Filtration container assemblies and methods
A movable seal for interfacing between a first surface and a second surface includes a floating portion attached to a non-floating portion by a flexible coupling portion, wherein the non-floating portion is coupled to the first surface by nesting in a groove on the first surface, and wherein the non-floating portion forms a seal between the first and second surfaces when the first surface moves relative to the second surface in a first direction, and wherein the non-floating portion does not form a seal between the first and second surfaces when the first surface moves relative to the second surface in a second opposite direction.
1. A movable seal for interfacing between a first surface and a second surface, the movable seal comprising:
a first portion attached to a second portion, wherein the second portion is coupled to the first surface by nesting in a groove on the first surface, and wherein the first and second portions form a seal between the first and second surfaces when the first surface moves relative to the second surface in a first direction, and wherein the seal between the first and second surfaces breaks when the first surface moves relative to the second surface in a second opposite direction.
2. The moveable seal claim 1 , wherein the first and second surfaces are substantially cylindrical surfaces.
3. The moveable seal claim 2 , wherein the groove is a substantially annular groove.
4. The moveable seal claim 2 , wherein the first and second surfaces are concentric with one another.
5. The moveable seal claim 2 , wherein the first surface is continuous from a first end to a second end.
6. The moveable seal claim 2 , wherein the cross-sectional area of the substantially cylindrical first surface is substantially the same at a first end and a second end.
7. The moveable seal claim 1 , wherein the first portion is attached to the second portion by a third portion, and wherein the third portion extending between the first portion and the second portion has a predetermined length extending from a first end to a second end and a predetermined thickness.
8. The moveable seal claim 7 , wherein the first end of the third portion is coupled to the center portion of the first portion.
9. The moveable seal claim 7 , wherein the thickness of the first portion is greater than the thickness of the third portion.
10. The moveable seal claim 7 , wherein the second end of the third portion is coupled to the center portion of the second portion.
11. The moveable seal claim 7 , wherein the thickness of the second portion is greater than the thickness of the third portion.