Self-locking resilient or non-resilient element

Details Self-locking resilient or non-resilient element Self-locking resilient or non-resilient element

1986-05-15

1987-12-01

Wilson, Neill

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Threaded fastener locked to a discreet structure

Member or portion thereof located between substructure and...

411188, 411958, F16B 3924

Patent

active

047100818

ABSTRACT:
For achieving improved securing effect in use with oil or wax coated contact surfaces, a self-locking resilient or non-resilient element, such as a spring-ring or a washer, has wall-like protrusions extending on each major surface from the inner to the outer boundary, and recesses lying therebetween, the protrusions each having a plateau-like upper surface which, viewed in cross-section along the peripheral direction of the element, is curved concavely in order to form edges lying in the region of the plateau boundaries, the edges being formed as scraping edges. The wall-like protrusions extend radially in a zig-zag manner from the inner boundary to the outer boundary of each major surface, and each of the recesses lying between the protrusions forms a zig-zag-shaped continuous channel, open in the region of the inner and outer boundaries in order to achieve a drainage effect.

REFERENCES:
patent: 605788 (1898-06-01), Johnson
patent: 3078889 (1963-02-01), MacLean et al.
patent: 3752203 (1973-08-01), Hill
patent: 4290469 (1981-09-01), Nakae
patent: 4309139 (1982-01-01), Nakae
patent: 4518295 (1985-05-01), Barth

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