Method and apparatus for leak testing closed containers

Details Method and apparatus for leak testing closed containers Method and apparatus for leak testing closed containers

2005-01-11

2005-01-11

Williams, Hezron (Department: 2856)

Measuring and testing

With fluid pressure

Leakage

C073S045400, C073S052000

Reexamination Certificate

active

06840087

ABSTRACT:
Leak testing a closed container with at least one flexible wall area is performed with the method and apparatus wherein a biasing arrangement compresses or expands the container under test. A biasing force is monitored with a force detector applicable to the wall of the container. The force detector generates an electric output first biasing force signal at a first po9int in time which is stored for comparison with the monitored biasing force signal at a second subsequent point in time to generate a different signal as a leak indicative signal. A difference signal is generated at the first point in time from the first force measuring signal stored and the first force measuring signal. This latter difference signal is stored as a zero offset signal which is used to compensate zero offset of the generated difference signal.

REFERENCES:
patent: 3837215 (1974-09-01), Massage
patent: 4107997 (1978-08-01), Snaper
patent: 4449396 (1984-05-01), Bzdula
patent: 4649740 (1987-03-01), Franklin
patent: 4715215 (1987-12-01), Perhach et al.
patent: 4747299 (1988-05-01), Fox et al.
patent: 4756184 (1988-07-01), Reishus et al.
patent: 4771630 (1988-09-01), Croce et al.
patent: 4862732 (1989-09-01), Raymond et al.
patent: 4930345 (1990-06-01), Bausch
patent: 4955226 (1990-09-01), Beaty et al.
patent: 5105654 (1992-04-01), Maruyama et al.
patent: 5195360 (1993-03-01), Knigge
patent: 5528925 (1996-06-01), Sherepa et al.
patent: 5533385 (1996-07-01), Frievalt
patent: 5542288 (1996-08-01), Fenlon
patent: 5767392 (1998-06-01), Belcher et al.
patent: 5915270 (1999-06-01), Lehmann
patent: 5962776 (1999-10-01), Lehmann
patent: 6082184 (2000-07-01), Lehmann
patent: 6202476 (2001-03-01), Fenlon
patent: 6557395 (2003-05-01), Lehmann
patent: 0 619 015 (1997-10-01), None
patent: 76 13948 (1977-09-01), None
patent: 2 059 381 (1981-04-01), None
patent: 9726521 (1997-07-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for leak testing closed containers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for leak testing closed containers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for leak testing closed containers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3422720