Class 72/330 - Blank detaching

Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein the cutting edges are so arranged
No. of patents: 33
Last issue date: 01/10/2012

Number	Title	Issue Date
8091401	New-type thin shredder blade having blade points without steps, blade sets and manufacturing method thereof Thin shredder blade having blade points without steps, including blade body and cutting part located on periphery of blade body and includes a blade point. The cutting part includes a primary protrusion protruding from the cutting part. The primary protrusion includ...	01/10/2012
7346975	Method of manufacturing a stator for an inner type of rotor A method of manufacturing a stator core for an inner rotor type of motor. The core back of the stator core in the motor has an arc shaped inner circumferential surface therein that is offset from the center thereof. The stator core is produced from a laminated body ...	03/25/2008
7146734	Rolling elements for rolling bearing, method of producing the same, and rolling bearing A method of producing rolling elements for a rolling bearing comprises mixing to process rounded elements made of steel balls and spherical rolling elements having outer diameter portion portion becoming a rolling contact face. The rolling contact face has curvature...	12/12/2006
7114362	Method of making metal workpiece A method for draw forming a desired contour to the outer diameter of a tubular work piece provides that the selected work piece have a wall thickness uniform throughout its length. The outer diameter of selected work piece is reduced along essentially only a part of...	10/03/2006
7076986	Process for forming a linking element for a push belt for a continuously variable transmission In a process for forming a linking element for a push belt for a continuously variable transmission, material is displaced from a central portion of the linking element during a blanking process, which central portion is substantially centrally located in the horizo...	07/18/2006
7069764	Method for manufacturing a hollow rack shaft A hollow rack shaft is manufactured through a first step, a second step and a third step. At the first step, the plate-like workpiece of substantial rectangular shape is press formed into a gutter-like shape. The first die set used at this step is provided with slan...	07/04/2006
6978532	Mower bed blade method A method of forming a durable mower bed blade is provided in which the grain of the metal is perpendicular to the longitudinal axis of the blade. The blade is formed in part by coining the blade on a hydraulic press which strengthens the cutting edge and other areas...	12/27/2005
6951124	Method for making elements of a continuously variable transmission belt Notched areas are provided on the outer periphery of a flat plate in the coining process to allow material of said plate flow more easily toward the periphery during the coining process. Use of flat plate provides a more economical way of making elements with accura...	10/04/2005
6877652	Metal tubular body and manufacturing method thereof Side hole-bearing tubular bodies made of metal and having an inside diameter of up to 2 mm are manufactured by a method which includes punching from a metal sheet a sheet blank in the developed shape of a tubular body and punching in the sheet blank a hole which cor...	04/12/2005
6553805	Double-lanced suspension A double-lanced suspension for use in progressive-die forming methods. The suspension is characterized by a rim section of lesser expanse between pairs of connecting tabs than is used in the prior double-lanced suspension....	04/29/2003
6526798	Method of blanking element for belt for continuously variable transmission The cutting edge of a die and the cutting edge of a punch are spaced more widely from each other in a range of an element which includes a neck and undercuts than in the other range of the element. The element is blanked out of a metal sheet by the die an...	03/04/2003
6233990	Method for manufacturing a formed piece of metal The present invention relates to a method for manufacturing a formed piece of aluminum or some other relatively soft metal. In accordance with the invention, a slice is cut form a rod of aluminum or some other raw-cast metal; the slice forms a blank (3), ...	05/22/2001
6041639	Method and apparatus for stretch-forming and shearing sheet metal A method and apparatus is provided for forming and shearing a sheet metal workpiece in a single operation. The method includes the steps of: (a) providing a stationary lower die half; (b) stretching the workpiece over the lower die half to stretch-form th...	03/28/2000
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
5619881	Double-scissors cutter A double scissors cutter for cutting a workpiece into substantially rectangular pieces is provided which comprises a pair of jaw members adapted to be opened and closed about a pivot shaft. Each of the jaw members includes, attached thereto, a cutting bla...	04/15/1997
5497645	U-shaped closing staple for bags and flexible tubes and apparatus for closing them In U-shaped closing staples for bags and flexible tubes, which staples are made of strip material and consist of a crosspiece (7) and two legs (4) and in which the leg ends of the staple have been bent off outwardly to constitute a connecting web (2), by ...	03/12/1996
5490317	Tapered alignment guide arrangement for self aligning part excision die members in tape automated bonding apparatus The lower ends of alignment bearing shafts of an upper die member of a tape automated bonding apparatus are modified to include tapered alignment pins, each having a tapered surface that is complementary to the tapered interior end of the bore of a respec...	02/13/1996
