发明名称 Aquarium air valve system and hanger unit
摘要 The present invention is a an aquarium air valve system and hanger unit for control of air entering an aquarium. The valve system has one or more valves thereon and is provided with a means for controlling the air flow from each valve. The valve system is mounted to the outer surface of the top wall of a hanger unit. The top wall is of adjustable size in order to allow secure fit over a variety of types of aquarium top frames. A valve system cover may also be provided in order to protect the valve system from accumulating metallics and debris.
申请公布号 US4804012(A) 申请公布日期 1989.02.14
申请号 US19870062973 申请日期 1987.06.17
申请人 PENN PLAX PLASTICS, INC. 发明人 GOLDMAN, JEROME;GOLDMAN, MARVIN;PHILLIPS, GERALD;GOLDMAN, TERRY
分类号 A01K63/04;(IPC1-7):F16L3/00 主分类号 A01K63/04
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