Class 72/341 - Machining between plural metal-deforming operations

Subclass of Class 72 - Metal deforming
Definition: Subject matter, not provided for in preceding subclasses,
No. of patents: 34
Last issue date: 05/13/2008

Number	Title	Issue Date
7370505	Method of forming blind holes in a sheet of material A method of forming blind holes in a sheet material is provided. The method includes punching the sheet material to define a hollow projection through the material and shearing a layer of material from the sheet material to form a sealed end over an opening of the h...	05/13/2008
7353683	Surgical needle manufacturing process A process for manufacturing a surgical needle incorporates at least one pressing operation which, preferably, in conjunction with a trimming and/or etching process, ultimately forms the sharpened needle end. The grinding operation in the preferred process does not p...	04/08/2008
7343678	Method and device for production of a hollow section The invention concerns a method and apparatus for production of a hollow section (1) in which a coiled pre-shape of the hollow section (1) is deep drawn from a sheet part, which is pre-bent after a trimming process and coiled into the final shape of ho...	03/18/2008
7174757	Lock cylinder and key set Disclosed is a lock cylinder and key set, which includes a lock cylinder, which has a keyway with two keyholes separated by a partition, and a key, which has two blades insertable into the two keyholes of the keyway for acting against respective pins in the lock cyl...	02/13/2007
7093470	Methods of making integrally stiffened axial load carrying skin panels for primary aircraft structure and fuel tank structures Methods for making skin panels suitable for use in aircraft structures and fuel tank structures, such as fuselages and reusable launch vehicle propellant tanks. A first method includes the following steps: machining a starting plate to a final part geometry; and exp...	08/22/2006
7074290	Cushioning material for packaging and method and device for manufacturing the cushioning material A recyclable cushioning material for packaging obtained by forming a cushioning material for packaging used to protect articles supplied for physical distribution from being impacted with one sheet of corrugated fiberboard and a method and device for manufacturing t...	07/11/2006
7036227	Process for making ratchet wheels A process for manufacturing ratchet wheels including the steps of: forming a cylindrical forging billet by hot or cold forging, the forging billet having a thru hole of inter-communicating recesses which are pre-formed in a forging die; providing a broach having tee...	05/02/2006
7022195	Method of manufacturing inner blade for electric razor An inner cutter for a dry shaver is fabricated from a metal plate to have a plurality of blades each provided with cutting edges. The metal plate includes a plurality of parallel straight slits to leave an array of straight beams each defined between the adjacent on...	04/04/2006
6976381	Fuel injector, nozzle body, and manufacturing method of cylindrical part equipped with fluid passage To manufacture a cylindrical member, such as the nozzle body of a fuel injector, in which a fluid passage is formed at high productivity and to improve the reliability. A cylindrical member, such as the nozzle body of a fuel injector, in which a fluid passage...	12/20/2005
6968723	Method of punching small hole and method of manufacturing liquid ejection head using the same An upper die and a lower die are provided. An unpenetrating hole is formed at an upper face of a metal board with the upper die, so that a protrusion is formed on a lower face of the metal board at a portion corresponding to the unpenetrating hole. A flat portion is...	11/29/2005
6802916	Selectively cold worked hydraulic motor/pump shoe A method of manufacturing a wear resistant shoe (26) includes upsetting (46) one end portion (38) of cylindrical member to work harden that portion to a substantial depth, machining (48) the cylindrical member portion to finished dimensio...	10/12/2004
6775888	Forming system and process A system for forming workpieces, has at least one forming tool has at least one machining device with a local energy feed. The local feed is provided for machining the workpieces as a separate station within the forming system. ...	08/17/2004
6389867	Machining process for a gauging or measuring head Gauging head and apparatus for linear dimension checking of mechanical pieces comprising an integral element that defines an arm carrying a feeler, a reference portion, and a fulcrum that enables rotations of the arm with respect to the reference portion,...	05/21/2002
6155093	Method of fabricating metal electronic enclosures A method of forming metal enclosures specifically for electrical or electronic components which require precision in the formation of enclosure wells for containing the components. In accordance with the present invention the method comprises the steps of...	12/05/2000
5672218	Method of straightening metal bars having extremely low levels of residual stress after straightening operations are completed Method of straightening a metal bar in which the metal bar is straightened by transporting the metal bar between a pair of rollers at a first straightening pressure. An outer layer portion of the metal bar is then removed in order to provide the metal bar...	09/30/1997
5333485	Process for flattening the end section of a tube Process for flattening the end sections of a tube. The end section is given a preparatory treatment such that two recesses or notches lying opposite one another are made in the tube wall. The tube wall is then pressed together so that the fold lines run t...	08/02/1994
