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Class 72/213 - With use of means to move work-forcer


Subclass of Class 72 - Metal deforming
Definition: Subject matter including driver means to effect movement
No. of patents: 48
Last issue date: 07/03/2007


1    
NumberTitleIssue Date
7237417Roll preshaping
A preshaping method for massive forming processes is proposed in which a fixed blank is deformed by at least one roll moving continuously forward along a predetermined contour. ...
07/03/2007
7210215Method of manufacturing stator winding of rotary electric machine
A method of manufacturing a winding includes steps of twisting U-shaped conductor segments, inserting straight portions of the twisted conductor segments in slots of a stator core, bending ends of the straight portions in a circumferential direction of the stator co...
05/01/2007
7065994Magnetic marker for manufacturing processes and identification of finished workpieces
A permanent invisible magnetic marking and positioning system of unfinished steel rods, spring steel bars, workpieces, and the like. A midpoint or center of the rod, bar or workpiece is automatically located and a high-energy pulse is applied for an embedded magneti...
06/27/2006
7008425Pediatric intramedullary nail and method
An intramedullary nail (20) and related method for fixing a fracture in a long bone. The nail (20) comprises an elongate member (22) having a longitudinal axis (54), a proximal end section (32), a distal end section (34) and...
03/07/2006
6993950Rebar cutter and bender
A portable devic for bending and cutting rebar, reinforcing rod, and the like. For cutting, a shaft assembly is movable along a first longitudinal axis (A—A) between a retracted and an extended position. A movable cutting head carried by the shaft assembly coacts ...
02/07/2006
6931908Tube-bending device
A tube-bending device including a frame having a reciprocably mounted anvil and a coacting crossbar with tube-restraining blocks, together with a ratchet mechanism for driving the anvil toward the blocks to perform tube-bending operations, wherein the crossbar is re...
08/23/2005
6903479Method of manufacturing stator winding of rotary electric machine
A method of manufacturing a winding includes steps of twisting U-shaped conductor segments, inserting straight portions of the twisted conductor segments in slots of a stator core, bending ends of the straight portions in a circumferential direction of the stator co...
06/07/2005
6807839Cold folding method for a hollow tube of magnesium
A method cold folds a hollow tube of magnesium material. The method includes providing an inner rib at opposite sides of a hollow square tube made of magnesium material, accommodating the square tube by having opposed ends of the square tube received in an upper por...
10/26/2004
6644087Rod bender for bending surgical rods
A rod bender includes a ram shaft, having a distal end with an arcuate rod contact surface, that is movable along a shaft path that passes between two rollers, each having a curved roller surface. Each of the rollers is positionable, in an analog manner, ...
11/11/2003
6526793Magnetic marking and positioning system for unfinished metal bars
A permanent invisible magnetic marking and positioning system of cylindrical metal steel rods. To accurately locate the physical midpoint of the rod-to-be-cut, a novel head centering and positioning mechanism automatically sets the midpoint distance for e...
03/04/2003
6418772Centering device and method for U-bolt bending machine
A straight rod is automatically positioned at the center of a mandrel of a U-bolt bending machine for subsequent bending into a U-bolt by the bending machine. The rod is positioned between spaced centering plates of a centering device mounted to the machi...
07/16/2002
6314780Method of manufacturing conductor segments of AC generator
A method of manufacturing a U-shaped conductor segment which has a U-shaped head and a pair of legs includes setting a straight conductor wire of a prescribed length on the outer peripheries of a pair of parallel rollers, and pushing a bender against one ...
11/13/2001
6128942Bending machine
A bending machine for bending and straightening tubing and plate metal includes a base, a bed mounted to the base, a sliding panel mounted to the bed, and a bending apparatus mounted to the sliding panel. The bending apparatus further includes a bending a...
10/10/2000
6006581Rod bending system
A rod bending system includes a handle that holds a template rod and an implant rod in close proximity and in a fixed orientation with respect to one another. The system further includes one or more of the following: (a) a rod bender for bending the impla...
12/28/1999
5956991Forming device for shaped decoration panels
A forming device to shape decoration panels having relieved contours features a design that includes an upper and a lower laminated spring, a flexible die within a frame formed by a spiral strip spring, and a plurality of movable rollers. The purpose of t...
09/28/1999
5953947Method and apparatus for forming a profile in a wall of a hollow cylindrical work piece
Hollow cylindrical blanks of tubular stock are transformed into finished work pieces (3) in a single work stroke with a profiling tool (7) equipped with profiling rollers (30) in one tool section (8) and a die matrix (15) in another tool section (6). The ...
09/21/1999
5862700Method and apparatus for forming a profile in a wall of a hollow cylindrical work piece
Hollow cylindrical blanks of tubular stock are transformed into finished work pieces (3) in a single work stroke with a profiling tool (7) equipped with profiling rollers (30) in one tool section (8) and a die matrix (15) in another tool section (6). The ...
01/26/1999
5829297Press apparatus for forming gear teeth
A gear teeth forming apparatus is used for forming a plurality of gear teeth on an outer circumferential wall of a pressed drum. The apparatus includes a die and a plurality of rotational rollers. A plurality of convex/concave portions are formed in the a...
11/03/1998
5794475Apparatus and process for manufacturing profiled bodies
For shaping longitudinal grooves or comparable longitudinal structures into round housings or housings which are otherwise regularly shaped with respect to a longitudinal axis, a press is provided with a deforming tool whose top tool presses a workpiece t...
