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:
May. 24, 1994
Filed:
Feb. 18, 1993
Applicant:
Inventors:
Goro Kakizawa, Tokyo, JP;
Tadashi Fukami, Kanagawa, JP;
Assignee:
Ohken Seiko Co., Ltd., Inagi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
4151691 ; 96194 ; 96214 ;
Abstract
An impeller pump which can be connected for use with hot-water serving systems. By the rotation of an impeller, liquids are sucked through a suction port which is connected with a container of the hot-water serving system and discharged through a discharge port for the intended supply. A guide port is provided nearby the suction port to let escape bubbles from the pump chamber, thereby assuring that the hot-water supply capacity performance is kept constant.