O-ring insertion tool and method
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United States of America Patent
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Nov 10, 2015
Issued Date -
N/A
app pub date -
Jun 24, 2010
filing date -
Jun 24, 2009
priority date (Note) -
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Abstract
An O-ring insertion tool is disclosed herein which holds and inserts an O-ring into a cap for releasably securing a dental appliance to, for example, a dental attachment assembly secured in the mouth of a patient. The tool contains a driver having a central portion and at least one end portion with resilient prongs designed to push an O-ring through a bore in a bushing sleeve sized at one end to match the entrance of the cap. The bore has a tapered, frustoconical portion. The prongs fit into the larger end of the bore in which the O-ring is positioned and engage and advance the O-ring through the bore. The O-ring is uniformly compressed as it advances through the frustoconical portion of the bore, and is then pushed out of the second end of the bore and into position in the cap.
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