Measuring and testing – With fluid pressure – Leakage
Reexamination Certificate
2004-12-02
2008-11-11
Williams, Hezron E. (Department: 2856)
Measuring and testing
With fluid pressure
Leakage
Reexamination Certificate
active
07448256
ABSTRACT:
A system and a method for determining the leakproofness of an object having a first cavity. The system includes a closed chamber having a second cavity arranged to envelope the object, an evacuator for lowering the pressure inside one of the cavities, a supply for supplying a tracer gas into the one of the cavities rendered the higher pressure, a detector sensitive to the tracer gas and an introducer for introducing a transport gas into the one of the cavities rendered the lower pressure. Furthermore, the evacuator is arranged to compress arriving gas to the ambient pressure of the chamber and to communicate with the detector, which is suited for operation at the ambient pressure of the chamber. The tracer gas includes hydrogen.
REFERENCES:
patent: 3762212 (1973-10-01), Morley et al.
patent: 4754638 (1988-07-01), Brayman et al.
patent: 5150605 (1992-09-01), Simpson
patent: 5386717 (1995-02-01), Toda
patent: 5553483 (1996-09-01), Armentrout et al.
patent: 5767391 (1998-06-01), Wong
patent: 5831147 (1998-11-01), Hoath
patent: 5939619 (1999-08-01), Achter et al.
patent: 6050133 (2000-04-01), Achter et al.
patent: 6314794 (2001-11-01), Seigeot
patent: 6460405 (2002-10-01), Mayer et al.
patent: 6609414 (2003-08-01), Mayer et al.
Enquist Fredrik
Jenneus Per
Fitzgerald John
Franklin Eric J.
Sensistor Technologies AB
Venable LLP
Williams Hezron E.
LandOfFree
System and method for determining the leakproofness of an... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for determining the leakproofness of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for determining the leakproofness of an... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4036731