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.

Date of Patent:
Jan. 31, 2012

Filed:

Dec. 15, 2008
Applicants:

Ruifeng Cai, Fujian, CN;

Quanxi Liu, Fujian, CN;

Inventors:

Ruifeng Cai, Fujian, CN;

Quanxi Liu, Fujian, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D06F 75/26 (2006.01); D06F 75/40 (2006.01); G05B 7/00 (2006.01); F24H 1/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

A control method and device for the automatic water-replenishing for a boiler iron producing continuous steaming is disclosed. The method, which comprises a normally-closed pressure switch that can control power on/off of the boiler with respect to pressure and a normally-closed thermostat for maintaining a boiler thermostatic state, comprises the following steps: (1) determining whether the thermostat switch is off; if yes, step (3) is carried out, and if no, step (2) is carried out; (2) detecting whether the steam is being ejected; if yes, the electromagnetic valve will be opened to eject steam, while simultaneously pumping a relatively small amount of water into the boiler; (3) controlling the pump to pump a large amount of water into the boiler. According to a preferred embodiment of the present invention, in step (2), the quantity of water is slightly less than the quantity of water that is ejected as steam.


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