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Class 72/353.4 - Symmetrically expanding tools


Subclass of Class 72 - Metal deforming
Definition: Subject matter wherein the first and second deforming instrumentalities
No. of patents: 41
Last issue date: 05/13/2008


1    
NumberTitleIssue Date
7370507Lugged cap forming system
Transfer apparatus and method are provided from first (15A, 16A) to second (15B, 16B) stations of tooling in a cap (11) making press. This cap is biased against the first upper tools by a first airstream (50) introduced unde...
05/13/2008
7254979Device for ejection of moulded pieces from a moulding tool
The invention relates to a so-called spring cushion (5), for the ejection of moulded pieces (4) from a moulding tool (3), with a plunger (6), moving in a guide tube (9) within the moulding tool and loaded in the ejection direction ...
08/14/2007
7243770Clutch assembly including strengthening members
A clutch housing assembly for use in vehicle drivelines includes at least one strengthening member at an open end of the housing. The strengthening member preferably is formed by cutting away portions of the housing near the open end and then deforming the remaining...
07/17/2007
7207203Methods and apparatus for forming a workpiece
A method of forming a workpiece using an apparatus is provided. The apparatus includes a first stage including a die fixture, a die actuator coupled to the die fixture, and a holding member configured to cooperate with the die fixture to hold the workpiece. The meth...
04/24/2007
7100416Carrier and method of manufacturing carrier
A carrier C is integrally formed of a pair of flanges opposed to each other and designed to rotatably support rotating bodies therebetween and a plurality of joints for connecting the flanges. A groove is formed on the border between the flanges and the joints, and ...
09/05/2006
7000319Method of manufacturing outer races for tripod-type constant velocity universal joints
To make a peripheral lip region to be formed with chamfered portions by the use of a plastic working technique, to enable the use of a cup forming punch of a simplified shape so that a mold used therewith can be easily assembled and the punch when worn down can easi...
02/21/2006
6959582Expandable forming tool
An expandable forming tool has a body with a mounting stem on its upper surface and a transversely extending channel in its lower surface in which is slidably seated a wedge-shaped actuator for vertical sliding movement. The larger lower end normally depends from th...
11/01/2005
6684678Method for extracting a tool from a hollow object and tool for machining a hollow object
The invention relates to a method for extracting a die (4) from a hollow object (11) having several grooves (16, 17) arranged opposite one another on the surface of the inner sheath whereby the longitudinal axes thereof extend crosswise relative to the co...
02/03/2004
6626021Engine oil pan and forming method and apparatus
An oil pan includes an oil reservoir and a pair of side walls facing the reservoir. A bulge is formed in each side wall. Each bulge defines an oil sub chamber connected to the oil reservoir. The bulges are formed integrally with the side walls by deformin...
09/30/2003
6484550Method and apparatus for necking the open end of a container
An apparatus for reducing the diameter of an open end of a container is claimed. The apparatus comprises a housing having a longitudinal axis. A die is supported in the housing about the longitudinal axis. A radially expandable pilot member is also suppor...
11/26/2002
6481260Device for embossing metal pipe
A device for embossing metal pipe is disclosed. The device includes a core having a plunger hole and a plurality of core pass through holes perpendicular to the plunger hole. The device also includes a plunger for moving through the plunger hole to push t...
11/19/2002
6477882Forming machine
In order to obtain uniform pressing force applied to a workpiece by an ironing die and easily disengage the workpiece after completing plastic working for the workpiece, a forming machine for performing the plastic working for the workpiece has a base ped...
11/12/2002
6338189Method and apparatus for expansion forming a workpiece using an external deformable supporting fixture
The present invention generally relates to an external cylindrical or conic section shaped fixture which is tightly fit around the same shaped workpiece prior to expansion forming to a final dimension. During expansion forming, the external fixture is als...
01/15/2002
6318143Apparatus for producing a vehicle wheel rim
An improved wheel rim expanding tooling apparatus includes an inboard wheel rim expanding tooling assembly and an outboard wheel rim expanding tooling assembly which are selectively moveable between a retracted non-working position and an extended working...
11/20/2001
6155094Pressing tool for forming winding end turns in a stator
A press tool for forming a compressible mass into an annulus of given inner and outer diameters and axial length, the tool having radially movable outer and inner tool parts adapted to expand and contract, respectively, to form the mass to the desired inn...
12/05/2000
5970776Apparatus for forming a cup-shaped cage
An apparatus for forming a cup-shaped cage, including a cup-shaped workpiece, an outer die having a center axis and a cavity about the center axis, an inner die coaxially disposed within the cavity of the outer die, and a mandrel adapted to move axially a...
10/26/1999
5765430Method for and apparatus of producing outer member of universal joint having cross-grooves
A method for and an apparatus of producing an outer member of a universal joint having cross-grooves are provided in order to increase replenishability of the inner peripheral portion of the outer member. The outer member 1 is provided in a preformed mate...
06/16/1998
5697245Apparatus for forge-forming outer-ring of constant velocity joint and method thereof
An outer-ring of a constant velocity joint is fabricated by pressing an inner surface of the pre-processed outer-ring (2A) set in a lower die (3) by using a forging punch (20) in which plural punch pieces (11) each having a protrusion (111) corresponding ...
12/16/1997
5595086Apparatus for calibrating hollow nonsymmetrical multiplane extrusions and associated method
Apparatus for calibrating a nonsymmetrical hollow article includes a plurality of internal die elements which are inserted into the hollow article and are expanded by a tapered plunger so as to outwardly reform the hollow article into the desired size and...
01/21/1997
5568745Method and apparatus for making disc wheels and wheels made thereby
An improved wheel disc and disc and and rim wheel assembly, and method and press apparatus for manufacturing the same. The wheel disc is adapted for telescopic press fit precision mounting into a mating wheel rim to form the wheel assembly. A flat disc bl...
