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Class 72/398 - Movable toward and against portion of work (e.g., floating mandrel)


Subclass of Class 72 - Metal deforming
Definition: Device wherein said relatively distortable or displaceable
No. of patents: 45
Last issue date: 10/14/2008


1    
NumberTitleIssue Date
7434440Heavy-duty PEX clamp installation tool
A heavy-duty hose clamp installation tool is described. A pair of lever arms operates a pair of jaw members to engage a pinch clamp ear. The installation tool includes a pair of jaw members with clamp edges forming a lip for receiving the clamp ears. A pair of exten...
10/14/2008
7337640Propeller repair apparatus
A propeller repair apparatus suitable for repairing and changing the pitch of a propeller includes a first rail parallel to and spaced from a second rail. A tapered shaft extends upwardly between the first and second rails for mounting a propeller thereon. A first f...
03/04/2008
7325435Method of manufacturing, apparatus and resulting irregular shaped cross section tubes
A method and apparatus for making a tube having an inverted cross section and the resulting tube made thereby. ...
02/05/2008
7290337Manufacturing method for frame body and frame body
In this manufacturing method for a frame body, after ring rolling a metal material to form a ring-shaped member, a rectangular member is formed by pressing and deforming this ring-shaped member in the radial direction. At this time, an angle of corner portions that ...
11/06/2007
7257982Apparatus for forming a beam member used as a torsion beam for the rear wheel suspension of an automobile
An apparatus for forming a beam member for a torsion beam in a rear wheel suspension system of an automobile wherein said apparatus includes top and bottom dies for forming a U-shaped or V-shaped section and an extension section of the beam member, upper and lower p...
08/21/2007
7091863System and method for tracking the movement and location of an object in a predefined area
A preferred embodiment includes a system for tracking the movement and location of an object in a predefined area. The system comprises an object having at least one readable sensor contained therein. The at least one readable sensor transmits a unique signal. There...
08/15/2006
7069764Method 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
7013928Peritoneal dialysis catheter
A peritoneal dialysis catheter having an inflow conduit and an outflow conduit. Each conduits are linearly mated and contoured to cooperatively define a substantially circular cross sectional profile along a medial, trans-abdominal segment, but separating perhaps in...
03/21/2006
6929035Thin walled compartmented tubular structure and its manufacturing process
Thin walled compartmented tubular structure and its manufacturing process. The elbow or T-shaped structure, includes an external wall (14)and continuous internal walls (22) made in one piece. This therefore materializes, between the inlet (10...
08/16/2005
6748655Method for profiling the outer circumferential face of cylinder liners
A method for producing, by forming techniques, an undercut profile in the outer circumferential face of cylinder liners to be cast in place in a crankcase, characterized by the introduction of a bracing inner core into the cavity of a cylinder liner, the introductio...
06/15/2004
6619098Process and device for bending of hollow profile strips into spacer frames for insulating glass panes
A bending head for bending of metallic hollow profile strips (2) in the production of spacer frames for insulating glass panes has a bending abutment (5) and a bending cheek (7). The bending abutment (5) can be placed by swivelling against one side of the...
09/16/2003
6591657Method of manufacturing ball joint
An intermediate molding (41) is formed so that a cylindrical arm-to-be portion (42) projects from the cylindrical outer surface of a body portion (13) of the arm-to-be portion (42). The arm-to-be portion (42) has a given thickness and a hole (42a) with a ...
07/15/2003
6389872Mandrel apparatus with floating spring members
A mandrel for insertion into a pipe prevents distortion and buckling while bending the pipe. The mandrel comprises three or more radial support members distributed along a longitudinal extent of the mandrel. A first radial support member is located at a f...
05/21/2002
6347539Bending method for pipe material
In a method of bending a pipe material, in order to use an apparatus, such as a press, and prevent the pipe material from being made thin and cracks from being generated, one side of a cylindrical pipe material is firmly held by a first clamp and another ...
02/19/2002
6317979Method of manufacturing a hollow rack bar
A manufacturing method of a hollow rack bar wherein the load imposed on the rack teeth configuration of a forming die is reduced and precision level of the formation of rack teeth is improved. After the formation of a flat portion, a steel pipe is placed ...
11/20/2001
6289711Method and device for rounding bushings
The invention concerns a bending device (10) comprising two shaping dies (12, 14) with shaping chambers (22, 24) in order to round a sheet bar (26) about a core (16). The peripheral lengths of the two shaping chambers (22, 24) are each longer than half th...
09/18/2001
6145198Method of making a spring for earring clip
An earring clip spring assembly has a strip of spring metal which is bent to have a pair of spring arms connected to each other by a closed U-shaped portion. An opening through the omega shaped portion receives a pin which holds the spring to an earring c...
11/14/2000
6044687Three-dimensional simple flexible mould for bending pipes
A three-dimensional simple flexible mould for bending pipes comprised of a plurality of arciform or half-circled spring elements, pins and chucking rings for being a protecting mould in a three-dimensional pipe bending process. The two ends of every sprin...
04/04/2000
6032511Three-dimensional simple flexible mould for bending pipes
A three-dimensional simple flexible mould for bending pipes comprised of a plurality of arciform or half-circled spring elements, pins and chucking rings for being a protecting mould in a three-dimensional pipe bending process. The two ends of every sprin...
03/07/2000
5983698Easy removed die core device used for cold swaging
An easy removed die core device used for cold swaging comprising a mandrel, two end supporting members, an outer spring and a plurality of inner springs, wherein, the mandrel is extended into the position between the two end supporting members which are p...
