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| Number | Title | Issue Date |
| 7251975 | Manufacturing tool for fluid dynamic bearing A manufacturing tool (20) for forming a dynamic pressure groove (52) in an inner peripheral surface of a bearing sleeve (50) includes a tool shaft (21) for being rotated in a bore of the bearing sleeve while being moved in an axial direct... | 08/07/2007 |
| 7171840 | Metal container with thread A metal container with thread capable of preventing such a defect that the strength of a lower end of a mouth part and an upper end of a shoulder part of a container main body is non-resistant to a pressing force in radial and axial directions, and a part of the con... | 02/06/2007 |
| 7159428 | Pre-beading method and apparatus A pre-beading apparatus for fashioning a cylindrical includes a housing have a work surface and an aperture formed in the work surface, where the aperture is capable of accommodating the cylindrical workpiece. A rotatable head assembly is concentrically aligned with... | 01/09/2007 |
| 7143490 | Tap process for hard workpieces A process and apparatus for producing screw threads in hard material workpieces with a series of taps. The present invention employs a threaded bore formed in a bracket assembly to align and position multiple taps on a rotary machine. The taps are used in sequence t... | 12/05/2006 |
| 7131181 | Tool for manufacturing ballpoint pens A tool and method of manufacturing a tool for making ballpoint pen tips, called rough tips, in their seat zone and preferably in their cone zone. The tool is mounted in fast-rotating precision spindles and the position of the tool may be adjusted to adjust the dimen... | 11/07/2006 |
| 7114891 | Thread forming tool with annular ridge A thread forming tool includes an elongated body defining a longitudinal center axis. The body including a thread forming portion formed by one or more annular ridges oriented perpendicular to the axis. The body has a non-circular shape in a cross sectional plane or... | 10/03/2006 |
| 7096570 | Tubing expansion tool In an embodiment of the invention, there is disclosed a tubing expansion tool (300) comprising a body (302) adapted for rotation within tubing to be expanded, and three expansion member modules (306) each comprising an expansion member (310 | 08/29/2006 |
| 7021100 | Deep-rolling apparatus of a deep rolling machine crankshafts The present invention relates to the deep rolling apparatus (8) of a deep rolling machine 1 for crankshafts (3) in which two arms (9, 10) across from each other support a deep rolling head (13) or a support roller head (14).... | 04/04/2006 |
| 7021101 | Method and apparatus for manufacturing a battery terminal with undercut rings A method and apparatus utilizing a radial rolling process to cold form rings on a lead battery terminal with undercuts or overhangs to improve the sealing properties of the rings. The apparatus includes a fixture configured to securely position the battery terminal ... | 04/04/2006 |
| 7013692 | Valve guide grooving tool A tool for grooving an outer surface of a valve guide comprising a tool body, a tightening nut disposed about a portion of the tool body, one or more rollers rotatably mounted within a bushing, and a handle for rotating the one or more rollers of the tool about the ... | 03/21/2006 |
| 7003998 | Apparatus for forming a flange at the end of a conduit Apparatus for shaping a conduit to form a radially outwardly projecting flange at an end thereof includes a holding fixture, a collar surrounding the conduit disposed in an opening in the holding fixture, rotation imparting structure engaging the collar for simultan... | 02/28/2006 |
| 6968896 | Orienting whipstock seat, and method for seating a whipstock The present invention provides an apparatus and methods for seating a whipstock. The apparatus comprises an expandable seat, or nipple, configured to receive a whipstock. The seat is run into a cased wellbore, and is set by expanding it into frictional contact with ... | 11/29/2005 |
| 6931902 | Tube flaring machine A tube flaring machine having a frame having an upper end and having a lower end; a tube clamp having a plurality of radially arranged clamping shoes; a collet ring and a gantry fixedly attached to and overlying the collet ring; a radially segmented anvil ring cumul... | 08/23/2005 |
| 6918278 | Pipe preparation tool adaptable for different diameter pipes A tool for preparing pipes for coupling using mechanical couplings is disclosed. The tool has a movable roller pivotally attached to a body, a tapered roller rotatably attached to the body and a plurality of tool rollers rotatably mounted on a carriage slidable with... | 07/19/2005 |
| 6745606 | Device and method for bending cylinder edge An apparatus and method for forming cylindrical magnetic assemblies for rotating electrical machines. The apparatus and method pre-bends and finally bends a flange of the supporting shell to lock the permanent magnets in place. This is done in a single station and i... | 06/08/2004 |
