CN203258133U - Integrated cutting-type pressure regulator - Google Patents
Integrated cutting-type pressure regulator Download PDFInfo
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- CN203258133U CN203258133U CN 201320186262 CN201320186262U CN203258133U CN 203258133 U CN203258133 U CN 203258133U CN 201320186262 CN201320186262 CN 201320186262 CN 201320186262 U CN201320186262 U CN 201320186262U CN 203258133 U CN203258133 U CN 203258133U
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Abstract
The utility model discloses an integrated cutting-type pressure regulator. The integrated cutting-type pressure regulator is characterized by mainly comprising a regulating component, a balance valve core component, a cutting component and a valve body, and is simple in structure because of being divided into several modules, compact in size, small in occupied area and convenient to maintain in an on-line mode. The diameter of an air inlet of the regulator is DN50, the diameter of an air outlet is DN80, and therefore the regulator is great in circulation capability; because the balance valve core is adopted, the pressure fluctuation is small and the application pressure range is wide; because a steel ball hanging cutting structure is adopted, the regulator is high in cutting flexibility, good in repeatability, simple in cutting pressure set and wide in range.
Description
Technical field
The utility model relates to the controlling device in the mesolow gas ductwork distributing system of a kind of city, specifically is a kind of integrated cutting type pressure regulator.
Background technique
The pressure regulator main structure comprises regulates parts, equalizing feature, cut-out parts; Traditional modulating valve pole face contact is the some contact, and is dumb during adjusting, produces corrosion because long-term face contact can cause the regulating valve stem end wear, and can have the drawback of the unstable and Torque-adjusting increasing of adjusting.The straight-through vent of traditional equalizing feature is directly exerted pressure to the balance epithelium, and air-flow directly washes away with the generation of balance epithelium and causes balance epithelium fracture failure, has a strong impact on durability and the working life of balance epithelium; And machining error and assembly error cause closes poorly sealed and closes error, also can affect product closing pressure grade and precision.Traditional cut-out part side contact is for the some contact, and is dumb during cut-out, and long-term face contact can cause the wearing and tearing of cut-off valve boom end to produce corrosion, also can have the unstable of cut-out and cut off ineffective drawback.
The model utility content
The purpose of this utility model is to provide a kind of integrated cutting type pressure regulator at this, is applicable to city mesolow gas ductwork distributing system and regulates applicable as pressure.
The utility model is achieved in that a kind of integrated cutting type pressure regulator of structure, it is characterized in that: main structure comprises regulates parts, balance valve core parts, cut-out parts and valve body; Described adjusting parts integral body is fixed on the valve body by hex head bolt, spring washer, described valve body lower end is by the capping of hex head bolt plain washer fixed valve body, described valve body capping and valve body lower end arrange O type circle, the corresponding valve port of valve body place is provided with O type circle, and O type circle is set between described adjusting parts and the valve body.
According to integrated cutting type pressure regulator described in the utility model
, it is characterized in that:Regulate parts and comprise pressure-bearing membrane cover, adjusting epithelium, large pallet, little pallet, sleeve, adjustable lever;
Fix by hex head bolt, packing ring, hexagon nut between described lower membrane cover and the upper membrane cover, in the cavity that lower membrane cover and upper membrane cover form large pallet, little pallet are set, diaphragm is positioned under the large pallet, on the lower membrane cover with connection block, by the hexagon nut spring washer connecting base is set on the upper membrane cover, connecting base is positioned on the seat ring, fixes described seat ring by socket head screw, spring washer on the upper membrane cover
Described sleeve is fixed by connecting base, the sleeve top is capping, adjustable lever passes capping and interts in sleeve, be provided with fixed plate in the sleeve, the extension spring upper end is by the spring fastening screw trip bolt, and the lower end is fixed in the sleeve by the spring fastening screw trip bolt, adjustable lever is with general taper pin and cotter pin, the built-in steel ball that is provided with in its lower end, extension spring be by the spring seat setting, and described spring seat and adjustable lever are for being threaded.
