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
1992-06-25
1995-05-02
Gall, Lloyd A.
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...
411180, 411453, F16B 3700
Patent
active
RE0349283
ABSTRACT:
A screw threaded insert to be installed in for example thermoplastic material by ultrasonic vibrations applied to the insert is double-ended and comprises a main helically ribbed portion separated from a minor portion formed with teeth or projections aligned with helical ribs, and a pilot portion. The pilot portion is to locate the insert in a performed bore in the required orientation of insertion, the toothed portion displaces material in complementary grooves, so as to facilitate travel of the insert into the material and ensure good filling of the inter-rib spaces.
REFERENCES:
patent: D287820 (1987-01-01), Bullen et al.
patent: D323287 (1992-01-01), Brunetti
patent: D323288 (1992-01-01), Brunetti
patent: 475407 (1892-05-01), Marsh
patent: 1022106 (1912-04-01), Murphy
patent: 3129444 (1964-04-01), Kahn
patent: 3130503 (1964-04-01), Rosan
patent: 3242962 (1966-03-01), Dupree
patent: 3727254 (1973-04-01), Tildesley
patent: 4046181 (1977-09-01), Barnsdale
patent: 4818165 (1989-04-01), Shirai
patent: 4842462 (1989-06-01), Tildesley
Dodge Heli-Coil Designer's Manual; .COPYRGT.1984.
Thermosonics Corp. advertisement circa 1985 of Symmetrisert II.
Modern Plastics Jun. 1988, p. 355; advertisement of UNISERT.
Gall Lloyd A.
P.S.M. International PLC
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