| 6708544 | Thread rolling die and process for the production thereof In a rolling die for forming a ball screw by rolling for example, a biting portion is formed on one end of a straight portion while a relief portion is formed on the other end. Further, the helical protrusion on the biting portion and the helical protrusion on the r... | 03/23/2004 |
| 6666062 | Pipe preparation device A device for preparing pipe segments for joining with mechanical pipe fittings in a piping network is disclosed. The device has a fixed support with support surfaces engageable with the pipe segment, and a movable support, facing the fixed support, on whi... | 12/23/2003 |
| 6192561 | Cartridge case former and method A cartridge case former and method includes a front arbor plate, a rear arbor plate and a plurality of arbors extending between the front arbor plate and the rear arbor plate. The cartridge case former also includes a plurality of rotatable roller dies di... | 02/27/2001 |
| 5937684 | Tap employing deformation of matter This invention relates to a tap employing deformation of matter, wherein it comprises a body which bears three rotating cylinders mounted idly and provided with annular threads each distant by the value of the pitch of the threading to be made. These thre... | 08/17/1999 |
| 5727411 | Method of forming grooves on metal pipe and groove-forming apparatus Each of specific rollers which corresponds to one of the grooves is disposed in a circumference of the metal pipe at equal intervals and is pressed against the periphery of the metal pipe 10, thereby forming a plurality of the grooves at the same time. Be... | 03/17/1998 |
| 5165267 | Curling apparatus A plurality of rolls are supported and freely shiftable on a rotating supporting shaft. The rolls have a V-groove with a circular arc at the bottom of the groove. The plurality of rolls are arranged on a swivel table so that the rotating supporting shaft ... | 11/24/1992 |
| 4942752 | Apparatus for reforming and restoring the surface of a cylindrical workpiece manually A handtool for restoring and reforming the surface of cylindrical workpieces.... | 07/24/1990 |
| 4831855 | Flaring tool and apparatus equipped with a flaring tool A flaring tool and flaring apparatus for cylindrically flaring the ends of tubes. The flaring tool is provided in the vicinity of one end thereof with flaring elements that are fixedly connected thereto and have an at least approximately spherical shape. ... | 05/23/1989 |
| 4716752 | Tube expanding and flaring tool A tube expanding and flaring tool comprising a rotatable cage which has a nose guide, size to be received in a tube end that is to be expanded and flared. The cage has a tail shaft by which the cage is to be rotated. There is at least one roller carried b... | 01/05/1988 |
| 4539832 | Hole sizing tool A hole sizing tool uses a swaging tap to move material which deforms the sides of a generally cylindrical hole toward the axis of the cylinder and is followed by a portion of the tool having a generally flat flaced helical spiral configuration with the tu... | 09/10/1985 |
| 4498322 | Thread-rolling tool A thread-rolling tool having a body provided with thread rollers uniformly disposed along the circumference thereof, the axes of the rollers being in angular position relative to the axis of rotation of the body and at an angle equal to the lead angle of ... | 02/12/1985 |
| 4491002 | Method for forming on workpiece resilient thread having closed helical cavity inside the thread A method of forming on a workpiece a resilient thread, having a closed helical cavity inside the thread, includes plastic deformation of the walls of a preformed helical groove whose depth exceeds the depth of the roots of the thread to be obtained. The v... | 01/01/1985 |
| 4450700 | Method and apparatus for necking and flanging container bodies A method and apparatus for necking and flanging container bodies are disclosed. One or more free-wheeling dies are rotated within a stationary outer die and are journeled for radial movement within the outer die. The open edge portion of a metallic can bo... | 05/29/1984 |
| 4426870 | Method and tool for making elastic thread having closed helical cavity inside thread profile A method of making an elastic thread having a closed cavity inside the thread profile comprises plastically deforming the walls of a preformed helical groove by means of a thread-forming tool (2). The helical groove is made at least double-start and havin... | 01/24/1984 |
| 4055064 | Muffler and tail pipe expander and cleaner A muffler and tail pipe expander and cleaner has two wedges for spreading a split frame, and with two spiral serrated rollers mounted on each frame. After insertion of the tool in a pipe to be cleaned and expanded, a draw bolt is used to bring the wedges ... | 10/25/1977 |
| 3942349 | Crown die for thread rolling of applicator rolls A die for through feed thread rolling of fine external threads on a cylindrical work piece or applicator roll is given whereby a die having substantially uniform threads and a variable diameter is employed.... | 03/09/1976 |
