Valve operated by a master key
AssigneeBMT Co., Ltd.
InventorJong Chan Yoon
Life of this patent
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Abstract
The present invention relates generally to valves for controlling the flow of fluid and, more particularly, to 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 controlled using a master key according to the present invention, which is constructed such that a fluid passage is controlled by rotating a handle relative to a body, includes a locking means for maintaining the locked state of the handle relative to the body. Furthermore, a master key slot, which extends to the locking means, is formed in the handle, so that, when a 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 rotation of the handle.
Claims18
A valve to control a fluid passage using rotation of a handle relative to a body, comprising:
- locking means for maintaining a locked state of the handle relative to the body;
- and
- a master key slot being formed in the handle and extending to the locking means,
- wherein, when a master key is inserted into the master key slot, the locked state of the handle is released to allow the fluid passage to be controlled by rotation of the handle.
Dependencies are inferred from the claim text.