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Class Information
Number: 411/423
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Externally threaded fastener element, e.g., bolt, screw, etc. > Thread or shank structure > Truncated thread
Description: Subject matter wherein the crest of the ridge has its apex cut, or removed, and replaced by a planar surface.










Patents under this class:

Patent Number Title Of Patent Date Issued
8554303 Magnetic resonance RF coil assembly for imaging of the cervical region Oct. 8, 2013
7565078 Thread structure for an optical lens Jul. 21, 2009
7252150 Downhole tool Aug. 7, 2007
6863483 Screw provided with self-locking thread Mar. 8, 2005
6796761 Bolt and nut Sep. 28, 2004
6685411 Bolt Feb. 3, 2004
6565302 Thread forming screw May. 20, 2003
6454506 Anchor bolt with an outer thread having thread turns with different cross-sectional shape Sep. 24, 2002
6322307 Fixing anchor Nov. 27, 2001
6296432 Bolt with extension to prevent thread misalignment Oct. 2, 2001
6290445 Non-removable structural threaded fastener with threads of lesser outer diameter than the shank and method of forming same Sep. 18, 2001
6162001 Anti-cross threading fastener Dec. 19, 2000
6155761 Short point anti-cross-threading design Dec. 5, 2000
5997231 Anti-cross threading fastener Dec. 7, 1999
5964768 Tapered bone screw with continuously varying pitch Oct. 12, 1999
5865584 Plywood fastener for affixing plywood to light gauge sheet metal Feb. 2, 1999
5836731 Anti-cross threading fastener Nov. 17, 1998
5730566 Anti-cross threading fastener Mar. 24, 1998
5722808 Threaded fastener system Mar. 3, 1998
5580199 Fastening screw Dec. 3, 1996
5340254 Thread forming screw for forming an internal thread in a low ductility material Aug. 23, 1994
5060740 Screw thread coupling Oct. 29, 1991
5052871 Connected screw threads Oct. 1, 1991
4958973 Internal-pressure-bearing female screw Sep. 25, 1990
4861210 Threaded element forming for example a screw, and assembly of pieces obtained with the aid of this element Aug. 29, 1989
4815360 Rod-piston connection Mar. 28, 1989
4799844 Elliptical thread design Jan. 24, 1989
4610064 Device for spreading flanges Sep. 9, 1986
4600224 Tubular connection having a chevron wedge thread Jul. 15, 1986
4600225 Tubular connection having a parallel chevron thread Jul. 15, 1986
4549754 Tool joint Oct. 29, 1985
4527932 Self-tapping screw Jul. 9, 1985
4408721 Fitting to combine air and pressurized water Oct. 11, 1983
4334815 Fastener with a modified thread form Jun. 15, 1982
4324036 "Method of making orthodontic screw-type device" Apr. 13, 1982
4288189 Threaded insert Sep. 8, 1981
4189975 Screwed connection having improved fatigue strength Feb. 26, 1980
4179976 Extruding and tapping screw and blank for manufacture of such screw Dec. 25, 1979
4040327 High fatigue screw threads Aug. 9, 1977











 
 
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