Class 140/89 - Spring setting

Subclass of Class 140 - Wireworking
Definition: Setting coil springs or causing them to conform to predetermined
No. of patents: 30
Last issue date: 12/06/2011

Number	Title	Issue Date
8069881	Spring and spring processing method A method for residual stress enhancement for a coil spring includes radially expanding at least a select axial portion of the coil spring to remove residual tensile stress from the spring inner diameter and induce residual compressive stress in the spring inner diam...	12/06/2011
7275318	Fixture for installing or removing coil springs A spring fixture (1) is provided for quickly installing or uninstalling a coil spring (36) in or from an electrical connector (3). The fixture includes an operation member (11) having a generally cylindrical handle (12) at an end t...	10/02/2007
7267142	Method for increasing the torque of a pre-tensioned spring that is wound around a rotating body comprising a longitudinal axis The present invention relates to a method wherein a first end and a second end of a pre-tensioned spring are positioned against a first and second stop. A rotating body is first rotated about its longitudinal axis such that the first end engages once in a cam wheel ...	09/11/2007
7201940	Method and apparatus for thermal spray processing of medical devices The invention relates to devices for the treatment of heart disease and particularly to endo-arterial prostheses, which are commonly called stents. More particularly, the invention relates to methods of manufacturing and coating stents utilizing thermal spray proces...	04/10/2007
7143625	Stent crimper An apparatus for reducing the size of a medical device, the apparatus including at least one independently operable discrete section which can reduce the diameter of the medical device, the independently operable discrete section including a plurality of coupled mov...	12/05/2006
7135039	Intraluminar perforated radially expandable drug delivery prosthesis and a method for the production thereof The radially expandable prosthesis for implantation in a lumen comprises a tubular wall produced from sheet metal and showing cuts enabling the prosthesis to expand. By using water guided laser cutting technology to make these cuts and/or specific electrochemical po...	11/14/2006
7093622	Apparatus for deforming resilient contact structures on semiconductor components A method for testing and burning-in semiconductor components such as semiconductor dice on a semiconductor wafer, is provided. The method includes the step of providing all of the components on the wafer with resilient contact structures, such as metal pins having i...	08/22/2006
7021114	Stent crimper An apparatus for applying an inward force to a medical device may include at least two independently operable sections. Each section may include a plurality of movable blades arranged to form an aperture or chamber whose size may be varied. Each blade may be pivotal...	04/04/2006
6915560	Apparatus for contracting, loading or crimping self-expanding and balloon expandable stent devices An apparatus for manipulating a medical device is formed of at least three coupled movable blades which are disposed about a reference circle to form an aperture whose size may be varied. The aperture capable of being sized to contain a medical device. Each blade is...	07/12/2005
6913822	Cable erection technique and cable erection coil The present invention concerns a cable erection technique using a plastically deformable coil comprising a metal wire formed in a spiral shape and synthetic resin coated on a surface of the metal wire, wherein said coil is inserted outside around a tensile line draw...	07/05/2005
6779564	Method and apparatus for setting a helical compression spring The present invention is directed to method for setting a formed helical compression spring. At the out set, parameters are measured to determine a reaction force axis of a formed helical compression spring. Next, A target reaction force axis of the spring is compar...	08/24/2004
6305436	Medical stents for body lumens exhibiting peristaltic motion Methods for forming, shaping and heat treating stents for reinforcement of the lumen of peristaltic organs. The stent is formed by knitting preferably a nitinol wire into a pattern of overlapping loops selected such that from a relaxed state each row of l...	10/23/2001
5926935	Method of and apparatus for incorporating torsion spring A torsion spring having a central coiled portion and a pair of resilient arms projecting from the coiled portion in different directions is incorporated in a workpiece so that the coiled portion is fitted on a support pin on the workpiece and the arms are...	07/27/1999
5183085	Method and apparatus for compressing a stent prior to insertion A method is disclosed for compressing a helically coiled stent by folding coils about a first plane and a second plane, each plane containing the longitudinal axis of the stent and the first plane being normal to the second plane, and maintaining separati...	02/02/1993