According to integrated cutting type pressure regulator described in the utility model
, it is characterized in that:
Described equalizing feature comprises balance valve pocket, balance diaphragm, balance film gland, valve rod;
Described balance film gland is positioned at the valve rod upper end, fix by socket head screw between balance film pressing plate and the balance film connecting base, balance film connecting base arranged outside has O type circle, be provided with the balance film pressure pad in the balance film connecting base, the balance diaphragm is arranged on the balance film pressure pad by the balance film gland, and the balance diaphragm is by being provided with O type circle between the balance film gland, valve stem casing is positioned at outside the valve rod, and be positioned under the balance film connecting base, there is the balance valve pocket valve stem casing outside
Be provided with bearing housing between described valve stem casing and the balance valve pocket, be provided with bearing housing between valve stem casing and the valve rod, the corresponding porose back-up ring of using on the bearing housing, balance valve pocket outside is provided with and cuts off spring seat, cuts off valve seat, cutting off spring is arranged on outside the balance valve pocket by cutting off spring seat, also be provided with O type circle between valve stem casing and the balance valve pocket
Be provided with O type circle between described cut-out valve seat and the balance valve pocket, both lower end parts are provided with circlip for shaft, cut off the flap spring by cutting off the valve seat setting;
The lower end of described valve rod is provided with closely-pitched hexagon nut, plain cushion, plain cushion, flap nut, flap pressing plate, flap pressing plate, flap sealing gasket, flap sealing seat, O type circle is set between flap sealing seat and the valve rod, and flap pressing plate, flap pressing plate, flap sealing gasket are positioned at outside the flap sealing seat.
According to integrated cutting type pressure regulator described in the utility model
, it is characterized in that:
Described cut-out parts comprise cut off valve body, cut off valve rod, cut off lever assembly, cut off dwang, Returnning spring is helped pull a cart, is cut off in hand off;
Described cut-out collision block is positioned at an end that cuts off valve rod, and fix by locking nut, cutting off the adjusting capping is arranged on the cut-out valve body, ferrule fitting covers under being positioned at and cutting off, cut off in the valve body and be provided with the cut-out lever assembly, the hand off capping is arranged on to be cut off on the valve body, and hand off is helped pull a cart and is positioned on the hand off pull bar, the hand off spring is positioned at and cuts off capping
Described cut-out rotary head is positioned at and cuts off on the dwang, the dwang lining is positioned at and cuts off the dwang outer end, shaft block ring is positioned at the end of dwang lining, cut off between dwang and the dwang lining and be provided with O type circle, cut off pulling sleeve and be provided with copper sheathing with cut-out valve gap corresponding part, the bearing pin two ends are provided with bearing, and bearing pin arranges setting sleeve, setting sleeve outward.
The utility model has the advantage of: this product structure is simple, is divided into several modular structures, compact dimensions, and it is little to take up room, and on-line maintenance is easy to maintenance; Product air inlet bore is DN50, and the bore of giving vent to anger is DN80, and negotiability is large; Adopt the balanced type valve core structure, pressure surge is little, and applicable pressure range is broad; Adopt steel ball hung type cut-out structure, cut off the action sensitivity height, Repeatability is good, and cuts off operating pressure and set simply, and scope is wide.
