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| Number | Title | Issue Date |
| 7241086 | Apparatus for machining pipe ends, especially for cutting connecting threads A thread cutter for pipe ends has a tool head rotating coaxially with respect to a fixedly clamped pipe end and provided at tool holders in the form of radial sliders. Actuators which are parallel to the rotation axis are mounted on a frame shiftable with respect to... | 07/10/2007 |
| 7150104 | Tool and method for scribing longitudinal lines on a cylindrical rod A tool for scribing a longitudinal groove on an elongate cylindrical rod suitable for implanting as a prosthetic in a living being supports the rod in a linear groove on a bed of a frame of the tool. A track is mounted on the frame and runs parallel to the groove. A... | 12/19/2006 |
| 7089838 | Zero centerline toolholder assembly A zero centerline toolholder assembly includes a cutting insert mounted to a toolholder. The center, RC, of the nose radius of the cutting insert is aligned with or lies on a centerline, LT, of the toolholder. The centerline, LT, of the toolholder may be also aligne... | 08/15/2006 |
| 6959553 | Systems and methods for designing threads of turbine engine connectors A connector that receives a threaded apparatus and reduces stresses induced from the treaded apparatus into the connector is described. The connector includes a top side, a bottom side, and an opening that extends therethrough. The opening is defined by an inner sur... | 11/01/2005 |
| 5871403 | Method and apparatus for producing dual synchronized threads Method and apparatus are disclosed for forming dual synchronized threads on the interior and exterior cylindrical portions of a tube or pipe, and in the inner and outer cylindrical surfaces of an annular channel formed in an object. The method for produci... | 02/16/1999 |
| 5797802 | Die head A fast-acting die head that is particularly well-suited for use with small-size workpieces employs a set of chasers, each formed as a single piece and having a nose portion that provides two force-receiving surface elements. One of the surface elements is... | 08/25/1998 |
| 4674924 | Single-sided cutting insert A single-sided cutting insert preferably for thread chasing, the lower face of which comprises three support surfaces inclining towards the center of the lower face and a recess separating them. The support surfaces are projecting partly around the recess... | 06/23/1987 |
| 4669925 | Roughing/finishing threader Roughing threader cutting tool for Buttress pipe thread employing three scallops with arcuate chip breaking back walls for leading transvese and side flank cutting edges solving problem of excessive time consuming multiple passes and coil string chips and... | 06/02/1987 |
| 4645386 | Thread-cutting apparatus Thread-cutting apparatus includes an indexable insert having multiple thread-cutting profiles. The invention may be embodied either in a thread-milling insert or a thread-chasing insert. The insert is configured to provide clearance for internal threading... | 02/24/1987 |
| 4575888 | Thread cutting insert The present invention relates to a thread cutting insert (10) for use with an indexable tool. The insert (10) is a triangular, flat wafer of cutting material comprising three countersunk cutting corners (11), each having a chamfered part (12) provided wit... | 03/18/1986 |
| 4572713 | Cutting insert for thread cutting A thread cutting insert comprises parallel side surfaces and two mutually adjacent edge surfaces, which are provided with cutting teeth and extend between the side surfaces. For purposes of minimizing the amount of material ground away from a blank during... | 02/25/1986 |
| 4531863 | Thread-cutting apparatus Thread-cutting apparatus includes an indexable insert having multiple thread-cutting profiles. The invention may be embodied either in a thread-milling insert or a thread-chasing insert. The insert is configured to provide clearance for internal threading... | 07/30/1985 |
| 4281430 | Method and apparatus for machining pipe collars A method and apparatus for machining pipe collars having internally tapered coaxial threads is accomplished by providing a thread cutting tool having defined thereon a single thread groove forming tooth with first and second thread topping forming portion... | 08/04/1981 |
| 4244068 | Method and apparatus for machining pipe collars A method and apparatus for machining pipe collars having internally tapered coaxial threads is accomplished by providing spaced sets of threading teeth on one side of a tool support bar of the numerically controlled machine with the spaced sets of threadi... | 01/13/1981 |
| 4233867 | Multiple insert tool assembly for threading, grooving and the like A tool assembly includes a plurality of tool bit inserts, each having a cutting edge formed on at least one end of the insert, the insert being securely clamped to the head portion of a shank which is mountable to a machine tool, with the cutting edges of... | 11/18/1980 |
| 4137000 | Cutting tool A cutting tool which may comprise: an elongated bar member having a wedge-shaped recess at one end thereof; a wedge-shaped anvil member rigidly and removably fastened in the wedge-shaped recess of said bar member, having an elongated recess in which a cut... | 01/30/1979 |
| 4117563 | Thread chaser tool for contiguous straight and tapered thread runs A thread chaser tool with cutting edge defined by two symetrical points. The tip radii of the two points are spaced apart slightly less than the pitch of a thread to be cut. The thread form is generated by the inside flanks of each point and a crestformin... | 10/03/1978 |
