Class 72/198 - With cooperating allochiral tool-face

Subclass of Class 72 - Metal deforming
Definition: Subject matter whose tool-face* coacts with another
No. of patents: 31
Last issue date: 03/18/2008

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Number	Title	Issue Date
7343769	Corrugation forming method A corrugation forming apparatus includes, as forming members, a rack tool assembled to a slide table and a pinion tool which rotates with rotation of a shaft. The apparatus also includes, as a displacement synchronization mechanism, a feed rack integrally assembled ...	03/18/2008
7334446	Method for producing a striplike pre-material made of metal, especially a pre-material which has been profiled into regularly reoccurring sections, and device therefor This invention describes both a method and apparatus to practice a method which produces a strip-like pre-material from metal using rollers which have a roll gap in which the metal strip is discontinuously rolled in successively steps between the same two rollers wi...	02/26/2008
7254979	Device for ejection of moulded pieces from a moulding tool The invention relates to a so-called spring cushion (5), for the ejection of moulded pieces (4) from a moulding tool (3), with a plunger (6), moving in a guide tube (9) within the moulding tool and loaded in the ejection direction ...	08/14/2007
7047782	Method for roll forming, capable of preventing wrinkles and device therefor A die roll 3 comprises a core part 3a which is formed of an elastic material and faces a punch part 2a of a punch roll 2. The core part 3a presses a bottom portion 4b of a drawn portion 4	05/23/2006
6055839	Pressing of coins, tokens, and like items A machine and method for producing pressed items from coins, tokens, and like items. The machine includes multiple operating stations from where multiple operators can activate the machine; a press adapted to press coins, tokens, and like items delivered ...	05/02/2000
5962040	Apparatus for making a zipper for a reclosable thermoplastic bag Disclosed is a zipper for a reclosable thermoplastic bag having opposing rib and groove profiles wherein at least one of the opposing zipper profiles has an longitudinally extending part interlockable and substantially free of interdigitation with the opp...	10/05/1999
5918497	Metalworking method wherein formed configuration locates blank A metalworking iterative method of cold-working blanks into configurations having contiguously repeated predetermined forms wherein an advance-worked form functions to locate a succeeding form. A first portion of a blank is squeezed into a predetermined f...	07/06/1999
5875669	Rolling method and rolling facility for manufacturing steel bars for concrete reinforcement The present invention provides a rolling method and apparatus for manufacturing concrete-reinforcing steel bars, wherein the invention provides for obtaining various concrete-reinforcing steel bars satisfying the required specifications for knot height wh...	03/02/1999
5809819	Reinforcement member for the reinforcement of concrete structures and method and device for manufacturing this reinforcement member An apparatus and method for manufacturing a reinforcement member wherein the reinforcement member includes a reelable steel tape being incorporated into concrete. The faces of the steel tape each include substantially rectalinear ribs arranged in at least...	09/22/1998
5546782	Machine to sharpen bars to a point Machine to sharpen bars to a point, especially bars to be drawn, which comprises at least one sharpening assembly and at least one assembly for displacement of the bar in relation to the sharpening assembly, the sharpening assembly (31) consisting of two ...	08/20/1996
5478228	Apparatus for making a zipper for a reclosable thermoplastic bag Disclosed is a zipper for a reclosable thermoplastic bag having opposing rib and groove profiles wherein at least one of the opposing zipper profiles has an longitudinally extending part interlockable and substantially free of interdigitation with the opp...	12/26/1995
5354581	Surface treatment of sheet- or plate-like blanks One side of a sheet- or plate-like bank of metallic, plastic and/or other material is provided with at least one set of parallel grooves prior to being provided with an array of pyramidal and/or conical depressions. The grooves can be formed by brushes or...	10/11/1994
5115660	Method for making band plates deformed in section A method for making sectionally deformed band plate feeds by cold-rolling metal band plate feeds between work rolls wherein at least one of the work rolls has a barrel provided with a circumferential groove, a plurality of metal band plate feeds with subs...	05/26/1992
5088209	Metrological scale An optical metrological scale produced by a rolling method, to give a profiled upper scale surface which is imparted by an embossing roller. To prevent uneven strains, which could affect the pitch of the scale, the support roller has a similar embossing p...	02/18/1992
5070718	Method and apparatus for the production of metal products A method of producing a profiled plate in a metal alloy by rolling the plate through a four high mill, the work rolls having pockets to accommodate the thicker portion of the plate, the work rolls rolling the plate and discharging it on the side opposite ...	12/10/1991
