Expanded – threaded – driven – headed – tool-deformed – or locked-thr – With means to indicate application of predetermined... – Axially deformable member or portion
Patent
1996-02-06
1997-09-16
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
With means to indicate application of predetermined...
Axially deformable member or portion
411 5, 411 14, F16B 3102
Patent
active
056673469
ABSTRACT:
A pre-load indicating washer for properly tensioning a joint held together by an externally threaded member and an internally threaded member. The pre-load indicating washer has a plurality of protuberances, struck and partially sheared from the annular body of the washer, which are pushed under load back into a corresponding number of indentations in the annular body which are formed when the protuberances are formed. The protuberances of the pre-load indicating washer are curved in outline with no portion of the protuberances extending radially outward beyond the outer periphery of the bearing surface of an externally threaded member when the pre-load indicating washer is positioned adjacent the externally threaded member, or radially outward beyond the outer periphery of the bearing surface of an internally threaded member when the pre-load indicating washer is positioned adjacent the internally threaded member.
REFERENCES:
patent: 2570863 (1951-10-01), Rowe
patent: 3187621 (1965-06-01), Turner
patent: 3285120 (1966-11-01), Kartiala
patent: 3512447 (1970-05-01), Vaughn
patent: 3534651 (1970-10-01), Belfiglio
patent: 3890876 (1975-06-01), Dahl
patent: 4020734 (1977-05-01), Bell
patent: 4518295 (1985-05-01), Matuschek
patent: 4692076 (1987-09-01), Herb
patent: 4773272 (1988-09-01), Trungold
patent: 4887948 (1989-12-01), Calmettes
patent: 4889457 (1989-12-01), Hageman
patent: 5015132 (1991-05-01), Turner et al.
patent: 5370483 (1994-12-01), Hood et al.
patent: 5487632 (1996-01-01), Hood et al.
Turner F. Jonathan M.
Wilson Neill R.
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