10/29/1996
5235738Apparatus for end turn shaping
A method and apparatus for shaping the winding end turns of a stator assembly wherein the outside diameter of the end turns is first engaged by a set of alternate segments in a circular array and is thereafter engaged by a set of intervening segments of t...
08/17/1993
5231863Mandrel loading method and apparatus in a thermal sizing-annealing process
To facilitate safe loading of a thermal sizing mandrel in an elongated channel of open rectangular cross section, a corner rod die is first lowered into a fixture, and then a channel is lowered into the fixture to a vertical position surrounding the die. ...
08/03/1993
5186082Ironing punch for making socket of ball-and-socket joint and method of manufacturing such ironing punch
An ironing punch for ironing the socket of a ball-and-socket joint has a punch body with a plurality of circumferentially spaced ridges disposed on an outer circumferential surface thereof and extending from a distal end surface. The ironing punch also in...
02/16/1993
5138863Coupling for a gas pipe joint and associated method for making same and device therefor
An apparatus and associated method is for forming an end of a piece of gas conduit and attaching it to a second piece of conduit. The apparatus is provided for smoothing the end of a corrugated conduit and expanding it to a predetermined diameter. An asso...
08/18/1992
5033301Coupling for a gas pipe joint and associated method for making same and device therefor
An apparatus and associated method is for forming an end of a piece of gas conduit and attaching it to a second piece of conduit. The apparatus is provided for smoothing the end of a corrugated conduit and expanding it to a predetermined diameter. An asso...
07/23/1991
5010759Wheel rim shaping apparatus having a single cotter supportable at both ends thereof
A wheel shaping apparatus including a single cotter for expanding first and second dies circumferentially split into a plurality of first and second die elements, respectively. The single cotter is supported by a cotter supporting member at one end portio...
04/30/1991
5001920Method and apparatus for manufacturing a constant velocity joint and the like
A method and apparatus for manufacturing a product such as a constant velocity joint having a recess whose opening has a lesser diameter than its interior, by ironing a workpiece supplied to working parts of punches which workpiece is pre-formed into a ho...
03/26/1991
4987763Tool in kit form for deforming metal
A tool for deforming metal in kit form. The apparatus and associated method provided is for forming an end of a piece of corrugated conduit and attaching it to a second piece of conduit. The apparatus is provided for smoothing the end of the corrugated co...
01/29/1991
4893390Method and expander for manufacturing a furnace heat exchanger and plate assembly
A furnace heat exchanger and support plate assembly are joined together by a cooperating substantially elliptical rim defining an opening in the heat exchanger and an opening formed by a mating flange on a partition plate and extending perpendicular to th...
01/16/1990
4882924Method and apparatus for manufacturing hollow cylindrical guide roller for magnetic recording tape
A method for manufacturing a hollow tape guide for guiding magnetic recording tape. In this method, a round rod-like metal wire is sheared by shearing cutters into a blank a predetermined length, having a first end and a second end. Then, the blank is sha...
11/28/1989
4843864Press tooling for manufacturing constant velocity ratio universal joint members
Press tooling for manufacturing an inner or outer member of a constant velocity universal joint, with non-undercut ball-receiving tracks and, between such tracks, a part-spherical cage guiding surface, comprises a first element with radially extending rib...
07/04/1989
4776196Process and apparatus for forming flanged ends on tubular workpieces
Apparatus for forming a flanged end on a tubular workpiece comprising a die having a throat therethrough connected at one end to an abutment surface of the die extending transversely on each side of the throat, a main frame connected to the die, a sub-fra...
10/11/1988
4768368Tool for and method of making hollow articles
A tool for the manufacture of the outer member of a cross groove type constant velocity ratio universal joint has two sets of first and second elements disposed circumferentially between one another about the axis of the tool with the elements having port...
09/06/1988
4716756Clutch drum
A press-formed clutch drum of an automatic transmission of which inner and outer cylindrical surfaces are respectively formed with a first series of splines and a second series of inverted splines. The first and second series of splines are alternatively ...
01/05/1988
4706487Method of manufacturing a valve sleeve
A method of manufacturing a valve sleeve is disclosed which is adapted to construct an oil rotary valve together with a valve rotor, and a valve sleeve of a configuration which is suitably formed by carrying out the method is also disclosed. The valve sle...
11/17/1987
4644775Shell forming apparatus and process
Apparatus and process of manufacture for forming a generally cylindrical shell having an interior surface, an opened end with a first internal diameter, a generally closed opposite end, a first internal portion intermediate the ends with a second internal...
02/24/1987
4610155Manufacture of article having undercut internal surface
A tool for use in manufacture of a hollow article with an undercut internal surface, such as the outer member of a constant velocity ratio universal joint, comprising first and second elements (34,38) together defining the shape required in the article in...
09/09/1986
4416142Apparatus for simultaneously forming a cap member with internal threads
An apparatus and process is disclosed for forming a cap-like member from a blank of material. The apparatus comprises a die for shaping the cap-like member. A device is provided to co-act with the die for simultaneously forming both the member and interna...
11/22/1983
4406146Forging die for a part with internal, tapered grooves
A die for forging a part with internal, tapered grooves, for instance, such as a socket with a plurality of inner races used for a joint. The blank is formed into a given shape by a cylindrical projection provided in the upper die so as to compress the ou...
09/27/1983
4317356Method of and apparatus for forging a constant-velocity ball-type universal joint
A half of a constant-velocity ball-type universal joint is made by substantially confining a workpiece blank in a cavity between a pair of forging dies without substantial deformation of the blank. Then a plurality of race-forming tools are introduced int...
03/02/1982
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