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. 06, 2015
Filed:
Aug. 27, 2009
Applicant:
Keun Sang Lee, Cheonan-si, KR;
Inventor:
Keun Sang Lee, Cheonan-si, KR;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/03 (2006.01); F16K 3/314 (2006.01);
U.S. Cl.
CPC ...
F16K 3/03 (2013.01); F16K 3/314 (2013.01);
Abstract
An aperture-shaped variable valve which is used for a semi-active control. The variable valve includes a ring-shaped aperture frame, a plurality of aperture plates which is arranged in a ring shape by overlapping each other on the aperture frame and forms an aperture, a restoring ring which fits into the outside of an aperture surface, and a spring which is connected between the restoring ring and the aperture frame.
Lee, Keun. (2015). Aperture-shaped variable valve (U.S. Patent No. 8925578). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8925578
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile