Expanded – threaded – driven – headed – tool-deformed – or locked-thr – With means to indicate application of predetermined... – Axially deformable member or portion
Patent
1983-08-04
1986-02-25
Smith, Gary L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
With means to indicate application of predetermined...
Axially deformable member or portion
411544, F16B 3102
Patent
active
045727171
ABSTRACT:
A tension indicating device which includes at least one indicating arm and reference means carried by a stamped generally frustoconical spring washer. A relieved area in the bearing surface of the washer prevents work surface irregularities from producing erroneous tension indications. The arm and reference means may mechanically engage one another and the arm may be made separately and attached to the washer. Indications made by the arm are designed to be visually discernable from a distance.
REFERENCES:
patent: 3072093 (1963-01-01), Lanius
patent: 3153974 (1964-10-01), Canning
patent: 3169440 (1965-02-01), Taylor
patent: 3329058 (1967-07-01), Cumming
patent: 4131050 (1978-12-01), Holmes
patent: 4149446 (1979-04-01), Spengler
patent: 4293257 (1981-10-01), Peterson
patent: 4371293 (1983-02-01), Wilcox
Forsberg Jerold M.
Swick Edwin G.
Buckman T. W.
Halvorsen J. R.
Illinois Tool Works Inc.
O'Brien J. P.
Smith Gary L.
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