CN203560519U - Fuel gas switch device - Google Patents
Fuel gas switch device Download PDFInfo
- Publication number
- CN203560519U CN203560519U CN201320573829.1U CN201320573829U CN203560519U CN 203560519 U CN203560519 U CN 203560519U CN 201320573829 U CN201320573829 U CN 201320573829U CN 203560519 U CN203560519 U CN 203560519U
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- locking device
- positioning ring
- central siphon
- gas
- conveying duct
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Abstract
Disclosed is a fuel gas switch device. The device comprises a valve base body, a ball valve, airtight rings disposed at two sides of the ball valve, an overflow enclosing device and an overheat enclosing device. The valve base body is provided with a convey tunnel. The ball valve, the airtight rings, the overflow enclosing device and the overheat enclosing device are disposed inside the convey tunnel of the valve base body. The convey tunnel of the valve base body is provided with a positioning ring that is disposed between the overflow enclosing device and the overheat enclosing device. The positioning ring can determine positions of the ball valve, the airtight rings disposed at the two sides of the ball valve, and the overflow enclosing device, and can be cooperated with the overheat enclosing device to close the convey tunnel of fuel gas in the face of overhigh environmental temperature, so that safety is improved.
Description
Technical field
The utility model has about a kind of gas switching device, espespecially a kind of burnt gas switch that includes integrated valve seat body, spherical valve, super flow locking device, it mainly makes the assembling location of spherical valve, super flow locking device more certain, the anxiety of non-loosening displacement.
Background technique
Combustion gas (for example: gas) is a kind of cheapness fuel easily again, by each family is used.Hereby take the conveying of gas as example, on gas pipeline, be provided with gas valve and carry out control gas and whether send into indoor.User indoor is provided with gas switch carrys out the conveying of control gas.One end of this gas switch is connected with the metal tube of carrying gas, and the other end is connected with nonmetallic flexible pipe.By opening and closing of manipulation gas switch, gas is transported to the burning of stove and accessory place.
When the flexible pipe generation holes connecting when this gas switch one end or the situation coming off, what gas can be a large amount of overflows, and easily breaking out of fire, or cause carbon monoxide poisoning.Therefore, in the conveying duct of gas switch, super flow locking device can be set, abnormal when a large amount of at gas flow, in time seal gas and carry duct.
Refer to the existing gas switch that is provided with spherical valve shown in Fig. 1 and Fig. 2.Its delivery pipe 61 adopts the mode being spirally connected to be combined with valve seat body 60.This delivery pipe 61, when being spirally connected with valve seat body 60, supports the gas-tight ring 621 of compeling this spherical valve 62 and both sides thereof.The duct of this delivery pipe 61 forms the conveying duct 611 of gas.This kind of structure, increases a joining portion, and this joining portion is the position that possible leak gas, and affects the Security of gas switch.Valve seat body 60 is bolt connection type structure, and structural strength is poor, also can increase the cost of making.
In aforesaid conveying duct 611, super flow locking device 63 and overheated locking device 64 can be set.In this conveying duct 611, reaming place 612 will be set, with the front end of accommodating this overheated locking device 64, making has enough holes between this overheated locking device 64 and reaming place 612 internal faces in conveying duct 611, allows Gas-Flow mistake.The processing of reaming place 612 to be set in this conveying duct 611, can improve fabricating cost.
Gas is one fuel easily, is also the fuel that a kind of danger is very high, and what control gas was carried opens assembling device, must have high Security, could allow user obtain higher safety guarantee.Therefore in gas switch, can be provided with overheated locking device, can be when breaking out of fire self-closed gas delivery line.
Model utility content
The purpose of this utility model is to provide a kind of gas switching device, mainly makes the assembling location of spherical valve, super flow locking device more certain, the anxiety of non-loosening displacement.
