Securing a second object to a first object
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United States of America Patent
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Aug 10, 2021
Grant Date -
Jun 6, 2019
app pub date -
Jul 21, 2017
filing date -
Jul 21, 2016
priority date (Note) -
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Abstract
A method of anchoring a connector in a first object includes providing the connector, the connector having a liquefiable material that is liquefiable by mechanical vibration, such as a thermoplastic material, bringing the connector into contact with low density layer that has an arrangement of discrete elements and gas-filled (empty) spaces between the discrete elements, pressing the connector against the low density layer and coupling mechanical vibration energy into the connector to cause the connector to penetrate into the low density layer to deform the discrete elements, until a flow portion of the liquefiable material becomes flowable and is caused to interpenetrate spaces between the deformed discrete elements so that an intertwined structure of the liquefiable material and the deformed discrete elements results, and stopping the mechanical vibration energy and causing the flow portion to re-solidify to anchor the connector in the low density layer.
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