08/18/1998
5724852Portable small rebar bending machine
The portable small bending machine has a frame with first and second spaced anvils. A cylinder is mounted on the frame to pull a bending die between the anvils to bend rebar therebetween....
03/10/1998
5709118Press apparatus for forming gear teeth
A gear teeth forming apparatus is used for forming a plurality of gear teeth on an outer circumferential wall of a pressed drum. The apparatus includes a punch and a plurality of rotational rollers. A plurality of convex/concave portions are formed in the...
01/20/1998
5551271U-bolt bending apparatus
A vertical frame supports an interchangeable mandrel or die which receives the center portion of an elongated metal rod having opposite threaded end portions, and the rod is clamped to the die by a pivotal locking bar secured by a wedge actuated by a hydr...
09/03/1996
5528921Tube bending appartus
A tube bending apparatus has an elongate frame with a longitudinal slot in an upper surface thereof and removal rollers laterally spaced at each side of the slot above the upper surface. A rolling carriage and reciprocating ram are disposed beneath the up...
06/25/1996
5477724Apparatus for forming bale tie for package
For tying a compressed bale tending to expand primarily along a major axis, a bale tie made preferably from steel wire or alternatively from steel strap is bent to form two marcelled portions, which are characterized by sinusoidal undulations, which are o...
12/26/1995
5461897U-bolt bending apparatus
A frame supports an interchangeable mandrel or die which receives the center portion of an elongated metal rod having opposite threaded end portions, and the rod is clamped to the die by a locking bar actuated by a hydraulic cylinder. The frame also inclu...
10/31/1995
5259232Bending machine
A hand operated rebar bender and bent bar straightener which includes a base, a pair of spaced apart bending posts and a linearly reciprocal slide disposed between the posts and movable reciprocally in directions perpendicular to a line interconnecting th...
11/09/1993
5253502Apparatus and method for bending and forming sheet material
An apparatus for bending and forming sheet metal into U-shaped channel members is comprised of a support block for supporting a blank of sheet metal in a centered position, a pair of rollers that engage in rolling contact against opposite ends of the shee...
10/19/1993
5027633Box makers forms
A method of bending rule to be used to cut a slot as part of a box makers form comprising locating the rule tangentially of a pair of rollers and driving a former between the rollers so that the rule pivots around the rollers as it is bent....
07/02/1991
5016350Method for manufacturing reinforced tines
Reinforcing device formed from a bent metallic bar stock formed into two legs, having an intermediate bend thereof, inserted into the hollowed end of a tine, such as for a hay loader, or related lift mechanism, and therein reinforcing the tine against she...
05/21/1991
5001918Method and apparatus for making blanks of a profile varying lengthwise
A method for making blanks of a profile varying lengthwise, such as few-leaf springs involves placing a heated billet (1) on a sizing former (2) and feeding it to a deformation zone for forming a product of a preset profile which is carried out from the m...
03/26/1991
4989441Tube-bending device
A tube-bending device that includes a main body on which is pivotably mounted a ratchet lever that via a driving pawl engages a ratchet bar that is displaceably guided in the main body and is provided for an anvil. A detent is also pivotably mounted on th...
02/05/1991
4936131Production of threaded metal rods for making U-bolts
Elongated straight cylindrical metal rods are threaded along opposite end portions, and the cylindrical outer surface of the center portion of each rod is marked to form a visual indicator of the longitudinal center of the rod. The straight rods are succe...
06/26/1990
4835805Production of threaded metal rods for making U-bolts
Elongated straight cylindrical metal rods are threaded along opposite end portions, and the cylindrical outer surface of the center portion of each rod is marked to form a visual indicator of the longitudinal center of the rod. The straight rods are succe...
06/06/1989
4811589Fork member for pipe-bending apparatus to support spaced pipe abutment
A fork member for the bending section of a pipe bending apparatus includes a flat base having two symmetrically disposed diverging legs. Each leg has a protruding headed pin and a set of slots extending radially from the pin symmetrically on both legs. An...
03/14/1989
4794779Bending machine
A hand operated rebar bender and bent rebar straightener which includes a base, a pair of spaced apart bending posts and a linearly reciprocal slide disposed between the posts and movable reciprocally in directions perpendicular to a line interconnecting ...
01/03/1989
4788847Rod bending apparatus
A rod bending device using a combination of a movable mandrel and two moving rollers, between which mandrel and which rollers the rod bending is effected, the movements of which mandrel and rollers are effected simultaneously by the same power system and ...
12/06/1988
4748707Production of threaded metal rods for making U-bolts
Elongated straight cylindrical metal rods are threaded along opposite end portions, and the cylindrical outer surface of the center portion of each rod is marked to form a visual indicator of the longitudinal center of the rod. The straight rods are succe...
06/07/1988
4654912Production of threaded metal rods for making U-bolts
Elongated straight cylindrical metal rods are threaded along opposite end portions, and the cylindrical outer surface of the center portion of each rod is marked to form a visual indicator of the longitudinal center of the rod. The straight rods are succe...
04/07/1987
4594875Bending machine
A device for bending a metal bar especially suitable for bending metal bars used in reinforcing concrete structures. The device is hand operated and portable and includes a slide for bending the bars in a single horizontal plane which allows multiple, clo...
06/17/1986
4538440Roll swage device
Device for swaging a loose fitting onto a core. The device has at least two opposed coplaner swaging tools each rotatable about a fixed axis and together forming a swaging station. Pusher means are provided for pushing the fitting through the swaging stat...
09/03/1985
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