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| Number | Title | Issue Date |
| 7340825 | Method of making a transformer A transformer and method of making includes first half primary and secondary windings as metallic circuits that are etched on a metallic cladding of a first liquid crystal polymer (LCP) sheet. Secondary windings are positioned in spaced relation to the primary windi... | 03/11/2008 |
| 7134305 | Wire feeder driving mechanism for spring manufacturing machine A wire feeder driving mechanism capable of driving a wire feeder of a spring manufacturing machine to perform a three-dimensional movement. The spring manufacturing machine includes a machine base and a work table. The work table has an opening and a plurality of to... | 11/14/2006 |
| 7107806 | Spring manufacturing machine In order that a moving locus of a leading end of a tool 55 provided to a tool mounting device 54 is aligned with a direction orthogonal to a center line W of a wire rod passage (not shown) of a final wire rod guide 13, a tool operating apparatus... | 09/19/2006 |
| 6332583 | Device to form spirals in a coiling machine for rolled stock Device to form spirals in a coiling machine for trolled stock located downstream of a rolling train provided with drawing rollers, wherein the coiling machine includes a reel able to rotate around an axis of rotation, including a guide element suitable to... | 12/25/2001 |
| 5860214 | Shearing machine with sickle-shaped blade A shearing machine includes a sickle shaped upper jaw interacting scissors fashion with a generally linear lower jaw. The distal ends of the sickle shape begin shearing from opposite ends of a plate-type object at about the same time, with shearing progre... | 01/19/1999 |
| 5515598 | Method for winding an inner coil of a transformer This method is for winding an inner coil of a transformer, the transformer including a ferrite core with an inner groove for receiving the winding, the ferrite core being provided with a radial inlet groove for feeding in and feeding out of the winding wi... | 05/14/1996 |
| 5174013 | Winding apparatus and method which deforms the wire during winding A winding apparatus for winding a coated wire on the drum for making a coil which is used for a stator or an alternator. A sectional shape of the wire which is introduced to the winding apparatus is circular, and the wire is deformed in order to make the ... | 12/29/1992 |
| 4996861 | Apparatus for forming an elogated tubular element into a helix The apparatus of the present invention includes an externally threaded spindle to which one end of a thin walled metal tube is detachably secured. The spindle is rotated to wind the tube into the external thread, thereby producing a helix. As the tube is ... | 03/05/1991 |
| 4881393 | Wire coiling apparatus A wire coiling apparatus having a plurality of wire feeding spools, belts driving a wire coiling arbor, variable speed motors driving the belts and arbor, a lead screw moving the spools across the arbor feeding wire to be coiled on said arbor and a progra... | 11/21/1989 |
| 4862720 | Apparatus for making wire springs This invention relates to plastic metal working. The apparatus embodying the invention, includes two parallel oppositely directed mandrels secured each by one end in a collet clamp and by the other end in a rotating sleeve, and two assemblies for winding ... | 09/05/1989 |
| 4783981 | Apparatus for forming a tube from a metal band This invention relates to a die device for forming tube from a metal band, wherein the die comprises a long die block comprising, lengthwise and passing through it, a conduit comprising an inlet orifice of larger cross section and an outlet orifice of sma... | 11/15/1988 |
| 4736606 | Device for making springs from wire A device for making springs from wire comprises two driven mandrels located arallel to each other and adapted for winding springs from wire and a carriage feeding wire onto each of these mandrels alternatively while reciprocating along the ways from one ex... | 04/12/1988 |
| 4715202 | Coil-spring winding apparatus A coil-spring winding apparatus according to the present invention comprises a guide rail extending along the axis of a mandrel, and a carriage movably supported by the guide rail. The carriage is fitted with first and second guide rollers. The second gui... | 12/29/1987 |
| 4616682 | Method of manufacturing helically wound filaments and filaments manufactured by means of this method A plurality of filaments are helically wound on a mandrel, with longitudinal portions being formed between the last turn of one and the first turn of the next filament. Winding stresses are removed from a preceding wound filament by heating it. That filam... | 10/14/1986 |
| 4523447 | Wire coiler A wire coiler comprising an elongated coil support, gripping device holding the coil support for rotation therewith, a drive connected to the gripping device for rotating the gripping device, the drive having an axis extending parallel to the direction of... | 06/18/1985 |
| 4397069 | Device and process for the manufacture of vibration-damping and shockproof mountings incorporating at least one helically arranged metal cable and mounting thereby obtained The device and related process for the manufacture of vibration-damping and shockproof mountings formed of metal cable spirals comprise a generator of low speed rotational motion; a spindle formed of at least two portions, parallel longitudinally developi... | 08/09/1983 |
| 4380919 | Coil winding machine Coil winding machine for the winding of coils without support, of bare or insulated wire, comprising a main drive shaft, onto which is keyed a set of control cams controlling the movements of: a spindle, on which the coil is formed and which is caused to rotat... | 04/26/1983 |
| 4199968 | Band making apparatus Band making apparatus comprising a mandrel on which is wound wire of U-shaped cross-section with relatively inverted portions alternating longitudinally of the axis of the mandrel having a side edge interengaged in the channel of the other, has a guide fo... | 04/29/1980 |
| 4084420 | Method and an apparatus for producing a coiled spring The invention provides a method and an apparatus for automatic production of coiled springs, wherein the spring has close windings at both ends and rough windings with relatively large pitch in the middle portion, by shifting the supplying positions of a ... | 04/18/1978 |
| 3988915 | Method and apparatus for the production of prestressed coil springs A method and apparatus for producing prestressed coil springs whereby the wire is fed about a rotating spindle and taken up or drawn in with a predetermined spacing from the front end of the coils and guided to a point ahead of the front end of the coils ... | 11/02/1976 |
