The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 1979
Filed:
Jan. 05, 1978
Applicant:
Inventor:
Masahiro Hase, 1261 Wada, Tama-shi, Tokyo, JP;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417413 ; 417538 ;
Abstract
A compact electromagnetically driven air pump comprising a valve body provided with two air inlets and two outlet pipes and a pump chamber provided on each side of the valve body, whereby two separate air passages are provided therein and said pump can supply air to two aquarium gadgets with equal pressure, is disclosed. This pump is more compact and less noisy than the prior art air pumps with two pump bodies.