Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1977-06-10
1978-05-30
Jones, Jr., James L.
Metal working
Method of mechanical manufacture
Assembling or joining
29229, 29235, B23P 1102
Patent
active
040915212
ABSTRACT:
A resilient ring-shape rod seal is to be installed in a rod seal groove in a cylinder in position to seal against a rod as it moves longitudinally with respect to the cylinder. The inside diameter of the ring-shape rod seal is the same as the nominal outside diameter of the rod. The rod seal installation tool of the invention includes three mutually parallel pins, pivotally mounted with respect to each other and designed to fit down over the ring-shape rod seal to have two outside pins situated inside of the rod seal ring and a center pin situated outside of the rod seal ring. Means are provided to pivot the outside pins out around the center pin and then toward each other to fold the rod seal in a generally C-shape configuration whereby the rod seal and tool can be inserted into the cylinder to align the rod seal with the cylinder rod seal groove. The pins are released to allow the seal to expand toward its nominal ring shape with at least part of the seal in the groove. The tool is withdrawn and the seal is seated in the groove ready to seal onto the outside surface of the rod when the rod is installed in the cylinder.
REFERENCES:
patent: 1268922 (1918-06-01), Bryan
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