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US 9,802,162 B2Granted
Leak testing of a pressure vessel
AssigneeGambro Lundia AB
InventorsHelmut Hildwein, Peter Wiegers, Franz Brohm
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AssigneeGambro Lundia AB
InventorsHelmut Hildwein, Peter Wiegers, Franz Brohm
Estimating the term…
An end cap for a pressure vessel has at least one part for connecting the end cap to a housing. The at least one part comprises a number of recesses. The recesses are arranged to form at least one fluid passage between an inside and an outside of the end cap when the end cap is plugged on the housing. A housing for a pressure vessel has at least one counterpart for connecting an end cap to the housing by engaging a part of the end cap. The at least one counterpart comprises a number of recesses. The recesses are arranged to form at least one fluid passage between an inside and an outside of the housing when the end cap is plugged on the housing. A method for leak testing a pressure vessel and a method for checking a connection between at least one end cap and a housing of a pressure vessel for leak tightness are also described.
In combination, an end cap and a housing having an open end, the end cap to close the open end of the housing, one of the end cap and housing comprising a slot and the other of the end cap and housing comprising a key, the key and slot together forming a key and slot joint when the end cap and housing are assembled, n first recesses, n an integer, the n first recesses arranged with an angular spacing of about 360°/n to each other around the slot of the end cap, and n second recesses arranged with an angular spacing of about 360°/n to each other around the slot, each second recess being arranged adjacent, but offset perimetrally of the housing and end cap from a respective first recess to provide a respective fluid passage which extends at least partially perimetrally of the housing and end cap between an inside and an outside of the assembled end cap and housing, wherein n is an integer greater than 1.
Dependencies are inferred from the claim text.