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:
Nov. 13, 2018
Filed:
Sep. 14, 2016
Shanghai Kohler Electronics, Ltd., Shanghai, CN;
Abstract
A backflow prevention device including a tank having a holding chamber and first and second inlets connected with the holding chamber; a control valve having an intake chamber and first and second discharge chambers connected with the first and second inlets, respectively, the intake chamber connected with the first discharge chamber through a valve inlet; a valve sealing element for opening and closing the valve inlet, the second discharge chamber connected with the intake chamber through a hole of the valve sealing element; a float in the holding chamber; a slide bar in the holding chamber, contacting the float, and moveable toward the second inlet under the action of the float; and a slide bar sealing element for controlling opening and closing of the second inlet. When the second inlet is closed, the valve inlet is closed; and when the second inlet is open, the valve inlet is opened.