For reaching above-mentioned purpose, the utility model provides a kind of gas switching device, and it includes: the gas-tight ring of a valve seat body, a spherical valve and these spherical valve both sides, one surpass flow locking device; This valve seat body is formed in one, and it includes the conveying duct of a combustion gas; This spherical valve, gas-tight ring and super flow locking device are all arranged in the conveying duct of this valve seat body; This spherical valve controls the unimpeded of this conveying duct or cuts out by the rotation of a knob; This super flow locking device comprises: the umbrella shape valve rod, that a body, can seal the inner duct of this body makes this umbrella shape valve rod rest on the not pressure-proof spring of closed tube duct state; The front end of the body of this super flow locking device is provided with outside thread, can with the internal screw-thread screw in the conveying duct of this valve seat body, and assemble this super flow locking device; Wherein:
When this super flow locking device is arranged in the conveying duct of this valve seat body, the medial extremity of this body can push up the gas-tight ring of compeling this spherical valve outside, makes this spherical valve and both sides gas-tight ring location thereof; The conveying duct of this valve seat body is provided with a positioning ring, is packing location between this positioning ring and the internal face in this conveying duct; This positioning ring is positioned at the outside of this super flow locking device, and leans the outboard end of the body of this super flow locking device, and the gas-tight ring of this super flow locking device, spherical valve and both sides thereof all cannot be shifted.
Described gas switching device, wherein, the outer wall of this positioning ring is provided with the groove of at least one circle, between the leading edge wall of this groove and the internal face in the conveying duct of this valve seat body, in vertical state, and in the leading edge of this groove, forms the angular that can prevent the reverse movement of this positioning ring.
Described gas switching device, wherein, is more provided with an overheated locking device in the conveying duct of this valve seat body, this overheated locking device is positioned at the outside of this positioning ring; This overheated locking device comprises: an outer central siphon, inserts the interior central siphon in this outer central siphon and is compressed between this outer central siphon and interior central siphon and is the pressure-proof spring that compresses shape; Between pressure-proof spring with cemented this outer central siphon of tin material of solid state, this interior central siphon, this overheated locking device; Its feature exists:
The internal diameter of this positioning ring back segment is then cumulative before serving as reasons; The front end of this interior central siphon is provided with calotte, and the external diameter of this calotte is greater than the minimum diameter of this positioning ring back segment, and the external diameter of this calotte is less than the internal diameter of this positioning ring end; When this tin material dissolves because of excess Temperature, rely on the restoring force of pressure-proof spring interior central siphon can be promoted forward, make the calotte of this interior central siphon front end clamp-on in the aperture of this positioning ring back segment, seal the center through hole of this positioning ring.
Described gas switching device, wherein, the outer wall of this positioning ring is provided with the groove of at least one circle, between the leading edge wall of this groove and the internal face in the conveying duct of this valve seat body, in vertical state, and in the leading edge of this groove, forms the angular that can prevent the reverse movement of this positioning ring.
Described gas switching device, wherein, the outer wall of the outer central siphon of this overheated locking device is connected with three fins with equal angles interval kenel; Rely on the packing between these three fins and the internal face in this conveying duct to coordinate, and fix this overheated locking device.
The utility model also provides a kind of gas switching device, and it comprises and is provided with: the gas-tight ring of a valve seat body, a spherical valve and these spherical valve both sides, one surpass flow locking device and an overheated locking device; This valve seat body is formed in one, and it includes a conveying duct; This spherical valve, gas-tight ring, super flow locking device and overheated locking device are all arranged in the conveying duct of this body; This spherical valve controls the unimpeded of this conveying duct or cuts out by the rotation of a knob; This super flow locking device comprises: the umbrella shape valve rod, that a body, can seal the inner duct of this body makes this umbrella shape valve rod rest on the not pressure-proof spring of closed tube duct state; The front end of the body of this super flow locking device is provided with outside thread, can with the internal screw-thread screw in the conveying duct of this valve seat body, and assemble this super flow locking device; This overheated locking device comprises: an outer central siphon, inserts the interior central siphon in this outer central siphon and is compressed between this outer central siphon and interior central siphon and is the pressure-proof spring that compresses shape; Between pressure-proof spring with cemented this outer central siphon of tin material, this interior central siphon and this overheated locking device of solid state; The front end of this interior central siphon is provided with calotte; Wherein:
When this super flow locking device is arranged in the conveying duct of this valve seat body, the medial extremity of this body can push up the gas-tight ring of compeling this spherical valve outside, makes this spherical valve and both sides gas-tight ring location thereof; The conveying duct of this valve seat body is provided with a positioning ring, is packing location between this positioning ring and the internal face in this conveying duct; This positioning ring is positioned at the outside of this super flow locking device, and leans the outboard end of the body of this super flow locking device, and the gas-tight ring of this super flow locking device, spherical valve and both sides thereof all cannot be shifted; This overheated locking device is positioned at the outside of this positioning ring; The internal diameter of this positioning ring back segment is then cumulative before serving as reasons; The external diameter of the interior central siphon front end calotte of this overheated locking device is greater than the minimum diameter of this positioning ring back segment, is less than the internal diameter of this positioning ring end; When this tin material dissolves because of excess Temperature, rely on the restoring force of this pressure-proof spring that interior central siphon is promoted forward, make the calotte of this interior central siphon front end clamp-on in the aperture of this positioning ring back segment, seal the center through hole of this positioning ring.
