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US 8,007,216 B2Granted
Plastic threaded insert
AssigneeAJR Polytron, Inc.
InventorsMilton I. Ross, A. Jason Ross
Life of this patent
Estimating the term…
Abstract
The present invention relates to an insert comprising a tubular plastic body having a hollow, axially extending threaded interior, and a plurality substantially parallel ribs extending radially outward from the plastic body and along the majority of the length of the insert. The insert is capable of threadable engagement with a threaded fastener, such as a crew, to attach a base to a component.
Claims15
A threaded insert for insertion into a plastic base comprising:
- a hollow tubular plastic body defining an interior wall, an exterior wall, a top side and a bottom side;
- said interior wall being threaded;
- said exterior wall having a plurality of plastic ribs extending radially outward from the exterior wall and extending the majority of the length of the plastic body, wherein the heat deflection temperature (HDT) of the plastic material of the threaded insert is about 50 to about 100° F. greater than the HDT of the plastic material of the base.
A method for inserting a threaded insert into a recess in a plastic base, said threaded insert comprising
- a hollow tubular plastic body defining an interior wall, an exterior wall, a top side and a bottom side;
- said interior wall being threaded;
- said exterior wall having a plurality of plastic ribs extending radially outward from the exterior wall and extending the majority of the length of the plastic body, wherein the heat deflection temperature (HDT) of the plastic material of the threaded insert is about 50 to about 100° F. greater than the HDT of the plastic material of the base;
- said method comprising the step of inserting the threaded insert into the recess while applying sufficient ultrasonic energy to allow the material of the plastic base immediately surrounding the recess to deform upon insertion of the threaded insert, but without deforming the ribs of the threaded insert.
1 more element
Dependencies are inferred from the claim text.