Class 408/215 - With pitch-stabilizing ridge

Subclass of Class 408 - Cutting by use of rotating axially moving tool
Definition: Device wherein the tool or tool-support includes a body
No. of patents: 24
Last issue date: 10/02/2007

Number	Title	Issue Date
7275898	Threading tap for cutting threads in blind holes and methods of its manufacture A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cu...	10/02/2007
7241088	Threading tap for cutting threads in blind holes and methods of its manufacture A threading tap for cutting threads in blind holes includes an elongated body with a central axis, the body having at a rear end a connector portion, and having at a front end a threading portion. The threading portion is provided with at least one helical thread-cu...	07/10/2007
7150588	Thread forming tap with a non-circular cross-section and radially extending cutting edges A thread-forming tap includes an elongated body having, at first end, a connector portion, and having at a second end, a thread-forming portion. The thread-forming portion includes at least one thread-forming helical thread exhibiting a non-circular cross-section ha...	12/19/2006
6931901	Method and apparatus for forming a threaded hole in a hydroformed part Method and apparatus are disclosed wherein a required threaded hole is formed in a hydroformed part with a single tool while the part remains in a hydroforming die cavity. In forming the threaded hole, a hole is first pierced in the wall of the part and then an annu...	08/23/2005
6589122	Thread tapping device A thread tapping device has a main seat, a rotating head, a handle rod, an adjustment rod, a pivot connector, and a pair of scrape blades. The main seat has a V-shaped groove, a bottom pivot hole, a through aperture, two connection bars, and an end block....	07/08/2003
6213693	Taper taps for pipe threads made of hard material A high durability taper tap for pipe threads which can cut threads in a pipe made of hard materials having hardness of approximately 50 HRC. The sum Σγ of the width angle of cutters is large, approximately 130°, thereby achieving high strength and rigi...	04/10/2001
6206620	Thread chasing tool and method A pivoting split thread chasing die for rethreading and cleaning damaged or inhibited studs or bolts; and a method of manufacturing the die. The identical main body halves of the pivoting split die, when assembled together with an assembly pin form a pivo...	03/27/2001
5908272	Rotational cutting tool guard apparatus A guard apparatus for a rotational tool prevents direct contact of the cutting regions by an operator of the tool. The rotational cutting tool to which this invention is particularly applicable is the type having at least a shank portion and a toothed reg...	06/01/1999
5902079	Combination die and tap A thread cutting tool is provided to simultaneously cut opposed concentric screw threads on a connector member. The tool comprises a cylindrical body with radially spaced first and second thread cutting sections and is adapted to cut threads in soft mater...	05/11/1999
5882152	Multi-bit drill A drill having an elongated body including a fluted land and a shank. The fluted land includes a plurality of radial grooves of reduced material thickness formed therein to the depth of the flutes. The grooves define discrete segments of the drill. Each s...	03/16/1999
5803676	Method and tool for repairing damaged threads A thread repair tool and method of manufacturing are disclosed, along with a method for repairing damaged threads of a bolt, stud, or the like. The thread repair tool includes a pair of chaser sections each having a threaded inner diameter to match the th...	09/08/1998
5797710	Thread forming tap A tap having a reamer edge which is provided at a chamfer part, so that when the thread forming tap is pulled out after the internal thread is formed, a seam portion present at the crest of the internal thread is cut off, whereby even in a blind hole, for...	08/25/1998
5250007	Method and apparatus for forming threads with variable pitch Apparatus and methods for forming a thread of varying pitch by utilizing a threading assembly which includes a plurality of threading elements having thread cutting or forming portions on the different elements for engaging the work piece at different loc...	10/05/1993
5222847	Tap A tap having a main body having a crest, a heel, and an outer circumference is disclosed. The tap main body has a male screw part at the crest side. At this male screw part, a plurality of grooves opening to the crest and the outer circumference of tap ma...	06/29/1993
5203652	Self-aligning tap and die wrench and universal threading tool A tap and die wrench for threading flat and round workpieces and, formed of hardened steel or a softer material with hardened steel inserts at those points sustaining torque and tensile forces during operation, provides a body member adapted for receiving...	04/20/1993
5112162	Thread milling cutter assembly A cutting tool comprised of tool hardened steel having a holder end and an opposite end. A series of axially extending slots are provided on the tool at an outer circumference of the opposite end. The slots each have a radially extending slot wall positio...	05/12/1992
5060330	Screw-thread repair tool A chasing tool for repairing screw threads, which includes a substantially prismatic body with a bottom and a top surface, having on one end of the body a transverse, notch-like recess opening into the top surface and serving as a support for the threaded...	10/29/1991
4968194	Tap chuck crank A hand crank for use on a drill press mounted chuck during a tapping operation. The crank comprises a body having an aperture which permits the crank to be installed on and in surrounding relationship to the drill press chuck body. A spring biased pin ent...	11/06/1990
4889460	Thread cleaning nut A thread cleaning nut including a nut body having a central axis, first and second spaced apart faces formed on the nut body and a central aperture extending through the nut body along a central axis between the first and second faces. A screw thread is f...	12/26/1989
4606681	Tud rethreading and cleaning device A device for rethreading and cleaning threaded pipe studs having an elongated casing having an outside surface provided with flat portions for attaching to a torquing means, which casing is provided with a straight channel therethrough shaped to allow pas...	08/19/1986
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
4466762	Tool for forming internal screw threads A thread forming tool comprising a metal cylinder having a thread tap mounted in an open-sided chamber in the cylinder so that the longitudinal axis of one set of teeth on the tap is parallel with the longitudinal center axis of the cylinder and positione...	08/21/1984
4201503	Thread reconditioning tool A tool for reconditioning or restoring the threads of externally threaded members, such as bolts, studs, and the like, includes, in one embodiment, a collet having a bore formed therethrough with a portion of the bore defining a guide surface, and a threa...	05/06/1980
4180897	Method of fabricating honeycomb heat exchanger A heat exchanger comprises a general elongated rectangular member having major side surfaces of a honeycomb configuration. The member has at least one aperture extending therethrough and along the length of said member and an inner tubular member position...	01/01/1980

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Class 408/215 - With pitch-stabilizing ridge