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US 4,288,189 AGranted
Threaded insert
AssigneeYardley Products Corp.
InventorTheodore Ziaylek, Jr.
Life of this patent
Estimating the term…
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AssigneeYardley Products Corp.
InventorTheodore Ziaylek, Jr.
Estimating the term…
A threaded insert and method for making same which is particularly usable when fixedly positioned within a base material which itself is molded about the threaded insert, the threaded insert comprising a generally cylindrical body which is preferably knurled about the exterior thereof to provide a means for fixed securement between the insert and the surrounding base material, the cylindrical body including a central bore extending part way or completely through the insert, the central bore being threaded such that each individual thread includes a burnished end thereof such as to provide an arcuate surface immediately adjacent the mold or immediately adjacent the pin extending through the central bore to prevent the seepage of base material when under pressure during molding past the threads to foul the threads by having base material therein, the dimension of the burnishing on the tips of the threads being of such small dimension that the first placement of a threaded male member into the threaded central bore of the insert will immediately scrape off the burnished edges and thereby assume the normal threaded configuration, the threaded inserts being of either a closed end or open ended configuration which may further include a burnished edge at the uppermost edge of the outer knurled surface to also prevent the seepage of injected base material between this upper edge of the external surface and the head area of the pin.
A threaded insert, particularly usable fixedly positioned in a base material which is molded, comprising a generally cylindrical body including a securement means about the outer surface thereof to facilitate the securing of the threaded insert to the surrounding molded base material, said cylindrical body defining a vertically extending central bore therethrough including a thread means on the walls thereof, each of said thread means comprising:
A threaded insert, particularly usable fixedly positioned in a base material which is molded, comprising a generally cylindrical body including a securement means about the outer surface thereof to facilitate the securing of the threaded insert to the surrounding molded base material, said securement means comprising a knurled surface about the outside of said cylindrical body, said cylindrical body defining a vertically extending central bore therethrough including thread means on the walls thereof, each of said thread means comprising:
Dependencies are inferred from the claim text.