Expansion joint for piping system
AssigneeHyspan Precision Products, Inc.
InventorMark St. J. Francis
Life of this patent
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Abstract
An expansion joint assembly for use in a piping system has a central tubular bellows and opposite first and second end bellows secured to respective opposite first and second ends of the central bellows. Outer tubular ends of the respective first and second end bellows are linked to the second and first ends, respectively, of the central bellows via first and second elongate link members. The first link member is pivotally connected to the outer end of the first end bellows at one end and secured to the second end of the central bellows at its opposite end. The second link member is pivotally connected to the outer end of the second end bellows at one end and secured to the first end of the central bellows at its opposite end.
Claims6
An expansion joint assembly for connecting first and second pipes, comprising:
- a central bellows having opposite first and second ends;
- first and second end bellows connected in series with the central bellows to the respective first and second ends of the central bellows, the first and second end bellows having outer ends adapted for connection to a respective end of the first and second pipes;
- at least one first elongate link member pivotally connected at one end to the outer end of the first end bellows for pivotal movement about a first pivot axis and connected at the opposite end to the second end of the central bellows;
- and
- at least one second elongate link member pivotally connected at one end to the outer end of the second end bellows for pivotal movement about a second pivot axis parallel to the first pivot axis, and connected at the opposite end to the first end of the central bellows.
Dependencies are inferred from the claim text.