5146956	Programmable controlled winder Various structures exist which require an element to be turned in a certain direction. The turning is accomplished by a programmable controlled winder which includes a motor driven tool in association with a computer for automatically stopping the rotatio...	09/15/1992
4986103	Apparatus for coiling springs with tucked ends A coiling machine employs an apparatus wherein a coil spring having tucked ends may be formed at the coil forming station. After the helical coil is formed, a slider member engages the next to the last formed loop of the coil and forces the loop over the ...	01/22/1991
4886249	Spring bands for incorporation in spring units A known kind of spring unit, for use in mattresses, seats and the like, is made as an assembly of spring bands which are disposed side by side and a plurality of helical wires (5,6) which extend transversely to the bands and are linked to them. Each sprin...	12/12/1989
4876781	Method of making a garter-type axially resilient coiled spring A garter-type axially resilient coil spring includes a plurality of coils canted along a centerline thereof with each coil having a trailing portion and leading portion. The disposition of the trailing portion is defined by a back angle between the traili...	10/31/1989
4836514	Preloaded spring, method and apparatus for forming same A closely wound, coil type tension spring of one hand having an initial tension exceeding that obtainable by prior spring forming techniques is formed by reverse winding an open-wound compression spring of the opposite hand. Alternative methods and appara...	06/06/1989
4827602	Electric heater assembly fixture and method of use A U-shaped coil is place on the fixture of the present invention and is folded such that each arm of the U is made into a U. The folded coil is then placed upon the insulators of a tree or rack through further movement of the fixture....	05/09/1989
4807488	Adjustable coil retainer and spreader and method of use A coiled resistance element is connected to an insulator block by sequentially locating and holding the coil in place; camming the coil such that two adjacent coils are forced together and the coils on either side are forced away so as to form two gaps or...	02/28/1989
4753379	Method and apparatus for regulating the length of workpieces An apparatus for regulating the length of divisional spacings of a metal band comprises at least two workpiece conveying roller pairs spaced from one another in the direction of the workpiece length and arranged for holding and advancing the workpieces in...	06/28/1988
4719683	Preloaded spring, method and apparatus for forming same A closely wound, coil type tension spring of one hand having an initial tension exceeding that obtainable by prior spring forming techniques is formed by reverse winding an open-wound compression spring of the opposite hand. Alternative methods and appara...	01/19/1988
4593726	Coil spring assembly machine A machine for connecting rows of coil springs together into a coil spring assembly. The machine initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto a support platen. While transpo...	06/10/1986
4548241	Coil spring assembly machine A machine for connecting successive rows of coil springs together into a coil spring assembly. The machine, in preferred form, initially picks up a row of coil springs by inserting a pick up finger into the barrel of each coil and moving the springs onto ...	10/22/1985
4544002	Automatic spring compressing machine A machine for compressing compression coil springs to length. A crank-operated plunger reciprocates within a chamber receiving springs to be compressed, and from a magazine springs are automatically fed into the compression chamber and released therefrom....	10/01/1985
4453392	Method of hardening shaped surfaces by plastic deformation A method of hardening by plastic deformation surfaces of articles shaped as continuous helical coils and having essentially round cross-section by means of deforming elements wherein said deforming elements are arranged at the opposite sides of said artic...	06/12/1984
4288901	Method of manufacturing and calibrating a displacement measuring sensor A tensioned helical wire for use as a displacement sensor. The sensor made of high strength piano wire is attached at its ends to two anchors which in turn are attached to or are a part of the object or objects to be tested. In the preferred embodiment th...	09/15/1981
3988092	Apparatus for making retractile cords A plurality of groups of mandrels are arranged for movement successively through a plurality of workstations with each group being worked on at a station while other groups are being worked on simultaneously at other stations to produce continuously autom...	10/26/1976
3940228	Telephone cord mandrel end retainer A molded plastic fixture holds an end of a telephone wire cord wound on a mandrel to retain the cord in position during subsequent heat processing. The mandrel fits into a bore in the fixture and an angled arm extending from one side holds a band spacer a...	02/24/1976

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Class 140/89 - Spring setting