Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-01-16
1997-04-01
DePumpo, Daniel G.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 95, 277223, F16J 1534
Patent
active
056158939
ABSTRACT:
Sectioned mechanical sealing rings divided into at least two sealing ring segments aligned by special aligning clips are described. Each ring segment has an arcuate inner wall portion having an arcuate recess therein traversing and extending laterally on both sides of the interface between adjacent segments. An aligning clip is positioned in the recess of one segment adjacent the interface and fastened so that it projects into the recess on the other side of the interface. The clips are U-shaped and the projecting U-shaped portions have essentially the same outer width as the width of the recess. When not inserted into the recess the legs of the clips diverge so that when installed in the recess, the legs lie flat and are tensioned against the walls defining the recess. By ensuring proper alignment of the segments, the clips minimize the possibility of damage to the sealing ring during installation, facilitate the overall assembly operation, and reduce the possibility of fluid leakage through the mechanical seal due to improper alignment. Moreover, the clips avoid the need for altering one or more of the co-engaging interfacial surfaces of the ring segments such as by boring, machining or otherwise creating holes or complex interlocking configurations in such surfaces.
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DePumpo Daniel G.
Power Packing Company, Inc.
Sieberth John F.
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