Described gas switching device, wherein, the outer wall of this positioning ring is provided with the groove of at least one circle, between the leading edge wall of this groove and the internal face in the conveying duct of this valve seat body, in vertical state, and in the leading edge of this groove, forms the angular that can prevent the reverse movement of this positioning ring.
Described gas switching device, wherein, the outer wall of the outer central siphon of this overheated locking device is connected with three fins with equal angles interval kenel; Rely on the packing between these three fins and the internal face in this conveying duct to coordinate, and fix this overheated locking device.
The beneficial effects of the utility model are: be the gas-tight ring that surpasses this spherical valve of the direct ejection of flow locking device and these spherical valve both sides, and locate.By a positioning ring, support and compel this super flow locking device, and the position of formulating this super flow locking device, spherical valve, gas-tight ring, and do not have the possibility of displacement.So, can assemble appositely in the conveying duct of integrated valve seat body the gas-tight ring of super flow locking device, spherical valve and these spherical valve both sides.
This positioning ring, with respect to carrying duct, is the less combustion gas transport path in aperture.The aperture that the conveying duct at this overheated locking device place is set is greater than the aperture of this positioning ring (reaming kenel), not hinder the conveying of combustion gas.Therefore, need not do reaming processing to the conveying duct of valve seat body, reduce fabricating cost.
Accompanying drawing explanation
Fig. 1 is the External view of prior art;
Fig. 2 is the A-A sectional drawing of figure mono-;
Fig. 3 is the utility model embodiment's sectional drawing;
Fig. 4 is exploded view embodiment illustrated in fig. 3;
Fig. 5 be embodiment illustrated in fig. 3 in, the phase diagram in duct is carried in this super flow locking device sealing combustion gas;
Fig. 6 is part (A) enlarged view of Fig. 5;
Fig. 7 be embodiment illustrated in fig. 3 in, the phase diagram in duct is carried in this overheated locking device sealing combustion gas.
Description of reference numerals: 10-valve seat body; 11-carries duct; 12-knob; 13-brake component; 14-internal thread; 20-spherical valve; 21,22-gas-tight ring; The super flow locking device of 30-; 31-body; 32-umbrella shape valve rod; 33-pressure-proof spring; 34-outside thread; The overheated locking device of 40-; The outer central siphon of 41-; Central siphon in 42-; 43-pressure-proof spring; 44-calotte; 50-positioning ring; 51-groove; 52-angular; 53-back segment internal diameter; 54-end internal diameter; 60-valve seat body; 61-delivery pipe; 611-carries duct; 612-reaming place; 62-spherical valve; 621-gas-tight ring; The super flow locking device of 63-; The overheated locking device of 64-.
Embodiment
Refer to Fig. 3, Fig. 4.The gas switching device that the utility model discloses, it includes: the gas-tight ring of a valve seat body 10, a spherical valve 20 and this spherical valve 20 both sides 21,22, one surpass flow locking device 30, an overheated locking device 40.This valve seat body 10 is formed in one, and it includes a conveying duct 11.On this valve seat body, be equiped with a knob 12.This spherical valve 20, gas-tight ring 21, super flow locking device 30, overheated locking device 40 are all arranged in the conveying duct 11 of this valve seat body 10.This spherical valve 20 is driven by this knob 12, to control the unimpeded of this conveying duct 11 or to close.This knob 12 can drive a brake component 13 to rotate, and this brake component 13 can drive this spherical valve 20 to rotate.Between the gas- tight ring 21,22 of this spherical valve 20 and its both sides, for closely cooperating, between this gas- tight ring 21,22 and the internal face in this conveying duct 11, for closely cooperating, make this spherical valve 20 can positively close combustion gas when duct 11 is carried in sealing.
