Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Multiple prong – e.g. – nailing plate – staple – etc.
Patent
1980-08-30
1982-08-10
Kee Chi, James
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
Multiple prong, e.g., nailing plate, staple, etc.
52715, 52DIG6, 403405, F16B 500, F16B 1500
Patent
active
043435807
ABSTRACT:
A structural joint for bearing a structural load is formed by a pair of wooden members fastened together by at least one metal connector plate. The connector plate is formed from a metal plate having a plurality of pairs of teeth punched therefrom. The teeth are punched from the plate so as to project in a direction substantially perpendicular to the plate. Each pair of teeth is struck so as to leave a corresponding longitudinally extending slot between the teeth. Each of the teeth has a knife edge portion that extends from the plate. This knife edge portion is thinner than the remaining portion of each tooth and has a sharp edge with a cross-sectional angle of less than 20.degree., preferably 8.degree. to 12.degree., for facilitating penetration of each of the teeth into the wooden members to be secured together. These knife edge portions of the teeth are made by a metal forming process which serves to shape such portion of the teeth and simultaneously widen and elongate each tooth.
REFERENCES:
patent: 3049042 (1962-08-01), De Lynn
patent: 3603197 (1971-09-01), Wood
patent: 3633454 (1972-01-01), Schmitt
patent: 3703304 (1972-11-01), Lossee
patent: 3951033 (1976-04-01), Moehlenpah
patent: 4165672 (1979-08-01), Jureit et al.
Kelly Robert H.
Moyer Anthony M.
Chi James Kee
Gang Nail Systems, Inc.
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