Class 72/90 - Including stationary tool

Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein one of the tools is fixed against
No. of patents: 30
Last issue date: 06/19/2007

Number	Title	Issue Date
7231794	Method for manufacturing a worm shaft An object of the present invention is to provide a method of manufacturing a rotational shaft having a worm, wherein a worm portion has a small bending amount. According to the method of the invention, a worm portion is formed at a worm forming portion by a rolling ...	06/19/2007
7231795	Automatic rolling machine with flat chasers An automatic rolling machine with flat chasers, comprising a motionless plate and a movable plate. The movable plate is fixed to a supporting structure that has a reciprocating motion actuated by means of a spindle, crank and linkage, the spindle being supported by ...	06/19/2007
7051565	Cold forming machine There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed. ...	05/30/2006
7032423	Hydraulic circuit for linearly driving a machine-tool slider in both directions A hydraulic circuit for linearly driving a machine-tool slider in both directions, comprising an hydraulic cylinder (5) whose piston rod (4) is connected to a slider and which is fed with pressurized fluid from a reservoir (14) by a pump (15	04/25/2006
6957557	Threaded fastener with dual reinforcing leads for facilitating manufacture of the fastener, thread rolling die for forming the threaded fastener, and method of manufacturing the threaded fastener A new and improved thread rolling die for forming a new and improved threaded fastener, and a new and improved method or technique of manufacturing the new and improved threaded fastener, is disclosed wherein the new and improved threaded fastener comprises a first,...	10/25/2005
6192727	Mold seat adjusting structure of thread rolling machine A thread rolling machine is provided with a structure for adjusting a fixed mold seat of the machine. The structure comprises a first slide plate, a second slide plate mounted slidably on the first slide plate, and a fixed mold angle adjusting mechanism m...	02/27/2001
6125523	Stent crimping tool and method of use A hand held tool for crimping a stent onto a balloon of a catheter is disclosed. The stent crimping tool is operated in one hand by squeezing two plates together while simultaneously displacing the plates linearly to crimp and roll the stent held between ...	10/03/2000
5613391	Machine and method for knurling the tip of a needle A machine and method for knurling an end portion of a cylindrical workpiece including a hypodermic needle or biopsy needle. The machine includes a base to which a reciprocating mechanism and a serrated block are attached. A pressure bar is positioned abov...	03/25/1997
5560238	Thread rolling monitor A thread rolling machine in which the dies are monitored for a mismatch condition by a proximity sensor responsive to displacement of the moveable die in a direction parallel to the axis of the workpiece. This displacement, which occurs when a mismatch co...	10/01/1996
5542275	Flat die thread roller A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the w...	08/06/1996
5515766	Cartridge re-sizing apparatus Disclosed is a machine for re-sizing spent ammunition cartridges, such as spent brass cartridges for hand guns. A pair of forming rails which move with respect to one another to roll the cartridge between the rails in order to restore the cartridge to the...	05/14/1996
5417096	Method for producing a thread rolling machine for use with different die sizes A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the w...	05/23/1995
5381682	Apparatus and method of manufacturing masonry fasteners A method and apparatus for manufacturing a masonry fastener having a helical portion. A workpiece is positioned between a pair of tools mounted for relative movement. Both tools have faces defining a plurality of raised and recessed portions that extend g...	01/17/1995
5345800	Flat die thread roller A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the w...	09/13/1994
5230235	Flat die thread roller A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the w...	07/27/1993
5131250	Flat die thread roller A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the w...	07/21/1992
5105586	Abrading tool and method of manufacture An abrading tool and method of manufacture wherein a non-uniform abrading surface is formed on the tool by multiple passes of dies having similar non-uniform surfaces....	04/21/1992
4881395	Process and apparatus for fabricating stepped nails A process and die unit for fabricating stepped nails wherein a top portion of a blank is pressed into a rough slender tip portion at the first step of the process, and a shank portion of the blank is pressed in the second step of process so as to have thr...	11/21/1989
4754631	Flat die thread roller The stationary die of a flat die thread rolling machine is supported on a series of stacked members which may be automatically unclamped, automatically adjusted and then automatically re-clamped to hold the stationary die in a precisely adjusted position ...	07/05/1988
4655066	Device for straightening cold-deformable, rotationally-symmetrical workpieces A device is described for straightening rotationally symmetrical, cold-deformable workpieces, wherein these workpieces are deflected between bearing and straightening points as far as the plastic stress region. The workpieces are simultaneously set in rot...	04/07/1987
4615197	Thread rolling monitoring system A thread rolling monitoring system in which one or more signal generating devices is provided in the mounting system of the stationary die of a pair of thread rolling dies. A sensor develops a signal which is a function of the reaction forces in a directi...	10/07/1986
4583385	Flat die thread roller The stationary die of a flat die thread rolling machine is supported on a series of stacked members which may be automatically unclamped, automatically adjusted and then automatically re-clamped to hold the stationary die in a precisely adjusted position ...	04/22/1986
4571971	Rod cutting and threading machine A machine for cutting and threading bicycle spokes (11) comprising a cradle (15) for receiving a spoke, a cutter mechanism (17) positioned to intersect and cut off the spoke at a predetermined point, and a thread rolling apparatus (56) positioned adjacent...	02/25/1986
4488418	Apparatus for roll sizing diameters An apparatus and method are provided for roll sizing the periphery of cylindrical workpieces to finish and size the workpiece to a close tolerance diameter. The method and apparatus can also be used to prefinish and presize cylindrical workpieces in prepa...	12/18/1984
4455854	Mill for transverse rolling A mill for cross rolling, comprising a detachable housing (1) inside which there are disposed parallel plates (4) and (5) provided with wedge-shaped deforming tools (9) and (10). On upper and lower portions (2) and (3) of the housing (1) there are provide...	06/26/1984
4259758	Method of making a self-tapping screw A self-tapping screw of the type including a head, a depending cylindrical portion, a tapered point and a thread running continuously from the cylindrical portion onto the tapered point and a method of making same are disclosed. A screw blank is formed wi...	04/07/1981
4252009	Re-rolling attachment for thread rolling machine A significantly simplified, rugged attachment is provided for a standard thread rolling machine for quick and easy re-rolling of threaded parts for producing high quality threads. A pressure foot is mounted between an open end of a feed chute and the star...	02/24/1981
4229966	Adjustable holder for the stationary die of a thread rolling machine The stationary die of a thread rolling machine is mounted in a holder which enables the stationary die to be tilted relative to the movable die about an axis which coincides with the upper edge of the thread forming face of the stationary die. The upper e...	10/28/1980
4016738	Traverse wedge forming machine A transverse wedge forming machine is mainly designed for producing (forming) bodies of revolution, such as stepped shafts. The transverse wedge forming machine of the present invention comprises a housing wherein two parallel plates: a movable and a fixed one...	04/12/1977
3953996	Spark wheels, method of manufacturing spark wheels, and dies for use therein By forming a plurality of substantially parallel grooves in the peripheral surface of a cylindrical spark wheel blank, and then rolling the grooved spark wheel blank between at least two cooperating dies, an inexpensive, unique spark wheel is rapidly and ...	05/04/1976

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Class 72/90 - Including stationary tool