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7891225 |
Bending machine
A bending machine for bending elongated workpieces supplied from a magazine is disclosed. The bending machine comprises a base support; two bending robots arranged on a common guideway centrally...
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7878038 |
System and process for production of three-dimensional products from wire
A process of production of three-dimensional products from wire (1) or other suitable material, which process may be implemented in a system (8) that may include an advancement mechanism (9), a...
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7765843 |
Flexible rod manufacturing apparatus and method for a spinal fixation and the flexible rod manufactured through the same
The present invention relates to a rod capable of securely connecting pedicle screws in a pedicle screw system for correcting a damaged or transformed spine and a method and an apparatus for...
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7477965 |
Twisting wire actuator
A twisted wire actuator, whereby the shortening of the length of a wire or a bundle of wires, as it is twisted, is used to control the motion of an actuated element, achieving sub-micron motion...
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7434437 |
Method of making a metallic thin wire for a medical tool
In a method of making a metallic thin wire 1, one single metallic thin wire 2 is prepared to have a predetermined length with a middle portion of the one single metallic thin wire 2 as a fixed...
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7111483 |
Method and apparatus for fabricating helically shaped ribbons of material
Apparatus and methods are utilized to form turbulators. The apparatus includes a first mechanism for accepting a ribbon of material along an axis, a second mechanism for rotating an end of the...
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7069757 |
Twisting apparatus for ultrafine rectangular bar
The present invention relates to a twisting apparatus for an ultrafine rectangular bar, comprising: a chuck; chuck driving means; at least two vise clamps each of the vise clamps having a pressing...
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6959572 |
Fixture for holding metals parts for bending or twist correction
A fixture for supporting a workpiece such as a cast turbine blade allows bending and/or twist correction of the workpiece with the movable ram of a press. The fixture includes a base and a pair of...
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6857303 |
Machine for bending and twisting flat metal wire
A machine for bending and twisting flat metal wire for producing a motor vehicle wiper arm. The machine includes device for feeding and maintaining the wire, and at least a mechanism capable of...
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6751998 |
Method for forming a three dimensional object
In a method for forming a three-dimensional object and in particular to a method for forming a three-dimensional beam, it is desirable to form three-dimensional beams (5) having complex forms by...
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6397653 |
Folded metal bellows
A method of making a folded metal bellows wherein an n-sided mandrel is positioned within a metal tube at an initial position. A convolution is formed by: axially moving and turning the mandrel...
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6378347 |
Machine for manufacturing twisted and offset electrical conductors
In an exemplary embodiment of the invention, a machine for shaping a bus bar comprises a first retaining device, a second retaining device, a twisting device and an offset mechanism. The first...
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6318142 |
Spacer device for a basket forming apparatus
A spacer device for use with a basket forming apparatus, the spacer device comprises a plurality of angularly spaced, radially extending arms (3, 4, 5, 6) corresponding in number to the number of...
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6287210 |
Process of forming a twisted, spirally grooved member and the member formed thereby
A novel process of forming a member, process of forming an extruded and axially twisted member, such as a drill, a fastener, a self-drilling/tapping fastener, and the member formed by the process...
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6260398 |
Forming of hollow extrusions with double plane bends and twists
A method and apparatus for forming hollow extrusions. Specifically, a method and apparatus for imparting one or more bends and/or twists in a hollow extrusion under stretch. The apparatus may...
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6220072 |
Forming press of crankshafts
The present invention relates to a forming press of crankshafts which is safe, has a slide of large strength and high forming precision, and is capable of high-speed cyclic operation. A forming...
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6189359 |
Twisting machine for polygonal cross-section bars
A twisting machine for polygonal cross-section bars having an independent jaw chuck fitted on a mandrel and a counteracting support slidable on a prismatic guide, which is firmly connected to the...
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6009738 |
Apparatus for forming metal
The apparatus allows a metal blank which, in one embodiment, comprises a plurality of bars held in parallel relationship, to be formed into a twisted and bowed shaped object (4) which is referred...
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5771726 |
Apparatus and method for twisting hollow rods
Apparatus and methods for uniformly twisting hollow, open-seam rods with preferably rectangular cross-sections for use as decorative curtain rods are disclosed. The twist extends throughout...
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5676013 |
Spiral component for a baluster and method and machine for making same
Discrete bars are formed into a spiral component for a baluster by disposing a plurality of the bars side by side. A rod is butt welded to one of the two ends of the plurality of bars. Then the...
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5410808 |
Method of making a double wall twist tube
A double wall twist tube is formed from at least two tubular blanks with a smaller tubular blank forming the inner wall and a larger tubular blank forming the outer wall. The smaller tubular blank...
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5295381 |
Twist-forming press for crank shaft or the like
A twist-forming process and a coining process for a crank shaft are carried out by using one twist-forming press including a twist forming section and a coining section, and a stopper height...
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5170654 |
Method for wire bending in three dimensions
Method, applicable to two-dimensional wire bending machines for extension of their operation in bending to form three-dimensional wire frames, which is characterised by the application of a...
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5063662 |
Method of forming a hollow blade
An untwisted hollow blade with internal reinforcing ribs is formed by diffusion bonding two halves. A predominate portion of the blade twist is accomplished by gravity creep deforming against a...
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4972696 |
Forming elongate structural components
A system for forming components to have a predetermined contour includes a manipulator having four manipulating heads 44, 52, 56, 58 which engage longitudinally spaced portions of the component....
