Dissolution tester

Details Dissolution tester Dissolution tester

2008-07-08

2008-07-08

Williams, Hezron E. (Department: 2856)

Measuring and testing

Testing of material

C073S865600, C366S241000, C366S244000, C422S224000

Reexamination Certificate

active

11383577

ABSTRACT:
A dissolution tester comprising: a water-tank lid which is provided with a retaining hole having an inner diameter that is slightly larger than the outer diameter of the of the vessel and that is slightly smaller than the outer diameter of the flange of the vessel, and which holds the vessel at the retaining hole; a vessel lid which has a tapered portion having a bottom diameter that is smaller than a top diameter thereof; and a lid-moving shaft which is suspended from a lower part of the head to move up and down together with the vessel lid, when the vessel lid is lowered using the lid-moving shaft to cause the tapered portion of the vessel lid to come into contact with the opening of the vessel, the vessel is made to move such that the center axes of the lid-moving shaft and the vessel are aligned.

REFERENCES:
patent: 5076107 (1991-12-01), Timmermans et al.
patent: 5403090 (1995-04-01), Hofer et al.
patent: 6962674 (2005-11-01), Dean et al.
patent: 2002/0051734 (2002-05-01), Dean et al.
patent: 2000-283977 (2000-10-01), None

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