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Class Information
Number: 411/14.5
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Tensioned along the longitudinal axis by a coaxial force applying device (e.g., mechanical tensioner)
Description: Subject matter wherein the fastener in which an apparatus applies a stress or pull parallel to an imaginary line through the longest dimension of the bolt, screw, nail, rivet, etc. and the apparatus is then removed.










Patents under this class:

Patent Number Title Of Patent Date Issued
8650757 Methods for preloading a bearing and aligning a lock nut Feb. 18, 2014
8616094 Method for tensioning screw bolts, as well as screw bolt and screw bolt tensioning device for carrying out the method Dec. 31, 2013
8556557 Hydraulic nut and improved seals therefor Oct. 15, 2013
8523444 Ring for a hydrostatic or hydrodynamic bearing, a hydraulic machine equipped with such a ring, and a method of mounting such a ring on a shaft Sep. 3, 2013
8480340 Hydraulic nut with alarm systems and variable arrangement of advancement and unit total advancement screws through head rotation with flange sensors Jul. 9, 2013
8359733 Methods for preloading a bearing Jan. 29, 2013
8353648 Load-bearing ring for hydraulic fasteners Jan. 15, 2013
8328482 Hydraulic foundation bolt tensioner Dec. 11, 2012
8316530 Systems for preloading a bearing and aligning a lock nut Nov. 27, 2012
8277206 Device and method for maintaining a static seal of a high pressure pump Oct. 2, 2012
8266781 Hydraulic tensioning jacks Sep. 18, 2012
8261421 Method for setting up and controlling a hydraulic tensioner for applying a preload on one or a plurality of bolts Sep. 11, 2012
7997840 Self locking tensioner Aug. 16, 2011
7722302 Self locking tensioner May. 25, 2010
7637706 Pre-stressing apparatus using a split threaded fastener Dec. 29, 2009
7559135 Method and apparatus for preloading a bearing Jul. 14, 2009
7389579 Apparatus for providing a load on a bearing, the bearing having an inner race mounted to a shaft and the bearing retained by a nut Jun. 24, 2008
7338240 Double nut for the controlled fixing of a component by means of a belt connection Mar. 4, 2008
7195439 Tightening member Mar. 27, 2007
7140824 Tensioning hydraulic nuts Nov. 28, 2006
7066699 Tensioning apparatus and method Jun. 27, 2006
7063490 Hydraulic nut, device and method for mounting or dismounting a hollow article Jun. 20, 2006
7008156 Load transfer apparatus Mar. 7, 2006
6840726 Tensioning apparatus and method Jan. 11, 2005
6715975 Tension control arrangement for a bolt Apr. 6, 2004
6685406 Perforated nut tensioning system Feb. 3, 2004
6506007 Fastening bolt Jan. 14, 2003
6450064 Resettable separation mechanism with anti-friction bearings Sep. 17, 2002
6381827 Method for maintaining a clamping force between bolted parts in high temperature May. 7, 2002
6263764 Jackbolts for multi jackbolt tensioners Jul. 24, 2001
6254323 Bolt for connecting two parts with one another, and fastening device provided with the bolt Jul. 3, 2001
6254322 Bolt with a bolt member, a washer and a sleeve for applying forces to the bolt member and the sleeve Jul. 3, 2001
6199453 High temperature bolting system Mar. 13, 2001
6113157 Adjustable ball joint connector Sep. 5, 2000
6077008 Safety device for preloaded bolts Jun. 20, 2000
5603595 Flywheel nut separable connector and method Feb. 18, 1997
4968201 Adaptor for screwing or unscrewing threaded connection elements Nov. 6, 1990











 
 
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