Class 72/92 - Non-rotating concave surface

Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein the work-engaging face of the second
No. of patents: 24
Last issue date: 04/11/2006

Number	Title	Issue Date
7024900	Container beading Beading of containers such as two and three piece can bodies by rolling the can body between tools, typically a roll/roll or a roll/rail of a rotary turret system. During beading, a load is applied along the central axis of the can body, whereby axial and panel perf...	04/11/2006
6694791	Method of spin forming and part made thereof A method of cold forming a capped cylinder with geometrically spaced torsional engagement radial projections on an exterior side of the capped cylinder is provided. The method includes the step of striking a generally flat blank to form a drawn part havin...	02/24/2004
6311533	Method and apparatus for forming features in cans A method and apparatus for mechanically reshaping and/or forming textured features in the side wall of metal can bodies in which a can body is mounted on a profiled mandrel and rolled along a second mandrel or rail, which is also profiled. The tools are m...	11/06/2001
6244089	Embossing device for embossing the edge of round blanks A device for embossing the edge of round blanks, in particular coins, has a forming wheel which is provided with roll-forming segments. The forming wheel has associated abutment elements which may likewise be mounted on forming wheels. A positioning devic...	06/12/2001
6145361	Apparatus and method for production of balls by a rolling operation A process and apparatus for producing metal balls from a cylindrical strand material, with two rolling jaws which are displaceable relative to one another and of which each forms a shaping groove which extends in a direction of displacement, wherein the j...	11/14/2000
5491995	Apparatus for high speed production of shells for beverage containers A reciprocating mechanical press has two laterally spaced rows of tooling components or modules for producing corresponding rows of sheet metal container shells with each stroke of the press. The shells are ejected laterally outwardly from both s ides of ...	02/20/1996
5261261	Method and apparatus for forming a fluted can body A method and apparatus are described for forming a plurality of axially extending externally concave complete flutes defining a fluted profile in a cylindrical can body 1. The apparatus comprises a correspondingly profiled mandrel 11 of maximum diameter l...	11/16/1993
5150594	Machine for beading cylindrical cans or can bodies A carousel type head revolving about a vertical axis and skirted by a fixed reaction sector is equipped with work stations, each comprising a system of brackets to support the cylindrical tin can and a mandrel consisting in a shaft with an interchangeable...	09/29/1992
5031305	Apparatus for manufacturing electrical pins Apparatus for making electrical pins with frusto-conical end portions, comprises a wire feed station for the supply of a length of metal wire to a wire severing station at which a wire severing wheel severs the wire into pin blanks, in cooperation with a ...	07/16/1991
4821547	Wheel-driving straightener for straightening longitudinal cylindrical member A straightener for straightening longitudinal cylindrical bars includes: a machine body, a driving wheel unit having plural driving wheels rotatably mounted on one side of the machine body, an idle plate assembly having plural idle plates retained on the ...	04/18/1989
4817408	Method and machine for fabricating rotation bodies by plastic deformation A process and machine for fabricating a rotation body having different diameters along the length thereof is disclosed, in which a blank is rotated and worked between two pressure zones to apply thereto a local pressure exceeding the flow limit of the bla...	04/04/1989
4583386	Method to reduce weld flash The method and apparatus is disclosed to reduce the size of weld flash located at the junction of two workpieces each having a cylindrical contour and which have been butt-welded together. This method and apparatus employ roller members which positively f...	04/22/1986
4546630	Former having continuous forming-rolling assembly A press assembly by which cut metal workpieces of specified length are formed into blanks of desired shape by punches and dies is provided with a rolling mechanism disposed adjacent to and in line with the press assembly. The blanks formed by the press as...	10/15/1985
4485510	Threaded fastener having minimized length and weight and method to make it A threaded fastener has a pin with a head, a cylindrical shank, a shoulder with reducing diameter, a radius at the least diameter of the shoulder whose region is work-hardened, and a threaded end, in that order. The thread extends into near-adjacency to t...	12/04/1984
4475371	Testing and straightening machine A machine is disclosed which will test an elongated round cross-section workpiece by bending the workpiece as it is rotated to determine if a breakable area such as a welded area will break. Broken workpieces are discarded but those testing satisfactorily...	10/09/1984
4472956	Apparatus for feeding elongated objects Feeding apparatus for elongated objects having a rotary feed member, having a drive for rotating the same at a high speed, spaced apart parallel grooves formed in the outer circumference of the rotary member spaced apart radially from one another, to rece...	09/25/1984
4396043	Prestraightener for axial lead components An apparatus for prestraightening badly bent axial leads on electronic components and the like. The components are seated in notches on the periphery of a carrier disk assembly with the bent leads extending to each side of the assembly. The assembly is ro...	08/02/1983
4393676	Process for producing connecting member shanks, such as hinges for window and door frames, formed of cylindrical sections of different diameter, with continuous even screw thread, that is with constant pitch A process of producing a threaded shank, particularly for hinges, characterized by comprising in a succession the following steps of: cutting from a continuous wire a stock or cylindrical starting piece substantially having the same volume as the self-thr...	07/19/1983
4369644	High speed two travels thread rolling machine Disclosed herein is a new mechanism for making screws. It consists of two stationary segmented dies and an intermediate rotary die and by means of rotation, the rotary die threads working pieces which become screws. It includes a pneumatic feeding holder ...	01/25/1983
4246770	Apparatus for operating on hollow workpieces In a rotary turret-type machine, in which operations are performed on successive can body cylinders (8) or the like by a mandrel (159) inside the workpiece co-operating with a beading rail (176), each workpiece is guided smoothly into a cradle (151) which...	01/27/1981
4050275	Method and apparatus for aligning a valve head A method and apparatus for aligning the head of an engine valve in relation to the valve stem. A pair of die members is provided, the first die member being fixed relative to the frame of the apparatus and the second die member being cylindrical and rotat...	09/27/1977
4037447	Planetary straightening machine A planetary production workpiece processing machine having a rotatable annular drum with circumferentially extending planetary workpiece engaging tooling and opposed fixed reaction tooling providing a progressively variable relative radial tooling spacing...	07/26/1977
4014197	Ball rounding apparatus Ball rounding apparatus includes a rotatable inner rolling die and a stationary outer die. Forged steel balls travel through an arcuate path between the dies for final rounding. The stationary outer die is made up from a plurality of segments known as die...	03/29/1977
3930392	Straightening machine A machine is provided to straighten both the stem and the head of flanged stem workpieces such as poppet valves by rolling the stem of the workpiece between a rotary die and an arcuate stationary die. The flange of the workpiece being larger than the stem...	01/06/1976

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Class 72/92 - Non-rotating concave surface