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Class Information
Number: 470/204
Name: Threaded, headed fastener, or washer making: process and apparatus > Implement, e.g., die, etc. > Tap > Thread swage
Description: Subject matter wherein the device is capable of forming screw threads by shaping cold metal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7927221 |
Tool and method for the production of a thread |
Apr. 19, 2011 |
| 7815512 |
Thread forming tap and method for manufacturing the same |
Oct. 19, 2010 |
| 7575520 |
Tap and a method of tapping |
Aug. 18, 2009 |
| 7399231 |
Tool and method for producing a thread in a tool |
Jul. 15, 2008 |
| 7354350 |
Tools and methods for finishing a previously created thread without cutting |
Apr. 8, 2008 |
| 7112143 |
Thread former or tap |
Sep. 26, 2006 |
| 6688988 |
Looking thread cold forming tool |
Feb. 10, 2004 |
| 6685573 |
Thread forming tap |
Feb. 3, 2004 |
| 6514148 |
Thread rolling tap |
Feb. 4, 2003 |
| 6353989 |
Method of making recesses in metallic workpieces for use in torque transmitting apparatus |
Mar. 12, 2002 |
| 6217267 |
Cold forming tap having internal finish cutting edge and method of producing the same |
Apr. 17, 2001 |
| 5035019 |
Cold-forming tap |
Jul. 30, 1991 |
| 4826377 |
Self-locking fastener and tool for making same |
May. 2, 1989 |
| 4645396 |
Wood-metal drill screw |
Feb. 24, 1987 |
| 4539832 |
Hole sizing tool |
Sep. 10, 1985 |
| 4534690 |
Assymetrically shaped thread forming screw and method of making same |
Aug. 13, 1985 |
| 4491002 |
Method for forming on workpiece resilient thread having closed helical cavity inside the thread |
Jan. 1, 1985 |
| 4486135 |
Tapping screw |
Dec. 4, 1984 |
| 4409698 |
Tap for pressing elastic thread profiles |
Oct. 18, 1983 |
| 4351626 |
Self-locking threaded fastener |
Sep. 28, 1982 |
| 4315340 |
Method and apparatus for making a self-thread creating fastener |
Feb. 16, 1982 |
| 4271554 |
Combination drill and tap tool |
Jun. 9, 1981 |
| 4259889 |
Thread tapping form |
Apr. 7, 1981 |
| 3942406 |
Slab-sided self-tapping screw |
Mar. 9, 1976 |
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