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US 9,040,293 B2Granted
Cell culture dish
AssigneeEppendorf AG
InventorsNico Gülzow, Thomas Reimann, Jochen Beese, Ute Kowanz, Yvonne Radacz
Life of this patent
Estimating the term…
Abstract
A cell culture dish, comprising: a dish with a bottom wall and a circumferential side wall standing upward from the same, a lid, which sits sealingly on the side wall in an aeration position, and means for holding the lid on the dish above the sealing position in an aeration position in which there is an aeration gap between side wall and lid, wherein these means are adapted to be overcome by pressing the lid and the dish together in order to bring the lid from the aeration position into the sealing position.
Claims11
A cell culture dish, comprising:
- a dish (2) with a bottom wall (4) and a circumferential side wall (5) standing upward from the same,
- a lid (3), having a lid side wall (10) which in a sealing position sits sealingly on the side wall (5), the lid side wall (10) is extending over the side wall of the dish (4),
- contact surfaces of lid (3) and side wall (5) being formed as sealing seat (13, 14) and defining frictionally fitting means, which releasably retains the lid on the dish in the sealing position,
- the sealing seat of the lid (3) being formed by a conical section (11) on a projecting sealing region circulating on the inside perimeter of the lid side wall (10) and the sealing seat of the side wall (5) being formed by a circumferential conical section (12) disposed on an undercut (14) on the outer perimeter of the side wall (5),
- the side wall (5) of dish (2) has at least one laterally projecting spring tongue (7) onto which a lid side wall (10) in the aeration position of the lid (3) is settable, in the aeration position an aeration gap is formed between the side wall (5) and lid (3),
- the conical sections (11, 12) and the undercut (14) being designed such that the sealing position can be achieved by pressing the lid (3) onto dish (2)
- whereby the lower edge of the lid side wall (10) deflects the spring tongues (7) in an axial direction, at the same time the side wall (5) is radially somewhat compressed and the lid side wall (10) is radially somewhat widened and finally the projecting sealing region (13) is snapped below the undercut (14) and the conical sections (11, 12) sit sealingly close to each other in the sealing position,
- wherein the sealing is effected by a clamping force between the undercut (14) and the projecting sealing region (13), and further wherein the at least one spring tongue (7) does not have a holding function in the sealing position, and
- the side wall of the lid being designed such that the lid side wall can be compressed from opposing sides by a single or one hand operation so that the lid side wall (10) deforms itself to an ellipse whereby the engagement of the projecting sealing region (13) is ended in a consequence of this and the lid (3) is detachable from the dish (2).
6 more elements
A cell culture dish, comprising:
- a dish (2) with a bottom wall (4) and a circumferential side wall (5) standing upward from the same;
- a lid (3) having a lid side wall (10) which in a sealing position sits sealingly on the side wall the lid side wall (10) is extending over the side wall of the dish (4);
- contact surfaces of lid (3) and side wall (5) being formed as sealing seat (13, 14) and defining frictionally fitting means, which releasably retains the lid on the dish in the sealing position;
- the sealing seat (13) of the lid (3) being formed by a conical section (11) on a projecting sealing region (13) circulating on the inside perimeter of the lid side wall (10) and the sealing seat of the side wall (5) being formed by a circumferential conical section (12) disposed on an undercut (14) on the outer perimeter of the side wall (5);
- the lid (3) has at least one spring tongue which is formed by parallel slits in the lid side wall (10) starting from the lower edge of the lid side wall (10), the spring tongue being deflectable perpendicular to the circumference of side wall (10), the inner circumference of the tongue engaging a ramp-like or wedge-like projection on the circumference of a side wall of dish (2);
- the conical sections (11, 12) and the undercut (14) being designed such that the sealing position can be achieved by pressing the lid (3) onto dish (2)
- whereby the lower edge of the lid side wall (10) deflects the spring tongues (7) in an axial direction, at the same time the side wall (5) is radially somewhat compressed and the lid side wall (10) is radially somewhat widened and finally the projecting sealing region (13) is snapped below the undercut (14) and the conical sections (11, 12) sit sealingly close to each other in the sealing position,
- wherein the sealing is effected by a clamping force between the undercut (14) and the projecting sealing region (13), and further wherein the at least one spring tongue (7) does not have a holding function in the sealing position, and
- and the side wall of the lid being designed such that the lid side wall can be compressed from opposing sides by a single or one hand operation so that the lid side wall (10) deforms itself to an ellipse whereby the engagement of the projecting sealing region (13) is ended in a consequence of this and the lid (3) is detachable from the dish (2).
6 more elements
Dependencies are inferred from the claim text.