Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Sealing
Patent
1987-05-18
1989-01-24
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Washer structure
Sealing
411544, 411908, 52410, F16B 4302
Patent
active
047998458
ABSTRACT:
A fastening disk for use in attaching sheet material to a substrate, comprising:
REFERENCES:
patent: 3191730 (1965-06-01), Fischer
patent: 4293243 (1981-10-01), Graybeal et al.
patent: 4455804 (1984-06-01), Francovitch
patent: 4467581 (1984-08-01), Francovitch
patent: 4476660 (1984-10-01), Francovitch
patent: 4627207 (1986-12-01), Young et al.
patent: 4630422 (1986-12-01), Beneze
patent: 4686808 (1987-08-01), Triplett
Dunlop Construction Products Inc.
Wilson Neill R.
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