Description of drawings
Fig. 1 is the utility model inner body structural representation
Fig. 2 is the utility model inner body structural representation
Fig. 3 is the utility model external overall structural representation
Fig. 4 is that the utility model is regulated the parts structural representation
Fig. 5 is the utility model balance valve core modular construction schematic representation
Fig. 6 is that the utility model cuts off parts internal structure schematic representation
Fig. 7 is that the utility model cuts off parts internal structure schematic representation
Fig. 8 is that the utility model cuts off parts external structure schematic representation
Valve body capping 101, O type circle 102, hex head bolt 103, plain washer 104, valve body 105, valve port 106, O type circle 107, balance valve core parts 108, hex head bolt 109, spring washer 110, O type circle 111, adjusting parts 112, Cross Recess Head Screw 113, O type circle 114, cut-out parts 115, socket head screw 116;
Closely-pitched hexagon nut 301, plain cushion 302, plain cushion 303, flap nut 303, flap pressing plate 304, flap pressing plate 305, flap sealing gasket 306, flap sealing seat 307, O type circle 308, circlip for shaft 309, cut off valve seat 310, O type circle 311, cut off flap spring 312, O type circle 313, cut off spring seat 314, cut off spring 315, bearing housing 316, valve stem casing 317, O type circle 318, balance film pressure pad 319, O type circle 320, balance diaphragm 321, balance film pressing plate 322, socket head screw 323, balance film gland 324, balance film connecting base 325, O type circle 326, valve rod 327, bearing housing 328, hole back-up ring 329, balance valve pocket 330;
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in the figure, providing integrated cutting type pressure regulator to be applicable to city mesolow gas ductwork distributing system regulates applicable as pressure.Main structure comprises regulates parts 112, balance valve core parts 108, cut-out parts 115 and valve body 105; Described adjusting parts integral body is fixed on the valve body 105 by hex head bolt 109, spring washer 110, described valve body 105 lower ends are by the 104 fixed valve body cappings 101 of hex head bolt 103 plain washers, described valve body capping 101 arranges O type circle 102 with valve body 105 lower ends, valve body 105 corresponding valve ports 106 places are provided with O type circle 107, and O type circle 111 is set between described adjusting parts 112 and the valve body 105.
Regulate parts 112 and comprise pressure-bearing membrane cover 201, adjusting epithelium 202, large pallet 203, little pallet 204, sleeve 216, adjustable lever 218; Pass through hex head bolt 223 between described lower membrane cover 201 and the upper membrane cover 208, packing ring 224, hexagon nut 225 is fixing, in the cavity that lower membrane cover 201 and upper membrane cover 208 form large pallet 203 is set, little pallet 204, diaphragm 202 is positioned at large pallet 203 times, on the lower membrane cover 201 with connection block 207, by hexagon nut 209 spring washers 210 connecting base 213 is set on the upper membrane cover 208, connecting base 213 is positioned on the seat ring 211, pass through socket head screw 227 on the upper membrane cover 208, spring washer 228 fixing described seat rings 211, described sleeve 216 is fixing by connecting base 213, sleeve 216 tops are capping 217, adjustable lever 218 passes capping 217 and interts in sleeve 216, be provided with fixed plate 215 in the sleeve 216, extension spring 214 upper ends are by spring fastening screw trip bolt 219, the lower end is fixed in the sleeve 216 by spring fastening screw trip bolt 212, adjustable lever 218 is with general taper pin 220 and cotter pin 221, the built-in steel ball 229 that is provided with in its lower end, extension spring 222 arranges by spring seat 226, and described spring seat 226 and adjustable lever 218 are for being threaded.
Described equalizing feature comprises balance valve pocket 330, balance diaphragm 321, balance film gland 324, valve rod 327; Described balance film gland 324 is positioned at valve rod 327 upper ends, fixing by socket head screw 323 between balance film pressing plate 322 and the balance film connecting base 325, balance film connecting base 325 arranged outside have O type circle 326, be provided with balance film pressure pad 319 in the balance film connecting base 325, balance diaphragm 321 is arranged on the balance film pressure pad 319 by balance film gland 324, balance diaphragm 321 is by being provided with O type circle 320 between the balance film gland 324, valve stem casing 317 is positioned at outside the valve rod 327, and be positioned at the balance film connecting base 325 times, there is balance valve pocket 330 valve stem casing 317 outsides, be provided with bearing housing 316 between described valve stem casing 317 and the balance valve pocket 330, be provided with bearing housing 328 between valve stem casing 317 and the valve rod 327, corresponding porose with back-up ring 329 on the bearing housing 316, balance valve pocket 330 outsides are provided with and cut off spring seat 314, cut off valve seat 310, cutting off spring 315 is arranged on outside the balance valve pocket 330 by cutting off spring seat 314, also be provided with O type circle 313 between valve stem casing 317 and the balance valve pocket 330, be provided with O type circle 311 between described cut-out valve seat 310 and the balance valve pocket 330, both lower end parts are provided with circlip for shaft 309, cut off flap spring 312 and arrange by cutting off valve seat 310; The lower end of described valve rod 327 is provided with closely-pitched hexagon nut 301, plain cushion 302, plain cushion 303, flap nut 303, flap pressing plate 304, flap pressing plate 305, flap sealing gasket 306, flap sealing seat 307, O type circle 308 is set between flap sealing seat 307 and the valve rod 327, and flap pressing plate 304, flap pressing plate 305, flap sealing gasket 306 are positioned at outside the flap sealing seat 307.
