Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 24, 2011
Patent Application Number
11071827
Date Filed
March 3, 2005
Patent Primary Examiner
Patent abstract
A dual-purpose cap for a jar-aquarium comprising a topwall having (a) at least one ingress aperture sized to accept free unbroken water-stream passage therethrough for cap-on filling of the jar-aquarium and (b) at least one egress aperture smaller than the ingress aperture and spaced therefrom to facilitate controlled cap-on out-pouring of water, whereby jar-aquarium water may be changed without removing the cap. A series of egress apertures may be grouped together along the edge of the topwall.
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