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Class Information
Number: 411/10
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > With means to indicate application of predetermined stress-strain > Axially deformable member or portion > Deformable washer
Description: Subject matter wherein the self-contained part is in the form of an annular or cylindrical member which is altered in height to indicate the attainment, or loss of a desired degree of tension, compression, or torque.










Sub-classes under this class:

Class Number Class Name Patents
411/11 Resilient 40


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8591157 Direct load indicating fastener assembly Nov. 26, 2013
8197167 Securing mechanisms for components of a load indicating fastener Jun. 12, 2012
8192102 Load absorption system Jun. 5, 2012
8134835 Compression clamping of semiconductor components Mar. 13, 2012
7857562 Direct tension indicating washer having enhanced emission of indicating material Dec. 28, 2010
7635243 Load indicating fastener and method of manufacture Dec. 22, 2009
7473064 Load indicating fastener insert Jan. 6, 2009
7207760 Washer and fastener provided with a washer Apr. 24, 2007
7156595 Load indicating fastener insert Jan. 2, 2007
7066053 Washer, fastener provided with a washer Jun. 27, 2006
6986298 Method of and power tool for fastening objects Jan. 17, 2006
6712031 Support device for rocker arm Mar. 30, 2004
6425718 Direct multi-tension indicating washer having bumps of a first and second height Jul. 30, 2002
6250863 Washer having stressed and unstressed strain gauges Jun. 26, 2001
6135687 Direct tension indicator for embedded anchor members Oct. 24, 2000
6095733 Threaded fastener with determinable clamp load Aug. 1, 2000
5931618 Direct tension indicating washers Aug. 3, 1999
5927918 Trailer ball fastening assembly Jul. 27, 1999
5885034 Washer for use in mining Mar. 23, 1999
5882148 Apparatus for yielding support of rock Mar. 16, 1999
5769581 Direct tension indicating washers Jun. 23, 1998
5722807 Clamp load indicator Mar. 3, 1998
5667346 Direct tension indicator washer Sep. 16, 1997
5586851 Prestress-monitoring element for screw-type anchors Dec. 24, 1996
5487632 Direct tension indicator washer Jan. 30, 1996
5447362 Quick release apparatus for a bicycle Sep. 5, 1995
5385054 Fastener tension monitor Jan. 31, 1995
5370483 Direct tension indicator washer Dec. 6, 1994
5188494 Torque indicator device and method for use with a threaded fastener Feb. 23, 1993
5088866 Indicator-nut threaded coupling with load-indicating device adapted to be arranged on anchors, in particular grouted anchors for mining or the like Feb. 18, 1992
5064312 Delay stopper for a mine roof anchor and method of manufacture thereof Nov. 12, 1991
5015132 Direct tension indicator washer May. 14, 1991
4988246 Apparatus for indicating incomplete and complete fastening of screw components Jan. 29, 1991
4954018 Yield tube bolt assembly Sep. 4, 1990
4889457 Load indicator Dec. 26, 1989
4887948 Deformable washer, particularly for predetermining the minimum force needed for tightening a nut or a screw Dec. 19, 1989
4773272 Apparatus and method for measuring bolt tension in situ Sep. 27, 1988
4732517 Anti-tamper fastener shielding apparatus Mar. 22, 1988
4556350 Mine roof anchor bolt Dec. 3, 1985
4483648 Bolt tension indicating means Nov. 20, 1984
4479666 Load-line fastener Oct. 30, 1984
4408925 Cable tension meter Oct. 11, 1983
4333220 Method and apparatus for tightening an assembly including a pre-load indicating fastener Jun. 8, 1982
4310181 Load-line fastener Jan. 12, 1982
4303001 Bolt tension indicating means Dec. 1, 1981
4289061 Device and assembly for mounting parts Sep. 15, 1981
4164164 Bolt tension indicating means Aug. 14, 1979
4131050 Visual load indicator Dec. 26, 1978
4072081 Tension indicating washer unit Feb. 7, 1978
4064785 Threaded connections Dec. 27, 1977

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