Described super flow locking device 30 comprises: the umbrella shape valve rod 32, that a body 31, can seal the inner duct of this body makes this umbrella shape valve rod 32 rest on the not pressure-proof spring 33 of closed tube 31 duct states.The front end of the body 31 of this super flow locking device 30 is provided with outside thread 34, can screw togather with the internal thread 14 in the conveying duct 11 of this valve seat body 10, and assemble this super flow locking device 30.When there is holes or coming off in the delivery hose (not shown on figure) of combustion gas, what combustion gas meeting was a large amount of overflows, cause the gas flow rate in this conveying duct 11 to improve, and can promote this umbrella shape valve rod 32, finally by this umbrella shape valve rod 32, sealed the duct of this body 31, and stop exporting combustion gas, state as shown in Figure 5.
Described overheated locking device 40 is arranged on the outside of this super flow locking device 30, and it comprises: an outer central siphon 41, inserts the interior central siphon 42 in this outer central siphon 41 and is compressed between this outer central siphon 41 and interior central siphon 42 and is the pressure-proof spring 43 that compresses shape.Therebetween, with between cemented this outer central siphon 41 of tin material (not shown on figure) of solid state, an interior central siphon 42, pressure-proof spring 43.The front end of this outer central siphon 41 is provided with a calotte 44.The outer wall of outer central siphon 41 is connected with three fins 45 with equal angles interval kenel.By the packing between these three fins 45 and the internal face in this conveying duct 11, coordinate, and fix this overheated locking device 40.
When conveying duct 11 that described super flow locking device 30 is arranged in this valve seat body 10 is interior, the medial extremity of its body 31 can push up the gas-tight ring 21 of compeling these spherical valve 20 outsides, makes this spherical valve 20 and both sides gas- tight ring 21,22 location thereof.In the conveying duct 11 of this valve seat body 10, be provided with a positioning ring 50, between this positioning ring 50 and the internal face in this conveying duct 11, be packing location.This positioning ring 50 is positioned at the outside of this super flow locking device 30, and leans the outboard end of the body 31 of this super flow locking device 30, and the gas- tight ring 21,22 of this super flow locking device 30, spherical valve 20 and both sides thereof all cannot be shifted.
Refer to Fig. 6.The outer wall of this positioning ring 50 is provided with the groove 51 of at least one circle, between the leading edge wall of this groove 51 and the internal face that send duct 11 of this valve seat body 10, in vertical state, and in the leading edge of this groove 50, form the angular 52 that can prevent these positioning ring 50 reverse movements.Tightness between this positioning ring 50 and the internal face in this conveying duct 11, has been enough to prevent that this positioning ring 50 is shifted.The groove 51 that increase can form corner angle 52 arranges, and more can guarantee that this positioning ring 50 can not be shifted.
Described overheated locking device 40 is positioned at the outside of this positioning ring 50.The back segment internal diameter 53 of this positioning ring 50 is then cumulative before serving as reasons.The external diameter of the interior central siphon 42 front end calottes 44 of this overheated locking device 40 is greater than the minimum diameter of these positioning ring 50 back segment internal diameters 53, is less than the internal diameter 54 of these positioning ring 50 ends.When breaking out of fire causes ambient temperature to be elevated to more than 90 ℃, when described tin material can dissolve.Rely on the restoring force of this pressure-proof spring 43 interior central siphon 42 can be promoted forward, make the calotte 44 of these interior central siphon 42 front ends clamp-on in the back segment aperture 53 of this positioning ring 50, the center through hole of sealing this positioning ring 50, state as shown in Figure 7.
Main design of the present utility model is the gas- tight ring 21,22 that surpasses direct this spherical valve 20 of ejection of flow locking device 30 and this spherical valve 20 both sides, and locates.By a positioning ring 50, support and compel this super flow locking device 30, and the position of formulating this super flow locking device 30, spherical valve 20, gas- tight ring 21,22, and do not have the possibility of displacement.So, can assemble appositely in the conveying duct 11 of integrated valve seat body 10 gas- tight ring 21,22 of super flow locking device 30, spherical valve 20 and this spherical valve 20 both sides.
This positioning ring 50, with respect to carrying duct 11, is the less combustion gas transport path in aperture.The aperture that the conveying duct 11 at these overheated locking device 40 places is set is greater than the aperture (reaming kenel) of this positioning ring 50, not hinder the conveying of combustion gas.Therefore, need not do reaming processing to the conveying duct 11 of valve seat body 10, reduce fabricating cost.
