USA As Represented by Secretary of the Navy

Jonathan M Ferreira

Stanley J Olson

Antonio M Amaral

The insertion tool is used to insert an oversized O-ring into a groove, such as a internal groove in an seal housing. The insertion tool includes a base for supporting the housing and an O-ring support extending into the housing and having a top support surface generally aligned with the groove. The O-ring is generally held into position proximate the groove using holding pins around which the O-ring is looped. Pie shaped segments are positioned onto the O-ring support between the holding pins to secure respective sections of the O-ring into the groove. Radial pushers are positioned in spaces between each of the segments, and a retainer ring is disposed over the segments and radial pushers. A central pusher rod extends through a hole in the O-ring support and base, and a cam plunger engages cam surfaces on the radial pushers. The holding pins are removed and movement of the cam plunger causes the radial pushers to move radially, thereby completely inserting the O-ring into the groove.

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Swansea, MA, United States of America

Jonathan M Ferreira