket includes an opening extending rearwardly from an end thereof. The shank is integral with and extends rearwardly from the ...
11/06/2007
7287940Device for fixing a tool on a shaft and machine spindle comprising same
The invention concerns a device (1) for fixing a tool on a shaft (2), comprising a drawbar (3) which can slide axially inside the shaft (2) and which is used to releasably lock tools fixed on the shaft (2), in particular for automa...
10/30/2007
7287941Apparatus for amplifying the pull back force on a lock rod used to secure a toolholder
An apparatus for pneumatically amplifying the force acting upon a lock rod to retain a toolholder within a toolholder receiving member has a spindle extending from the toolholder receiving member and at least two in-line dual acting piston/cylinder modules within a ...
10/30/2007
7284761Bit stop for drill chuck
A tool bit stop located on an inner surface of a clamping jaw of a drill chuck. The tool bit stop is located a distance from a jaw gripping surface of the clamping jaw. The tool bit stop is adapted to provide a surface to register an end of a tool bit in a consisten...
10/23/2007
7281888Tool for cutting machining
The tool exhibits a first tool part (2) and a second tool part (3), which possess a common axis of rotation (A). The first tool part (2) is provided with an alignment pin (4) and exhibits at its root an annular surface (5). The sec...
10/16/2007
7278196Interlocking tool holder
An end mill chucking structure for chucking an end mill. The chucking structure includes an end mill holder; a shank receivable in an axial opening in the holder; a cone having an exterior cone shape adapted to be received in a drive spindle and an axial opening tha...
10/09/2007
7273332Method and apparatus for through-hole placement in a building structure
A method and apparatus for creating a through-hole in a building structure includes selecting a first location on a first side of the building structure that will define a first opening of the through-hole; disposing a magnet at the first location; selecting a secon...
09/25/2007
7258351Quick-action chuck
A quick-action chuck, in particular for a power tool, has an actuating element (20) and a control device which includes at least one mechanism (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking...
08/21/2007
7258350Chuck for receiving a rotary-percussion tool
A chuck for receiving a working tool (2) rotable about a longitudinal axis (A) includes a receiving sleeve (3) having a guide surface (12) extending along the longitudinal axis (A) and at least three, axially extending, up to a free end surface ...
08/21/2007
7258349Hand power tool
A hand power tool selected from the group consisting of a drill hammer and an impact hammer has an exchangeable tool holder, a guide pipe which receives the tool holder at its free end, a locking device arranged on the guide pipe and operative manually for fixing th...
08/21/2007
7251897Blade clamping device
The present invention relates to a quick-change saw blade clamping device which includes an output shaft, a cylindrical rotatable sleeve and a torsion spring. The output shaft is coupled to a blade carrier which is disposed within the cylindrical rotatable sleeve. A...
08/07/2007
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