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Title: Apparatus and method for pressure burst testing of a vessel

Patent ·
OSTI ID:6330767

In an apparatus for pressure burst testing of a hollow vessel, a test mandrel is described comprising: (a) a hollow sleeve having an outer end adapted to receive thereover a hollow vessel such that a portion of the vessel to be tested extends beyond the sleeve outer end; (b) an elongated drawbar disposed within the hollow sleeve; (c) at least one resiliently yieldably deformable annular member mounted on the drawbar and disposable within the vessel portion to be tested when the vessel is received over the sleeve outer end; (d) the deformable member being adapted to expand radially so as to apply expansive mechanical pressure against the interior of the vessel portion to be tested upon relative movement of the sleeve and drawbar through the pressure-generating stroke which causes relative movement of the sleeve outer end and the drawbar outer end toward one another and thereby application of compressive force against the opposite ends of the deformable member; (e) the deformable member being adapted to contract radially so as to release application of the mechanical pressure against the interior of the vessel portion to be tested.

Assignee:
Honeywell Inc., Minneapolis, MN
Patent Number(s):
US 4793179
OSTI ID:
6330767
Resource Relation:
Patent File Date: Filed date 10 Feb 1988
Country of Publication:
United States
Language:
English