Abstract

The corrosion sensor according to the present invention comprises: a base cylindrical housing extending a predetermined length along one direction and surrounding a plurality of wires; an extension cylindrical housing coupled to the base cylindrical housing at one side thereof and having connecting pins connected to the individual wires of the base cylindrical housing; a buried plug which is inserted in the base cylindrical housing at the other side thereof and faces the individual wires; and a corrosion inducement member having an extension pad which is positioned opposite to the individual wires, covers and passes through the buried plug, and is electrically connected to the individual wires.

IPC Classes  ?

• G01N 17/04 - Corrosion probes
• G01N 17/00 - Investigating resistance of materials to the weather, to corrosion or to light
• G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
• G01D 11/24 - Housings

Abstract

The valve interlock structure according to the present invention comprises: an assembly housing formed by surrounding rectangular surfaces forming the outermost periphery; two indicators which are located near one of the rectangular surfaces of the assembly housing and protrude from the inside to the outside of the assembly housing; an adjustment unit spirally coupled to the two indicators via the one surface of the assembly housing; a gear column positioned inside the assembly housing and gear-coupled to the two indicators; and an accommodation unit which is positioned around the gear column, passes through the assembly housing, and is gear-coupled to the gear column.

IPC Classes  ?

• F16K 35/10 - Means to prevent accidental or unauthorised actuation with locking caps or locking bars
• F16K 35/06 - Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Abstract

A plug docking module of a retrieval tool according to the present invention comprises: a tubular joining member located inside a retrieval tool housing; a tubular connection member which is rotatably fixed to the tubular joining member by being inserted into the tubular joining member from below on the tubular joining member, and which protrudes from the tubular joining member through the upper side to mate with the tubular joining member on the upper side; a rotatably-driven plate member which is positioned inside the tubular connection member on the upper side of the tubular connection member and rotatably fixed to the tubular connection member; a rotatably-driving rod member which penetrates the rotatably-driven plate member, thereby becoming fixed to the rotatably-driven plate member and passing the tubular connection member and the tubular joining member in succession; and a tubular cover member which penetrates the rotatably-driving rod member, thereby covering the rotatably-driven plate member and surrounding the upper side of the tubular connection member.

IPC Classes  ?

• F16L 55/46 - Launching or retrieval of pigs or moles
• F16L 41/00 - Branching pipesJoining pipes to walls
• F16L 41/04 - Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluidsFittings therefor
• F16L 55/28 - Constructional aspects
• F16L 101/30 - Inspecting, measuring or testing

Abstract

A universal bottom adaptor, according to the present invention, comprises: a pressing disc which has inner and outer circumferences on a donut plate and has, along the donut plate, a plurality of bases and a plurality of seats between the inner and outer circumferences, along with a plurality of sliders between the plurality of bases and the plurality of seats; a tapered pipe which, on the pressing disc, covers the inner circumference and exposes the outer circumference of the pressing disc, and makes contact with the individual bases, the individual seats, and the individual sliders; and a position securing member which couples the individual seats to the tapered pipe at the plurality of seats of the pressing disc.

IPC Classes  ?

• F16K 35/06 - Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• F16K 35/04 - Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation

Abstract

A retrieval tool according to the present invention comprises: a chain accommodation housing coupled to a service valve; a chain restriction module which is located inside the chain accommodation housing and has belt-shaped driving and driven suspension chains and a plug holder connected to the driving and driven suspension chains, the driving and driven suspension chains being coupled by a zipper-type connection; and a power transmission member which is coupled to the driving and driven suspension chains in the chain restriction module, links the rotation of the driven suspension chain to the rotation of the driving suspension chain to change the coupling length of the driving and driven suspension chains, and adjusts the position of a plug holder from the service valve according to the coupling length of the driving and driven suspension chains.

IPC Classes  ?

• F16L 55/46 - Launching or retrieval of pigs or moles
• F16L 41/00 - Branching pipesJoining pipes to walls
• F16L 55/28 - Constructional aspects
• F16L 101/30 - Inspecting, measuring or testing

Abstract

A bracket for a valve control device according to the present invention comprises: a rectangular suspending member surrounding a lower adaptor and coupled to an interlock body; two connecting members positioned in a strap shape from both edges of the suspending member to respective edges and partially inserted to the suspending member; a rotating rod for rotatably fixing the respective connecting members to the suspending member; and a semi-annular stopper inserted to the suspending member and latched to the rotating rod.

IPC Classes  ?

