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. 26, 1998
Filed:
Feb. 19, 1997
Jae-Young Jang, Suwon, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A backward flow prevention device includes a body through which a fluid passage extends, the fluid passage intersecting an outer periphery of the body to form a fluid port. A flexible tube includes a first end mounted on the outer periphery of the body to extend across the fluid port, and a second, open end. The body is adapted to be mounted in a fluid conducting tube. When fluid flows through the fluid passage and exits the fluid port, it forces the tube away from the fluid port, whereby the fluid can flow through the tube and out the open end thereof. When the fluid flows backwards in the pipe, the fluid pressure causes the tube to be pressed against, and close, the fluid port.