5032097	Apparatus for assembling an electron emissive part of a cathode There is disclosed an apparatus for assembling the electron-emissive part of cathode comprising a porous base metal penetrated with an electron-emissive material and a thin metal plate for covering the base metal. The apparatus comprises a pair of cylindr...	07/16/1991
4995252	Method and apparatus for internally enhancing heat exchanger tubing A method and machine for forming internal enhancement ribs in heat exchanger pipe or tubing comprises a mandrel which is supported within the tubing and a plurality of opposed rotary dies which have their axes perpendicular to the tube axis so that they r...	02/26/1991
4955219	Rock bolt A method of making a rock bolt (1) with a thread on a section thereof comprising the steps of; providing a metal bar of circular or near circular cross-section having a diameter which is substantially equal to the pitch diameter of the thread to be provid...	09/11/1990
4953379	Hot-rolled steel bar with helically extending ribs, method of and apparatus for producing the steel bar In the production of a hot-rolled steel bar, such as a concrete reinforcing bar, a continuous thread is formed on the bar. The thread is arranged so that an anchoring or connecting member with a female thread can be screwed onto the male thread formed on ...	09/04/1990
4854147	Wire pinch mark applicator Apparatus for applying a pinch mark to a wire (10) at a selected target position along the length of the wire. The apparatus operates in response to a first signal (MARK) indicating that the target position is at a known upstream location. The apparatus i...	08/08/1989
4715205	Planetary-type rolling mill for non-flat products In this rolling mill, a rolling action is brought about by work rolls acting as opposing pairs arranged equiangularly at the periphery of rotating rolling units distributed symmetrically about the material to be rolled. The axes (10') of the work rolls (1...	12/29/1987
4596129	Apparatus for forming fins for heat exchangers An apparatus, for forming fins for heat exchangers, comprising a pair of rolls which are provided, on the outer peripheral surfaces thereof, with grooves of a pattern corresponding to the shape of the fins to be formed therebetween and which form them by ...	06/24/1986
4524598	Method of rolling a simulated hole in sheet metal without drilling or punching A method of fabricating sheet metal is described wherein a simulated opening for a threaded fastener is formed in sheet metal solely by roll forming a U-shaped loop segment in the sheet metal and then creating a simulated opening therein by crimping the s...	06/25/1985
4445354	Procedure and equipment for the manufacture of pipes with external and internal diameters varying in stages The present invention relates to a cold pilger rolling mill and a method and means for manufacturing tubes with externally and/or internally thickened portions by reducing the tubes over a mandrel by means of grooved rolls which are mounted in a reciproca...	05/01/1984
4368632	Apparatus for reducing the cross sectional area of a wire Apparatus for reducing the cross sectional area of a wire comprises stabilizing means arranged to receive the wire and to limit extrusion thereof in a direction transverse to its length and movable projecting means for engaging the wire while restrained b...	01/18/1983
4318290	Swaging machine for elongated bodies of metal, e.g. end pieces for wires in boat-rigs A swaging machine for tight-swaging of end pieces (42) on a wire (44), cable, metal bar or metal filament having two with rolling grooves provided rolls (34,36) being freely rotatably mounted on two shaft journals secured to a base support. The machine is...	03/09/1982
4159633	Metallic rod product, and method for producing same Improved metallic rod product which substantially reduces die wear in wire drawing operations, and which provides other advantages during manufacturing. The exterior surface of the rod product is intentionally provided with a predetermined rough texture h...	07/03/1979
4087898	Metallic rod product, and method for producing same Improved metallic rod product which substantially reduces die wear in wire drawing operations, and which provides other advantages during manufacturing. The exterior surface of the rod product is intentionally provided with a predetermined rough texture h...	05/09/1978
4041749	Method of producing sheet or plate from rolling stock In a method and apparatus for producing sheets or plates by hot rolling slabs in a number of passes, the slabs are alternately deformed more strongly and less strongly between a pair of rolls at least in one pass, and when the slabs are less strongly defo...	08/16/1977
4034587	Concrete reinforcement rods The invention is concerned with a reinforcing rod for concrete and a rolling tool for making the rod. The rod has several cold rolled serpentine shaped ribs distributed around its periphery and extending generally in the axial direction....	07/12/1977
3956915	Drawing and ironing container stock and manufacturing methods Continuous-strip process for improving ironing operations in the manufacture of drawn and ironed container bodies having a bottom wall and unitary sidewall. Strip surfaces are treated, in final cold reduction operations for flat rolled container stock, to...	05/18/1976

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Class 72/198 - With cooperating allochiral tool-face