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4878369 |
Apparatus for forming elongate structural components
A system for forming components to have a predetermined contour includes a manipulator having four manipulating heads 44, 52, 56, 58 which engage longitudinally spaced portions of the component....
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4827753 |
Extrusion former with three-way powered movement
An elongate member former is characterized by three-way powered forming movement and is composed of a main frame and a moveable die table mounted on the main frame and adapted to carry a die for...
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4766751 |
Apparatus for continuously producing tube having helical grooves in its inner surface
An apparatus for continuously producing a tube having helical grooves in its surface comprises a first drum, a flier having an axis intersecting the axis of the first drum at right angles therewith...
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4656860 |
Dental apparatus for bending and twisting wire pieces
In dental treatment for fitting a wire piece onto the teeth and/or jaw, a patient is subjected to repeated bending and in some cases twisting of the wire and some arrangement for completing the...
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4627254 |
Cutting device for a multi-dimensional bending apparatus
A multi-dimensional bending apparatus is disclosed, wherein the entire length of the product is divided into a plurality of imaginary segments which are identified by detecting the continuously...
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4624121 |
Method of, and apparatus for producing multi-dimensionally bent elongate articles
A multi-dimensional bending method and apparatus are disclosed, wherein the entire length of the product is divided into a plurality of imaginary segments which are identified by detecting the...
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4604884 |
Twisting apparatus of root canal reamer or file material and method for manufacturing root canal reamer or file
An apparatus for the manufacture of a root canal reamer and a method of manufacture of the same. An apparatus for twisting reamer material has a triangular or rectangular cross-sectional opening, a...
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4596064 |
Method for manufacturing a screw flight
A method and apparatus for manufacturing the screw flight section of a screw conveyor is disclosed. The apparatus includes two horizontal arms which extend from a vertical support and at the...
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4591788 |
Magnetic field sensing device
A magnetic field sensing device for sensing low levels of magnetic intensity is composed of a ribbon-shaped strip of amorphous magnetic material having at least one twist along the length thereof...
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4580430 |
Torsional molding apparatus for crank shaft
A torsional molding apparatus for arranging each crank pin of a crank shaft at a predetermined angular position wherein a plurality of crank pins are arranged on the same plane passing through an...
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4459164 |
Method and apparatus for compensating for axial deformation of screw shafts due to heat treatment
A method and apparatus for compensating for axial deformation of screw shafts due to heat treatment, wherein in the process of hardening of a screw shaft, the screw shaft is twisted to produce...
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4437329 |
Method of manufacturing twisted tubes
A method of manufacturing a spiral tube including the steps of positioning an elongated mandrel within a tube, grasping the ends of the tube, forming a point of reduced resistance to torsional...
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4373241 |
Method of making propeller blade
The method of making a propeller and fan blading comprised of an extruded airfoil having a rib retained at the root for mounting and with a portion thereof removed by flattening the back of the...
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4369643 |
Closure with smooth edge
A metal cap or closure having a smooth, rounded edge. The smooth, rounded edge is formed by contacting the rough edge of the cap or closure with a plurality of moving metal spheres. The apparatus...
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4363233 |
Method and apparatus for cold forming stabilizer blade means from elongated members
An apparatus for cold forming stabilizer blades from elongated members by holding an elongated member while being bent or twisted to form a stabilizer blade. A mandrel is provided for receiving...
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4317353 |
Tube twisting apparatus
An automated apparatus for forming helical corrugations in a cylindrical tube and comprising a tail stock movable in alternate forward and reverse directions, a head stock disposed in spaced...
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4203312 |
Corrugated tubing with variable depth corrugations and method of making the same
Helically corrugated tubing with corrugations of variable depth is manufactured in a twisting machine by rotating one end of a deformable tube relative to the opposite end and simultaneously...
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4188813 |
Method and machine for the manufacture of long concrete drills provided with helical splines over part of their length
A part such as a long concrete drill provided initially with rectilinear splines is heated in successive zones while producing a controlled increase in the distance between the two extremities. The...
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4171634 |
Method of making corrugated tubing with graduated pitch
Helically corrugated tubing with corrugations that have a gradually changing pitch from one end to the other is manufactured in a twisting machine by rotating one end of a deformable tube about the...
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4059004 |
Method of forming helically corrugated tubing
Helical corrugations are formed in a tube having a cylindrical wall by generating pressure radially of the unsupported tube wall at localized areas distributed around the tube circumference. While...
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4026137 |
Twisting and bending machine for elongated metallic strips
A machine for twisting and bending of elongated metallic strips which takes the form of a base upon which is mounted an elongated member of polygonal cross-section. A first holder is fixed to one...
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4019356 |
Apparatus for the cold working of bar stock
A machine bed supports stationary and rotary fixing means that are aligned for receiving bar stock therebetween. Electrical or electromechanical control means are provided for selecting and...
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3884065 |
Straightening elongated articles
This specification discloses a method and apparatus for straightening a bent elongated article of substantially constant cross-section in which the article is constrained to take up a straight...
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3796083 |
METAL STRAP TWISTING MACHINE
A metal strap twisting machine comprising first and second longitudinally aligned carrier members, a transversely extending wheel intermediate said carrier members, a strap holder detachably...
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3769836 |
APPARATUS FOR STRAIGHTENING, UNTWISTING AND TESTING TUBULAR ELEMENTS
An improved apparatus for straightening, untwisting, testing and strengthening sucker rods and tubular elements such as oil well drill pipe, tubing and the like, comprising an extendable frame...
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