Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1997-08-15
2000-04-11
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411385, 411399, F16B 2300, F16B 3506
Patent
active
060481501
ABSTRACT:
A forged, integral bolt (20) has a head, a tapered neck (22), a shank, and a plurality of plastically deformable, raised, contact surface portions (31) uniformly positioned adjacent the neck and extending axially and radially of the bolt for spreading a load applied to the bolt. Each raised portion has a base portion contiguous the neck, and an elongated, V-shaped, ridge portion raised above the base which is constructed to contact and fay with a congruent wall portion of a bolt bore (12) in a support structure. The bolt may have various shapes. (FIGS. 1-3, 10-23). The ridges may extend up onto the sides of the head. (FIG. 9). The ridge portions and base portions may be integrally forged as a pair of symmetrical, self-aligning, inserts (40) separate from, but mating with, opposite sides of the neck when a load is applied to the bolt. A doughnut-shaped, repair washer (50) for sealing enlarged holes has a plurality of teeth (53) integral with a flat or curved bottom major surface for gripping a surface which is to be sealed and grooves (51,54) which cooperate with the bolt and a nut to simultaneously seal the (52) bore at the top and bottom surfaces.
REFERENCES:
patent: 378857 (1888-02-01), Woodford
patent: 1432243 (1922-10-01), Harris
patent: 1894708 (1933-01-01), Sardeson
patent: 2037586 (1936-04-01), Olson
patent: 3241423 (1966-03-01), Davis
patent: 3255797 (1966-06-01), Attwood
patent: 3298270 (1967-01-01), Launay
patent: 3640326 (1972-02-01), Brown
patent: 4295766 (1981-10-01), Shaw
patent: 4473332 (1984-09-01), Sturdy
Lisa Donald J.
Wilson Neill
LandOfFree
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