Described cut-out parts comprise cut off valve body 407, cut off valve rod 402, cut off lever assembly 408, cut off dwang 417, hand off helps pull a cart 412, cut off Returnning spring 405; Described cut-out collision block 414 is positioned at an end that cuts off valve rod 402, and fixing by locking nut 415, cutting off adjusting capping 403 is arranged on the cut-out valve body 407, ferrule fitting 401 is positioned at and cuts off on the lower cover 433, cut off to be provided with in the valve body 407 and cut off lever assembly 408, hand off capping 409 is arranged on to be cut off on the valve body 407, hand off is helped pull a cart and 412 is positioned on the hand off pull bar 411, hand off spring 410 is positioned at and cuts off capping 409, described cut-out rotary head 416 is positioned at and cuts off on the dwang 417, dwang lining 422 is positioned at and cuts off dwang 417 outer ends, shaft block ring 418 is positioned at the end of dwang lining 422, cut off between dwang 417 and the dwang lining 422 and be provided with O type circle 419, cut off pulling sleeve 423 and be provided with copper sheathing 425 with cut-out valve gap 426 corresponding parts, bearing pin 431 two ends are provided with bearing 428, the bearing pin 431 outer setting sleeves 432 that arrange, setting sleeve 429.
Integrated cutting type pressure regulator through optimal design and improvement, has unique advantage and performance advantage.
In the utility model, regulate parts 112 and adopt the secondary balance weight structure block structure, the adjustment fluctuation of having avoided pressure surge to bring, no matter how suction pressure fluctuates this product, regulate all the time minor fluctuations in very little scope of epithelium, pressure is regulated quite steady, and degree of regulation improves greatly, and the performance quite stable is reliable.Adjustable lever 218 adopts built-in ball type regulation structure, change traditional face contact and be the some contact, light and flexible when not only regulating has more overcome because for a long time face contact causes regulating valve stem end wear generation corrosion, has overcome the drawback of the unstable and Torque-adjusting increasing of regulating.
In the utility model, equalizing feature 108 adopts balance epithelium structure, make regulation range broader, adopt built-in vent hole structure, make air-flow steadily enter balance film cavity of resorption (the traditional design theory is vent to be set in balance film bottom introduce pressurized gas balance film is directly exerted pressure, because the unstability of air pressure causes the balance film damage of breaking) by valve lever clearance.Changing traditional straight-through vent directly exerts pressure to the balance epithelium, avoid air-flow directly to wash away with the generation of balance epithelium and caused balance epithelium fracture failure, durability and the working life of balance epithelium have been improved, adopt the universal structure flap, overcome because of what machining error and assembly error caused and closed poorly sealed and close error, improved product closing pressure grade and precision, closed performance and increase substantially.
In the utility model, cut off parts and adopt built-in ball type to cut off structure, change traditional face contact and be some contact, light and flexible when not only cutting off, more overcome because long-term face contact causes cut-off valve boom end wearing and tearing generation corrosion, overcome the unstable of cut-out and cut off ineffective drawback.Cut off parts and adopt large epithelium shutdown mechanism, make its cut-out pressure precision more accurate, stable, action sensitivity also increases substantially simultaneously.
