Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Made up of plural expansible segments or sections
Patent
1981-11-27
1984-01-17
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Made up of plural expansible segments or sections
24662, 411 45, 411 58, F16B 1304
Patent
active
044261810
ABSTRACT:
A binder for panels comprises a main binder part and a wedge member so constructed that the forced insertion of the wedge member into the main binder part causes the split portions formed in the main binder part to spread out and the expansion of the split portions serves to fasten two panels to each other. Into the main binder part set in the perforations formed in advance in the panels, the wedge member can be inserted from either of the outer surfaces of the two panels.
REFERENCES:
patent: 2271899 (1942-02-01), Miller
patent: 3053046 (1962-09-01), Fleming
patent: 4017945 (1977-04-01), Stanik
Holko Thomas J.
Nifco Inc.
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