• F16K 31/44 - Mechanical actuating means
• F16K 31/50 - Mechanical actuating means with screw-spindle
• F16K 35/06 - Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• F16K 35/04 - Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation

Abstract

A lower adapter of a valve control device according to the present invention comprises: a sleeve housing made of a cylindrical piece, having a rectangular hollow allowing a yoke sleeve to penetrate in a central region of the piece, and having guide parts which surround the hollow of the piece and face each other; first and second sleeve rotation restraint pieces positioned between one guide part and the other guide part in the sleeve housing and intermittently contacting the yoke sleeve; first and second rotation members positioned between the first and second sleeve rotation restraint pieces to surround the yoke sleeve and passing through the first and second sleeve rotation restraint pieces to be rotatably fixed to one guide part and the other guide part; first and second bumper plates accommodated in the sleeve housing to be positioned around the one guide part and the other guide part and partially inserted into the one guide part and the other guide part to contact the first and second rotation members; an interlocking connection pipe coupled to the sleeve housing to contact the first and second bumper plates, and extending from the sleeve housing toward an interlock body to be inserted into the interlock body.

IPC Classes  ?

• F16K 31/44 - Mechanical actuating means
• F16K 35/06 - Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• F16K 27/08 - Guiding yokes for spindlesMeans for closing housingsDust caps, e.g. for tyre valves
• F16K 31/50 - Mechanical actuating means with screw-spindle

Abstract

An upper adapter of a valve control device, according to the present invention, comprises: a handle-connecting member, which is formed in a cylindrical shape inside an interlock body and in a disc shape outside the interlock body; and a plurality of handle fixing members, which are positioned on the opposite side of the interlock body outside the interlock body so as to be inserted into the disc-shaped handle-connecting member, wherein the cylindrical handle-connecting member is coupled to a lower adapter inside the interlock body.

IPC Classes  ?

• F16K 31/44 - Mechanical actuating means
• F16K 31/60 - Handles
• F16K 35/06 - Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• F16K 31/50 - Mechanical actuating means with screw-spindle

Abstract

A valve lock according to the present invention comprises: a body installed on a valve and having two key holes for inserting two keys therein; a holder mounted on the body to transmit an operating force of a user to the valve; a stopper installed at the body to prevent the holder from rotating at an angle larger than a predetermined angle; and a key box which is disposed in the body, and which moves by the interaction with the keys to engage/disengage with/from the holder. The holder includes: a stopper groove for selectively causing mutual interference with the stopper during rotation; and a key groove for causing mutual interference with the key box. The key box includes a rotor which operates by engaging with the keys; a cam fixed at the rotor to rotate together with the rotor during the operation of the rotor; and an actuating block which operates in mutual interference with the cam, and which is inserted into or escapes from the key groove of the holder in accordance with the position of the cam to selectively cause mutual interference with the holder. The actuating block includes an inner block which selectively moves during the rotation of the cam; an outer block which moves by means of the inner block; a first elastic member which provides elastic force to the inner block to return the inner block to the original position when external force applied by the cam is removed; and a second elastic member which provides elastic force to the outer block to return the outer block to the original position when external force applied by the cam is removed. The combination of the two keys and the key box not only enables a user to select whether to rotate or to fix the holder, but also enables the user to select the rotation direction of the holder.

IPC Classes  ?

• F16K 35/10 - Means to prevent accidental or unauthorised actuation with locking caps or locking bars
• F16K 35/06 - Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• F16K 35/04 - Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation

Abstract

A valve lock according to the present invention comprises: a body installed on a valve and having key holes for inserting keys; a holder mounted on the body to rotate by means of a user's operating force; a key box disposed in the body and operating by interaction with the key; and a gear assembly interposed between the holder and key box which engages with the holder during rotation of the holder for engaging / disengaging the key box according to the position of the holder. The gear assembly includes: a driving rotary gear which rotates in mutual interference with the holder; 1st and 2nd slave rotary gears engaged with the driving rotary gear; 1st and 2nd locking blocks mounted on the 1st and 2nd slave rotary gears, respectively, to selectively rotate relative to each other and to engage/disengage the key box with the rotation angle; and fastening keys for fastening the1st and 2nd locking blocks to the1st and 2nd slave rotary gears, respectively. The key box includes: a rotor which engages with the keys; a cam fixed at the rotor to rotate therewith; an actuating block operating in mutual interference with the cam, and inserted into or escapes from the holder according to position of the cam to selectively cause mutual interference with the holder; and a stopper blade mounted on the rotor to cause mutual interference with the gear assembly. The combination of the keys, the key box, and the gear assembly locks and unlocks the rotation of the holder, and the maximum rotation position of the holder in one direction and the maximum rotation position of the holder in the other direction are set via the plurality of keys, thereby setting maximum open and close position of the valve.

IPC Classes  ?

• F16K 35/10 - Means to prevent accidental or unauthorised actuation with locking caps or locking bars
• F16K 35/06 - Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
• F16K 35/00 - Means to prevent accidental or unauthorised actuation