As long as adopt the shutdown mechanism of manually helping pull a cart, change traditional manual gland structure, but make its hand off gently once drawing auto-manual to cut off, operational torque reduces greatly.Adopt the secondary spring to be affiliated to mechanism, spring diameter is 1.0mm, and operational torque is very little.Change the gas pressure that traditional manually being affiliated to need to overcome the load of Regulation spring institute, operational torque is quite large, and it is very painstaking to cause manually being affiliated to, and often needs repeatedly to be affiliated to just and can be achieved.
Integrated cutting type pressure regulator structurally improves, good in the performance performance, all greatly surmount domestic traditional type product at aspects such as the precision of voltage regulation, closing pressure precision, fluid capacity, should say this product level that is in a leading position in going together at home.See the product performance test chart for details.
As can be seen from the above data, integrated cutting type pressure regulator described in the utility model is in whole pressure range, outlet pressure is minor fluctuations between-0.2-0.15KPa all the time, the precision of voltage regulation is between 5%-6%, and the present domestic traditional product precision of voltage regulation generally all fluctuates between 10%-15%.Simultaneously, the integrated cutting type pressure regulator of RTZ-50/0.4NQ closing pressure is minor fluctuations between 0.1-0.3KPa also, closes precision between 3%-10%, and present domestic traditional product is closed precision and generally all fluctuateed between 15%-20%.Negotiability is also up to 1650, and whole data have exceeded present domestic traditional product of the same type equally.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. integrated cutting type pressure regulator is characterized in that: main structure comprises to be regulated parts (112), balance valve core parts (108), cuts off parts (115) and valve body (105); Described adjusting parts are whole to be fixed on the valve body (105) by hex head bolt (109), spring washer (110), described valve body (105) lower end is by hex head bolt (103) plain washer (104) fixed valve body capping (101), described valve body capping (101) arranges O type circle (102) with valve body (105) lower end, the corresponding valve port of valve body (105) (106) locates to be provided with O type circle (107), between described adjusting parts (112) and the valve body (105) O type circle (111) is set.
2. integrated cutting type pressure regulator according to claim 1
, it is characterized in that:Regulate parts (112) and comprise pressure-bearing membrane cover (201), adjusting epithelium (202), large pallet (203), little pallet (204), sleeve (216), adjustable lever (218);
Pass through hex head bolt (223) between described lower membrane cover (201) and the upper membrane cover (208), packing ring (224), hexagon nut (225) is fixing, in the cavity that lower membrane cover (201) and upper membrane cover (208) form large pallet (203) is set, little pallet (204), diaphragm (202) is positioned under the large pallet (203), lower membrane cover (201) is upper with connection block (207), upper membrane cover (208) is upper to arrange connecting base (213) by hexagon nut (209) spring washer (210), connecting base (213) is positioned on the seat ring (211), upper membrane cover (208) is upper by socket head screw (227), spring washer (228) is fixed described seat ring (211)
Described sleeve (216) is fixing by connecting base (213), sleeve (216) top is capping (217), adjustable lever (218) passes capping (217) and interts in sleeve (216), be provided with fixed plate (215) in the sleeve (216), extension spring (214) upper end is by spring fastening screw trip bolt (219), the lower end is fixed in the sleeve (216) by spring fastening screw trip bolt (212), adjustable lever (218) is with general taper pin (220) and cotter pin (221), the built-in steel ball (229) that is provided with in its lower end, extension spring (222) arranges by spring seat (226), and described spring seat (226) and adjustable lever (218) are for being threaded.
