Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Axially resilient
Patent
1995-02-24
1996-08-20
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Washer structure
Axially resilient
411156, 411916, F16B 3924, F16B 4302
Patent
active
055473261
ABSTRACT:
A spring washer for the securing of screws, nuts and the like is provided with an essentially ring-shaped washer body of a determined thickness having a washer top side and a washer under side, the washer under side being subdivided into an outer ring surface and an inner ring surface. The washer in an unstressed state rests with the outer edge of the outer ring surface on a flat base and the outer ring surface and the inner ring surface forms an acute angle with this base. The washer under side (2) is subdivided by a circular groove (3) into the outer ring surface (4) and the inner ring surface (5) and the spring washer is shaped in such a way that the outer ring surface (4) is arched inwards and forms a smaller acute angel (.alpha.) with the flat base (7) than the inner ring surface.
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patent: 5112178 (1992-05-01), Overhues et al.
patent: 5188441 (1993-02-01), Rugel
Teckentrup GmbH & Co. KG
Wilson Neill R.
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