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.:

US 8418515 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 16, 2013

Filed:

Jul. 09, 2007
Applicant:

Jong Chan Yoon, Busan, KR;

Inventor:

Jong Chan Yoon, Busan, KR;

Assignee:

BMT Co., Ltd., Busan, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A valve which is controlled using a master key such that only an authorized person is able to turn the valve on and off. The valve is constructed such that a fluid passage is controlled by rotating a handle relative to a body, including a locking device for maintaining a locked state of the handle relative to the body. A master key slot, which extends to the locking device, is formed in the handle, so that, when the master key is inserted into the master key slot, the locked state of the handle is released such that the fluid passage can be controlled by the rotation of the handle.


Find Patent Forward Citations

Yoon, Jong. (2013). Valve operated by a master key (U.S. Patent No. 8418515). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8418515

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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