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. 12, 2020
Filed:
Dec. 09, 2016
Kyungdong Navien Co., Ltd., Pyeongtaek-si, KR;
KYUNGDONG NAVIEN CO., LTD., Pyeongtaek-si, KR;
Abstract
A hot water supply system according to the present invention includes: a hot water supply unit configured to supply hot water; an opening and closing valve configured to connect a hot water supply pipe, which is configured to supply hot water to a user from the hot water supply unit, and a cold water supply pipe, which is configured to supply cold water introduced from a cold water inflow pipe to the user, to allow water to flow or configured to disconnect the hot water supply pipe from the cold water supply pipe to block the water from flowing; a circulation pump configured to circulate water supplied from the hot water supply unit through the hot water supply pipe, the opening and closing valve, the cold water supply pipe, and the hot water supply unit; and a control unit configured to, when a water-preheating signal of the user is input, open the opening and closing valve, and operate the circulation pump to preheat water which is to be supplied to the user.