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. 01, 1990
Filed:
Jul. 29, 1988
Applicant:
Inventors:
Motoki Matsumoto, Aichi, JP;
Kouichi Watanabe, Aichi, JP;
Assignee:
Toyotomi Kogyo Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24D / ;
U.S. Cl.
CPC ...
237 60 ; 237 59 ;
Abstract
A hot water circulating system capable of decreasing energy loss, increasing the amount of hot water to be circulated per unit time and reducing time required for each circulating cycle. The system includes a valve opened at the start of emptying of water out of a water boiler to supply water from an open tank to the water boiler. The water boiler is divided into a heated section and a hot water receiving section arranged above and communicated with the heated section.