5072608	Reduction of transient thermal stresses in machine components A method of treating a surface of a machine element to permit the outer layers thereof to freely expand when repeatedly subjected to sudden temperature variations without thermal stressing the inner layers thereof....	12/17/1991
4768369	Method of forming a pipe fitting A method of forming a pipe fitting of unitary construction having a tubular section with a radial flange at one end of the tubular construction. The method includes forming a solid cylindrical bar, upsetting one end of the bar to form a head thereon, draw...	09/06/1988
4706869	Riveting attachment An attachment for a staple gun tacker having a staple driving blade is disclosed which is adapted to be used in driving and setting a rivet of the type having a pin member mounted in a headed rivet shank having an expandable workpiece piercing free end. T...	11/17/1987
4698889	Synchronizer blocker ring core of low material thickness with coined lugs A new core for a synchronizing ring for gear synchronization is produced using a punching and stamping method. The lugs for coupling to the clutch are produced by stamping from the material of the conical core....	10/13/1987
4599775	Method for manufacturing synchronizer clutch teeth A method for making clutching teeth having crown bevels and rear cut sections includes fine stamping crown bevels on the front face of the raw part, trimming the outer surface of the part, bending the portion of the part in which the teeth are being forme...	07/15/1986
4558585	Ultrasonic angle beam standard reflector This invention is a method for providing an impression profile in a reference standard material utilized in inspecting critically stressed components with pulsed ultrasound. A die stamp (10) having an I letter, reference numeral (36), is used to impress a...	12/17/1985
4531395	Modular drawbead structure Modular male and female drawbead structures comprise wafers of varying thickness which abut each other and are longitudinally wholly or partially aligned relative to each other in respective slots of die binders. The male structure has a body portion incl...	07/30/1985
4498327	Cylinder locks and keys therefor A method of forming a key including providing a key blank of V-shaped transverse cross section so as to have two blade portions joined by a base portion. The method further includes forming teeth on the blade portions and then bending the blank to a subst...	02/12/1985
4493201	Method of making a metal bottle for exotic gases under pressure A strong, seamless one-piece metal bottle of substantially uniform wall thickness for containing and dispensing gas under pressure is produced from a flat metal piece by a series of deep-drawing operations to provide an elongated cylindrical shell having ...	01/15/1985
4454744	Method of forging a bifurcated member A method of forging a bifurcated member having closely spaced parallel portions including the steps of forging the member to form diverging bifurcated portions, and coining the diverging bifurcated portions inwardly toward each other into substantially pa...	06/19/1984
4314472	Method for producing a magnetic rotatable member for an electromagnetic clutch A method for producing a magnetic rotatable member as a part of a pulley in an electromagnetic clutch is proposed. In order to reduce the producing time and the wasted material amount, the rotatable member is formed by press-drawing a magnetic circular pl...	02/09/1982
4314468	Stamping in liquid female tool The present invention provides an improved method for hydro-mechanical stamping wherein hollow products are formed from flat blanks by the cooperation of a punch and a liquid female tool. The present method particularly provides for submerging in the liqu...	02/09/1982
4289014	Double action domer assembly A domer assembly for use with a punch reciprocable along a path on a frame of an ironing machine to reform an end wall of a container includes a center domer element surrounded by an annular element that projects beyond the surface of the center element w...	09/15/1981
4249410	Die press having selectively variable die access clearance A press has at least one reciprocal ram securing a die movable to and from an opposing die, the ram normally spacing the dies apart with a predetermined normal clearance. The die is retained in the ram assembly with at least one tensioned longitudinal bol...	02/10/1981
4128928	Method of forming a curved trailing edge cooling slot A curved slot is formed between an internal cavity of an airfoil and the trailing edge thereof by temporarily deflecting the airfoil trailing edge portion toward the suction side thereof, forming a straight slot in the trailing edge portion while it is in...	12/12/1978
4044589	Rotary piston machines A liner element for a housing of a rotary piston machine is manufactured from a flexible metal strip and is deformed for example by pressing on one side thereof such that when the liner is assembled in a semi-cylindrical bore in the housing, the inner sur...	08/30/1977
4035963	Method of forming dual mirrors A method of forming a pair of identical spherical mirrors having their centers of curvature separated in space. A blank having substantially parallel planar front and rear surfaces is provided. The front surface is scored to divide it into two surface seg...	07/19/1977
4008595	Method and apparatus for arcuately bending and rolling an elongated metallic workpiece An elongated workpiece is passed along an arcuate path defined by a pair of end rollers flanking a middle roller. At least one of the rollers is formed with a workpiece-receiving groove having flanks at least one of which has a milling formation for remov...	02/22/1977

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Class 72/341 - Machining between plural metal-deforming operations