Patent ID: 7172559
Filing Date: 2007-02-06
Classification: A61B

Abstract:
1. A dual-chamber liquid receiving and retaining device which comprises: a. a liquid receiving and retaining body, said body having an open top and an open bottom; b. a generally funnel-shaped transverse inner wall dividing said body into an upper liquid receiving and retaining chamber and a lower liquid receiving and retaining chamber, said transverse inner wall having a central orifice which enables liquid flow communication between said upper and lower chambers; c. an orifice stopper disposed in said lower chamber beneath said orifice, said stopper being responsive to liquid filling said lower chamber to a predetermined liquid level for causing the stopper to float upwardly into sealing engagement with said orifice for stopping liquid flow into the lower chamber; d. a detachable body top cover; e. a detachable body bottom cover having an annular, spring-like, flexible web formed around a downwardly extending bottom cover region, said web being responsive to a downward pushing on the device onto said downwardly extending bottom cover region for deflecting upwardly in a manner causing a central upstanding region of the bottom cover to engage said stopper and force the stopper upwardly into said orifice; and f. means, disposed in said lower chamber, for relieving air pressure in said lower chamber when the device is downwardly pushed onto said downwardly extending bottom cover region and said flexible web is deflected upwardly, thereby causing a lower chamber volume to be reduced.