3. integrated cutting type pressure regulator according to claim 1
, it is characterized in that:
Described equalizing feature comprises balance valve pocket (330), balance diaphragm (321), balance film gland (324), valve rod (327);
Described balance film gland (324) is positioned at valve rod (327) upper end, fixing by socket head screw (323) between balance film pressing plate (322) and the balance film connecting base (325), balance film connecting base (325) arranged outside has O type circle (326), be provided with balance film pressure pad (319) in the balance film connecting base (325), balance diaphragm (321) is arranged on the balance film pressure pad (319) by balance film gland (324), balance diaphragm (321) is by being provided with O type circle (320) between the balance film gland (324), valve stem casing (317) is positioned at outside the valve rod (327), and be positioned under the balance film connecting base (325), there is balance valve pocket (330) valve stem casing (317) outside
Bearing holder (316) is located between described valve stem sleeve(317)) and balance valve pocket (330), be provided with bearing holder (328) between valve stem sleeve (317) and valve rod (327); On bearing holder (316) is with corresponding porose back-up ring (329); balance valve pocket (330) outside is provided with and cut-off spring base (314), cut-off valve seat (310), cut-off spring (315) and is arranged outside of balance valve pocket (330) by cut-off spring base (314); Also be provided with O type circle (313) between valve stem sleeve (317) and balance valve pocket (330),
Be provided with O type circle (311) between described cut-out valve seat (310) and the balance valve pocket (330), both lower end parts are provided with circlip for shaft (309), cut off flap spring (312) by cutting off valve seat (310) setting;
The lower end of described valve rod (327) is provided with closely-pitched hexagon nut (301), plain cushion (302), plain cushion (303), flap nut (303), flap pressing plate (304), flap pressing plate (305), flap sealing gasket (306), flap sealing seat (307), between flap sealing seat (307) and the valve rod (327) O type circle (308) is set, flap pressing plate (304), flap pressing plate (305), flap sealing gasket (306) are positioned at outside the flap sealing seat (307).
4. integrated cutting type pressure regulator according to claim 1
, it is characterized in that:
Described cut-out parts comprise cut off valve body (407), cut off valve rod (402), cut off lever assembly (408), cut off dwang (417), Returnning spring (405) is helped pull a cart (412), is cut off in hand off;
Described cut-out collision block, (414) be positioned at the cut-out valve rod, (402) a end, and by locking nut M5, (415) fixing, cut off and regulate capping, (403) be arranged on the cut-out valve body, (407) on, ferrule fitting, (401) be positioned at the cut-out lower cover, (433) on, cut off valve body, (407) be provided with the cut-out lever assembly in, (408), the hand off capping, (409) be arranged on the cut-out valve body, (407) on, hand off is helped pull a cart, (412) be positioned at the hand off pull bar, (411) on, the hand off spring, (410) be positioned at the cut-out capping, (409) in
Described cut-out rotary head (416) is positioned at and cuts off on the dwang (417), dwang lining (422) is positioned at and cuts off dwang (417) outer end, shaft block ring (418) is positioned at the end of dwang lining (422), cut off between dwang (417) and the dwang lining (422) and be provided with O type circle (419), cut off pulling sleeve (423) and be provided with copper sheathing (425) with cut-out valve gap (426) corresponding part, bearing pin (431) two ends are provided with bearing (428), outer setting sleeve (432), the setting sleeve (429) of arranging of bearing pin (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320186262 CN203258133U (en) | 2013-04-15 | 2013-04-15 | Integrated cutting-type pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320186262 CN203258133U (en) | 2013-04-15 | 2013-04-15 | Integrated cutting-type pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258133U true CN203258133U (en) | 2013-10-30 |
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ID=49470696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320186262 Expired - Fee Related CN203258133U (en) | 2013-04-15 | 2013-04-15 | Integrated cutting-type pressure regulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN203258133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174858A (en) * | 2013-04-15 | 2013-06-26 | 四川嘉星燃气设备制造有限公司 | Integrated cut-off type pressure regulator |
-
2013
- 2013-04-15 CN CN 201320186262 patent/CN203258133U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174858A (en) * | 2013-04-15 | 2013-06-26 | 四川嘉星燃气设备制造有限公司 | Integrated cut-off type pressure regulator |
| CN103174858B (en) * | 2013-04-15 | 2015-10-28 | 四川嘉星燃气设备制造有限公司 | Integration cutting type pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20180415 |