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:
Jan. 25, 2005
Filed:
Jan. 19, 2002
Young-hoon Shin, Seoul, KR;
Young-Hoon Shin, Seoul, KR;
Other;
Abstract
Disclosed is a diaphragm valve. When a chamber is expanded by fluid supply into a pipe-shaped button, a valve stem is slightly moved upward by a rod and a shaft to open an outlet of an orifice. Fluid received in a space between a cap and a diaphragm and having a high pressure is discharged into an outlet-side space, whereby the diaphragm opens a guide conduit. When fluid is discharged from the pipe-shaped button, the diaphragm is moved toward the guide conduit, and the valve stem closes the outlet. The fluid in the inlet-side space has a high pressure, and the fluid in the space between the cap and diaphragm has a low pressure. The high pressure fluid flows toward the low pressure fluid through a pilot hole of the diaphragm. When fluid pressure balance is effected between the spaces, the diaphragm closes the guide conduit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile