Measuring and testing – With fluid pressure – Porosity or permeability
Patent
1983-12-27
1985-12-17
Levy, Stewart J.
Measuring and testing
With fluid pressure
Porosity or permeability
73 41, G01N 1508
Patent
active
045585865
ABSTRACT:
Apparatus for stabilizing the pressure of air which is admitted into a cigarette testing device has a relatively large cylindrical vessel one end wall of which has an inlet receiving compressed air from a source by way of several pressure reducing valves and a flow restrictor. The inlet has a large number of openings and is surrounded by a first outlet which is also formed with a large number of openings and allows the major part of admitted air to escape from the vessel. The other end wall of the vessel has a single opening for admission of testing fluid into the testing device. The cross-sectional area of the passage which is defined by the flow restrictor for the flow of air into the vessel is a small fraction of the combined cross-sectional area of openings which form the first outlet, and the combined cross-sectional area of the openings which form the first outlet is a large multiple of the cross-sectional area of the second outlet. The vessel is filled with a diffusor material, such as a series of sieves, a mass of foamed plastic material and/or a mass of fibers. The quantity of air which can be stored in the vessel greatly excess the quantity of air which is required by the testing device for the testing of a cigarette.
REFERENCES:
patent: 3412856 (1968-11-01), Esenwein
patent: 3426582 (1969-02-01), McArthur et al.
patent: 3543564 (1970-12-01), Heitmann et al.
patent: 3555883 (1971-01-01), Heitmann
patent: 4090826 (1978-05-01), Hinzmann
patent: 4121595 (1978-10-01), Heitmann et al.
patent: 4154090 (1979-05-01), Heitmann et al.
patent: 4247754 (1981-01-01), Baier
patent: 4281670 (1981-08-01), Heitmann et al.
patent: 4282889 (1981-08-01), Dahlgrun
Heitmann Uwe
Muller Heidi
Hauni-Werke Korber & Co. KG.
Kontler Peter K.
Levy Stewart J.
Roskos Joseph W.
LandOfFree
Apparatus for stabilizing the pressure of gaseous testing fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for stabilizing the pressure of gaseous testing fluid , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for stabilizing the pressure of gaseous testing fluid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2169289