1
Horace D Holmes: Tapping tool for making vibration resistant prevailing torque fastener. Krass & Young, January 1, 1980: US04181457 (59 worldwide citation)

A tapping tool for making a vibration-resistant prevailing torque fastener combination comprising a conventional first element having a standard thread form with first flank angles and a modified second element having a thread form characterized by second steeper flank angles over the entire length ...


2
Dino J Emanuelli: Threading tap. Greenfield, Dickstein Shapiro & Morin, November 24, 1987: US04708542 (56 worldwide citation)

An improved tap has a thread cutting portion over which there is a Titanium nitride coating. The Titanium nitride coating has a Rockwell C hardness of at least 70. The body portion of the tap underlying the Titanium nitride coating has a Rockwell C surface hardness of at least 65. This enables the b ...


3
Masatada Araki, Yukio Tanaka: Cutting tool. Nippon Oil and Fats, Parkhurst & Oliff, March 20, 1984: US04437800 (56 worldwide citation)

A cutting tool having a high wear resistance is disclosed. The cutting tool consists of a plate-shaped body comprising a sintered cermet layer and a sintered body layer containing high density boron nitride or diamond, said sintered cermet layer constituting the center portion of the plate-shaped bo ...


4
Peder Von Holst, Josef Giessler: Threading tap. Sandvik, Burns Doane Swecker & Mathis, January 30, 1996: US05487626 (47 worldwide citation)

A threading tap comprises a cylindrical shaft and a threading portion. At least the threading portion comprises a compound material comprising a core of high speed steel or tool steel and a cover of "Coronite".RTM., i.e., a hard material with 30 to 70% by volume of submicronic hard materials in the ...


5
James T Hartford, Laszlo Frecska: Thread milling cutter assembly. Advent Tool and Manufacturing, Charles F Meroni Jr, May 12, 1992: US05112162 (42 worldwide citation)

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 positioned so as to extend in a plane that intersect ...


6
Koichi Asakura, Makoto Demura, Takenori Matsumoto: Thread cutting machine with synchronized feed and rotation motors. Brother Kogyo Kabushiki Kaisha, Finnegan Henderson Farabow Garrett & Dunner, November 7, 1989: US04879660 (42 worldwide citation)

A thread cutting machine is provided with a control system in which, according to one aspect, the rotation of the spindle is controlled in the synchronous manner following up the feed amount of the spindle head and the rotation instruction is computed in accordance with the feed deviation, In anothe ...


7
Dennis P Flolo: Thread mill having multiple thread cutters. Tool Flo Manufacturing, Browning Bushman, February 23, 1999: US05873684 (41 worldwide citation)

A milling tool 8 includes a tool holder 10 for housing multiple thread cutting inserts 24 for precise milling of threads on a workpiece. The tool holder 10 is rotatable in an orbitable path spaced radially from a milling axis and is simultaneously rotatable about its own axis for repeatedly bringing ...


8
Edward B Palm: Method of and apparatus for thread mill drilling. Manuel C Turchan, Remy J VanOphem, John VanOphem, July 4, 1995: US05429459 (40 worldwide citation)

A threaded hole (20) in a workpiece (22) is formed by rapidly spinning an elongated tool (24) having a drill point (64) at one end, at least one longitudinally extending flute (80) having thread milling faces (84) for milling the thread to be formed, and wherein the tool (24) is first moved axially ...


9
Richard Benson: Thread cutting tool. Stellram, Wenderoth Lind & Ponack, March 24, 1992: US05098232 (39 worldwide citation)

A thread-cutting tool comprises a shank 10 for attachment to the spindle of a milling machine, the forward end portion of which shank is formed with a flat 12 recessed to provide a pocket for a flat cutting insert 11. The insert, which is triangular in this instance, has one edge formed with a line ...


10
John A Engelhardt: Method of making a dynamic tension bone screw. Boehringer Mannheim Corporation, Perman & Green, August 14, 1990: US04947502 (38 worldwide citation)

A dynamic bone fixation screw for rejoining fracture fragments of a bone to their approximate original mutual dispostion. It includes a threaded distal end member for threaded engagment with one of the bone fragments and a head member at a proximal end for engagement with another of the bone fragmen ...



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