11/16/1999
5950482Method for shaping tubular member
A tubular member to be shaped comprises a first portion to be shaped and a second portion other than the first portion. A punch having a projection is inserted into the tubular member and the tubular member is pressed between a die having a recess and an ...
09/14/1999
5941118Die forging method for metallic hollow pipes
A method for forging a die core with a given shape for manufacturing metallic hollow pipes with a thin wall, the method is completed by using a hollow can shaped plastic film loaded with a filler, the plastic film is endued with embossment in conformity w...
08/24/1999
5909907Machine for automatically manufacturing puzzle-lock compression rings
A method and machine for manufacturing compression rings in which flat band material is fed to a stamping station from a feed station, a blank is stamped out with a mechanical connection having male and female configurations at opposite ends, the blank is...
06/08/1999
5855137Method of manufacturing a reservoir tube
Reformation of a round tube to a tube with a selected polygonal segment is achieved by supporting the round tube on a mandrel having rounded corners that mate with the tube's inside diameter. The mandrel is otherwise provided in the resultant polygonal sh...
01/05/1999
5237850Conveyor rollers and manner of their manufacture
A method of reducing the end portion of a pipe to a smaller diameter of exact and smooth dimensions for fitting therein a roller contact bearing comprises the steps of; inserting into the end to be reduced a mandrel of an outside diameter coextensive with...
08/24/1993
4866971Method of manufacturing pronged skirt clip
A clip and process for its manufacture includes feeding a strip into a cutting and bending machine. The strip is formed into blanks such that one end of the blank has two prongs. The border of the area between the prongs on the first end matches the outli...
09/19/1989
4852380Method and device for shaping by hammering a corrugated tube and the application thereof to tubes for the automobile industry
A shaping device for corrugating a tube includes at least one mandrel which is radially expansible and has a body associated with at least one relatively resilient arm which carries on its surface an impression whose profile corresponds to the profile of ...
08/01/1989
4827590Method of making of header for automotive air conditioner evaporator
A header for an automotive air conditioner evaporator is made from a cut-off length of a cylindrical aluminum tube (10), one end of which is clamped on a cylindrical arbor (11) so that a header region (20) of the tube can be pressed into a generally recta...
05/09/1989
4722216Radial forging method
A tubular metal workpiece undergoes radial forging employing shrink forming. A multiplicity of dies are arranged circumferentially around the workpiece and urged radially inwardly in a first shrink forming pass to decrease the diameter of the workpiece. T...
02/02/1988
4722209Apparatus and method for processing powder metallurgy tubing
An apparatus (10) and method for consolidating and sintering a tube preform (12) previously fabricated by powder metallurgical techniques. A plurality of forming dies (22, 24) and movable mandrels (30, 32) cooperate to form tube consolidation zone (58,60)...
02/02/1988
4608849Bending apparatus
Apparatus for bending a light gauge, profiled, metal panel to a curved shape, including an anvil mounted on a frame and having a part-annular surface, an arm mounted for pivotal movement about the center of curvature of the part-annular surface, a roller ...
09/02/1986
4570475Brake shoe resizer
A brake shoe resizer characterized as a hydraulically operated die which includes a groove presenting a shape corresponding to the area of the ribs surrounding the openings for the brake shoe anchor pin. Guide and/or stop means are provided for positionin...
02/18/1986
4513601Method for locally deforming a round tube into a tube comprising planar surfaces and a forming punch for carrying out said method
The forming punch (18) comprises two planar surfaces (20, 22) interconnected by an edge (23), two portions of a cylinder which passes through the edge (23) and a curved surface centered on this edge. This punch (18) is inserted in the tube to the point of...
04/30/1985
4466267Process for forming curved structures, and the resulting structures
Curved metal structures such as cylinders, circumferential parts of cylinders, tubes, and circumferential parts of tubes formed from flat stock have reformed protrusions in limited areas in order more accurately to position mating parts. The flat stock is...
08/21/1984
4429561Mandrel for cold forging internally profiled tubes or cylinders
A mandrel for the production of internally profiled, specially threaded tubes or cylinders (2) by the cold forging of tube shaped forging blank (2) around a profiled mandrel (3) by cold forging the workpiece (2) from its one end to the opposite end. The t...
02/07/1984
4428220Method and tool for the cold forging of internally profiled tubes
A method and tool for cold forging or cold hammering of internally profiled tubes, whereby a forging blank (2) is while rotated, forged by the action of a number of forging hammers (4), whereby the workpiece (2) as a result of material displacement is for...
01/31/1984
4428222Cold forging mandrel with threads
A mandrel for the production of internally threaded tubes or cylinders by the cold forging of a forging blank (3) around an externally threaded mandrel (2). The mandrel is formed with a conicity of 0.2-1.0% or preferably 0.4-0.7% and the flanks of the man...
01/31/1984
4395900Stiff metal ring and process for making it
A stiff ring useful for such purposes as electric motor housings. The ring is a single piece, usually having a ratio of diameter to wall thickness less than about 40:1. The ring consists of a single piece of steel cut from a continuous strip having a tong...
08/02/1983
4373256Method of making rotor coil of coreless motor
A method of making cylindrical rotor coil for use in coreless motors is provided whereby the coil is of a reduced thickness with compressed coil turns enabling the stator magnetic gap distance to be reduced, thus enabling a higher flux density to be utili...
02/15/1983
4370788Method of lining cylindrical bores
A method of lining a cylindrical bore for instance of an internal combustion engine with a thin-walled liner. Initially, a strip of material is cut to such a length that when formed into a cylindrical liner of external diameter equal to that of the unline...
02/01/1983
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