5458717	Method of shearing thin metal sheet A method of shearing a thin metal sheet having a thickness of approximately 0.1 mm or less so as to be separated into a product and scrap by a pair of dies. A chamfer or a round having a size of approximately from 5 to 10 times greater than the thickness ...	10/17/1995
5404741	Method and cutting tool for producing steel fibers Steel fibers which commonly are comprised of a straight center section and S-shaped end sections are commonly produced in two manufacturing steps: In a first manufacturing step straight sheet steel strips are cut from sheet steel and the resulting steel f...	04/11/1995
5375445	Apparatus for producing a shaft clutch mechanism A shaft clutch mechanism, and method and apparatus for its production are disclosed. The shaft clutch mechanism has an upper body folded into a polygonal cross section with a plurality of fingers, each finger attached to and extending from a flat section ...	12/27/1994
5284043	Method and device for separating a contoured product from sheet metal A method for cutting and separating from a piece of sheet metal a product, comprising a first step for contouring the product while leaving a small joint such as a connecting web or micro-joint which connects the product to the sheet metal, a second step ...	02/08/1994
5210936	Method and apparatus for the excise and lead form of TAB devices The excise and lead form of TAB leads bonded to an integrated circuit chip. Leads extending beyond a sidewall are clamped between a first clamp and a form anvil at a first portion spaced from the chip. The leads are also clamped between an excise/form too...	05/18/1993
5099674	Method and apparatus for the manufacture of J-shaped display hooks with balled ends A method and apparatus is disclosed for the manufacture of J-shaped display hooks with balled ends in a single manufacturing operation, without requiring separate handling of the display hook for the bending and ball-forming operations. A continuous lengt...	03/31/1992
4998430	Manufacture of rotor lamination for a dynamoelectric machine In a progressive die for punch press operations in which a strip of material is fed into the press and sequential operations are conducted on the strip including the separation of parts from the strip. The die is provided with a construction which forms a...	03/12/1991
4681237	Method for the manufacture of metal packaging cans, and a semi-product in the manufacture of such cans In the manufacture of metal packaging cans metal sheet is deep-drawn and ironed to form a seamless tube having a bottom in one-piece therewith, and the tube is cut transversely to remove excess material at the end remote from the bottom. This forms a cyli...	07/21/1987
4435973	Method of producing ring-shaped metal parts A method of producing a plurality of identical ring-shaped metal parts from a single blank in the form of solid rod without forming any hole in the blank and without cross-sectionally cutting the blank. The outer periphery of the blank corresponds to the ...	03/13/1984
4417460	Hypodermic syringe destruction device A hypodermic syringe destruction device wherein a cutting member and hammer member are positioned on a movable carrier within a housing. A fixed anvil is mounted within the housing, and an opening in the housing is arranged to permit the needle end of a h...	11/29/1983
4395805	Jumper bridge machine An apparatus is disclosed for intermittently feeding wire forward along a generally longitudinal axis, cutting and forming a front end of the wire at a first station into a jumper bridge for an electronic hybrid substrate and presenting the jumper bridge ...	08/02/1983
4290292	Manufacture of rotatable ignition files or flint wheels Elongate wire stock of gauge appropriate to the desired diameter of a rotatable ignition file or flint wheel is cut into blanks of suitable size. A series of press operations is applied to the blanks by means of respective punches and dies to champfer or ...	09/22/1981
4265104	Method and device for cutting a metal strip simultaneously into at least three continuous comb-shaped components In a method for simultaneously cutting three continuous double-comb components from a metal strip the strip is moved forward stepwise. At each stop, a row of notches is made along each edge to form teeth and a row of crosses is removed from its central pa...	05/05/1981
4138959	Production of composite articles Apparatus for making a container for example a frusto-conical container from a blank having an end panel and side panels, the apparatus having a cavity tool and a core between the blank can be clamped in the form which it takes in the finished article, an...	02/13/1979
4064917	Apparatus for cutting and forming flexible beam leads of an integrated circuit chip Apparatus for blanking an integrated circuit (I.C.) chip and the chip's thin flexible ductile leads from a segment of film and forming the leads of the chip in a single operation of a hollow punch having cutting and forming edges and a hollow die having c...	12/27/1977
4019357	Method of making reinforcements for concrete This invention relates to a method of making reinforcements for concrete, in which a band material of one or two overlapped very thin steel plates which has a certain thickness and a ceratin width is bent and cut at a rotating cutter wheel having cutting ...	04/26/1977

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Class 72/330 - Blank detaching