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| Number | Title | Issue Date |
| 7347074 | Drawbench of a wire A drawbench (11, 111) of a wire (13), unwinding from a reel (14) and pulled step by step by an utilizing machine (15) of drawn wire, said drawbench (11, 111) having an unusually high productivity and comprising a drawing die (17... | 03/25/2008 |
| 6932876 | Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces Metallic workpieces of diverse shapes having work surfaces which are deformed at the surface and adjacent sub-surface layers by surface impact from ultrasonic transducers employing freely axially moving impacting elements propelled and energized by a transducer osci... | 08/23/2005 |
| 6647755 | Method for manufacturing small diameter medical devices An apparatus and method for manufacturing small diameter ultrasonic probes capable of vibrating in a transverse mode that can be used in ultrasonic tissue ablation. The apparatus includes a die, a style puller which is used to engage a functional end of t... | 11/18/2003 |
| 6634201 | Method and apparatus for drawing elongated stock continuously A method and apparatus for continuously drawing an elongated stock permit plural types of drawings within a narrower area, by a series of automated steps and permit easy adjustment of the distance between a front end position of a plug and an outlet posit... | 10/21/2003 |
| 5809823 | Method and apparatus for feeding a tubular workpiece into a drawing unit A method and apparatus for continuously feeding a generally tubular workpiece into a drawing unit of a continuous drawing machine without disadvantageously reducing the processing speed of the drawing machine. A workpiece having a reduced outer diameter d... | 09/22/1998 |
| 5724847 | Integrated wire feed and draw apparatus Apparatus for feeding and optionally drawing wire to a forging machine or the like. The apparatus is a compact unit that conserves floor space and offers manufacturing economies by permitting the use of common components whether or not the optional drawin... | 03/10/1998 |
| 5315854 | Tube tapering apparatus having a variable orifice die An apparatus for tapering a tube having a frame, a tube receiving end connected to the frame, a variable-orifice die arranged so as to be movable relative to the frames, and an axial tension cylinder connected to the tube receiving end so as to apply tens... | 05/31/1994 |
| 5156036 | Method and apparatus for drawing open-sided channel members Method and apparatus for minimizing or eliminating die breakage when performing a drawing operation on an open-sided channel member. A drawing die has an insert portion that includes a discrete element mounted for transverse movement with respect to the d... | 10/20/1992 |
| 5136872 | Process for the preparation of tubular ingot moulds intended for installations for the continuous casting of steel The process serves for the preparation of tubular copper or copper alloy chills or ingot moulds for use in continuous steel casting system, including a first stage comprising the formation of an inclined shoulder on one end of a tubular blank having a rec... | 08/11/1992 |
| 5018378 | Mold making Molds for continuous casting machines are made by providing a plurality of different tubular blanks of copper or copper based alloys; selecting a particular blank and feeding same to a first working station in which the blank is provided with a thrust mou... | 05/28/1991 |
| 4929168 | Apparatus for producing a tubular object of polyethelene terephthalate or other thermoplastic material from a tubular blank of amorphous material An object is produced from a tubular blank (10,15,17) of thermoplastic material of the type polyester or polyamide, preferably of polyethylene terephthalate by reducing the thickness of amorphous material in one or several areas of the blank by means of o... | 05/29/1990 |
| 4787227 | Feed-through element for a vacuum apparatus The invention relates to a feed-through element for application in a vacuum apparatus for the continuous feeding through of material with wire character to be treated at least made up of a casing and a sealing element set up therein that is in contact wit... | 11/29/1988 |
| 4726211 | Method of cold drawing seamless metal tubes each having an upset portion on each end A method of cold drawing seamless metal tubes each having an upset portion on each end. A draw bench used for carrying out the method of this invention comprises a die control device, a plug control device including a plug having large and small diameter ... | 02/23/1988 |
| 4722213 | Method and apparatus for the production of bent tubes A bent tube is formed by passing a straight tube through a diameter-reducing die such that the central axis of the die forms an acute angle with the direction by which the tube is pulled through the die. The acute angle can be kept constant in order to pr... | 02/02/1988 |
| 4606212 | Device for cold drawing seamless metal tubes having upset portions on both ends A draw bench for cold drawing seamless middle tubes having upset portions on both ends. The draw bench includes a die control device, a plug control device including a plug having large and small diameter bearing portions and a draw unit. The die control ... | 08/19/1986 |
| 4578972 | Apparatus for drawing wire A wire drawing apparatus includes a carriage movable along an elongated frame. A chuck is mounted on the frame for holding one end of a wire, and a drawing die is mounted on the carriage for passing the wire therethrough. An actuating device is connected ... | 04/01/1986 |
| 4292826 | Wire drawing apparatus employing macrosonic techniques A method and apparatus are disclosed for the drawing of wire-like elements, such as, wires, rods, tubes, and the like. The method employs the use of macrosonics for deformation of the wire. The use of hydrodynamic lubrication together with the macrosonic ... | 10/06/1981 |
| 4291565 | Wire drawing device A programmable and self synchronizing wire drawing device includes a stationary sleeve member having a bore. A work cylinder having an end cap piston at each end is axially reciprocable in the bore. The piston diameters equal the diameter of the bore and ... | 09/29/1981 |
| 4224818 | Method and apparatus for cold finishing of metals An apparatus and method of cold finishing of metals wherein a metal workpiece having a repeating cross section is advanced between a plurality of pairs of rollers and is driven through a die or cutting tool. The apparatus includes entry vee guides, a gimb... | 09/30/1980 |
| 4126031 | Apparatus for producing metal bands An apparatus has a die with a U-shaped slit for wire passage. The die is connected to an acoustic concentrator of ultrasonic oscillations. The central portion of the slit is parallel to the end face of the concentrator. The wall of the slit central portio... | 11/21/1978 |
| 4079616 | Draw bench for producing cylindrical tubular items by drawing A method of producing cylindrical tubular items by drawing and a draw bench relate to methods and devices for plastic working of materials in a cold state. In the course of manufacturing cylindrical tubular items by drawing, said items are subjected to de... | 03/21/1978 |
| 4072034 | Method and apparatus for forming material by forcing through a die orifice Method and apparatus for deforming the section of material by forcing it, e.g. punching or drawing it, through a die. The die, die holder and workpiece are vibrated in tune, e.g. acoustically, so that points on the walls of the die orifice oscillate in a ... | 02/07/1978 |
| 4020668 | Draw press A draw press comprises a die-stock coupled to a slide movable perpendicularly to the axis of the press between two operational positions. In a first position, the die-stock is placed on the axis of the press, and in a second position the die-stock is spac... | 05/03/1977 |
| 3961515 | Alternate support for a drawing die made of hard metal or diamond Alternate support for a drawing die made of hard metal, in which the drawing die is held with a hollow clamping ring which clamps the drawing die and the support, the drawing die being supported by a shoulder in a bore provided in the support. The drawing... | 06/08/1976 |
| 3950978 | Stretch-forming of long tubes Tubular blanks are stretch-formed by moving a mandrel into such a blank while holding a die which receives the blank and until mandrel and die are radially aligned. Subsequently, mandrel and die are moved axially to complete the drawing.... | 04/20/1976 |