The above is to utilize preferred embodiment to describe the utility model in detail, and unrestricted scope of the present utility model.Generally people familiar with these techniques all can understand, suitably does change and adjustment slightly, will not lose main idea of the present utility model place, does not also depart from spirit and scope of the present utility model.
Claims (8)
1. a gas switching device, it includes: the gas-tight ring of a valve seat body, a spherical valve and these spherical valve both sides, one surpass flow locking device; This valve seat body is formed in one, and it includes the conveying duct of a combustion gas; This spherical valve, gas-tight ring and super flow locking device are all arranged in the conveying duct of this valve seat body; This spherical valve controls the unimpeded of this conveying duct or cuts out by the rotation of a knob; This super flow locking device comprises: the umbrella shape valve rod, that a body, can seal the inner duct of this body makes this umbrella shape valve rod rest on the not pressure-proof spring of closed tube duct state; The front end of the body of this super flow locking device is provided with outside thread, can with the internal screw-thread screw in the conveying duct of this valve seat body, and assemble this super flow locking device; It is characterized in that:
When this super flow locking device is arranged in the conveying duct of this valve seat body, the medial extremity of this body can push up the gas-tight ring of compeling this spherical valve outside, makes this spherical valve and both sides gas-tight ring location thereof; The conveying duct of this valve seat body is provided with a positioning ring, is packing location between this positioning ring and the internal face in this conveying duct; This positioning ring is positioned at the outside of this super flow locking device, and leans the outboard end of the body of this super flow locking device, and the gas-tight ring of this super flow locking device, spherical valve and both sides thereof all cannot be shifted.
2. gas switching device as claimed in claim 1, it is characterized in that: the outer wall of this positioning ring is provided with the groove of at least one circle, between the internal face in the leading edge wall of this groove and the conveying duct of this valve seat body, in vertical state, and in the leading edge of this groove, form the angular that can prevent the reverse movement of this positioning ring.
3. gas switching device as claimed in claim 1, is characterized in that: in the conveying duct of this valve seat body, be more provided with an overheated locking device, this overheated locking device is positioned at the outside of this positioning ring; This overheated locking device comprises: an outer central siphon, inserts the interior central siphon in this outer central siphon and is compressed between this outer central siphon and interior central siphon and is the pressure-proof spring that compresses shape; Between pressure-proof spring with cemented this outer central siphon of tin material of solid state, this interior central siphon, this overheated locking device;
The internal diameter of this positioning ring back segment is then cumulative before serving as reasons; The front end of this interior central siphon is provided with calotte, and the external diameter of this calotte is greater than the minimum diameter of this positioning ring back segment, and the external diameter of this calotte is less than the internal diameter of this positioning ring end; When this tin material dissolves because of excess Temperature, rely on the restoring force of pressure-proof spring interior central siphon can be promoted forward, make the calotte of this interior central siphon front end clamp-on in the aperture of this positioning ring back segment, seal the center through hole of this positioning ring.
4. gas switching device as claimed in claim 3, it is characterized in that: the outer wall of this positioning ring is provided with the groove of at least one circle, between the internal face in the leading edge wall of this groove and the conveying duct of this valve seat body, in vertical state, and in the leading edge of this groove, form the angular that can prevent the reverse movement of this positioning ring.
5. gas switching device as claimed in claim 3, is characterized in that: the outer wall of the outer central siphon of this overheated locking device is connected with three fins with equal angles interval kenel; Rely on the packing between these three fins and the internal face in this conveying duct to coordinate, and fix this overheated locking device.
6. a gas switching device, it comprises and is provided with: the gas-tight ring of a valve seat body, a spherical valve and these spherical valve both sides, one surpass flow locking device and an overheated locking device; This valve seat body is formed in one, and it includes a conveying duct; This spherical valve, gas-tight ring, super flow locking device and overheated locking device are all arranged in the conveying duct of this body; This spherical valve controls the unimpeded of this conveying duct or cuts out by the rotation of a knob; This super flow locking device comprises: the umbrella shape valve rod, that a body, can seal the inner duct of this body makes this umbrella shape valve rod rest on the not pressure-proof spring of closed tube duct state; The front end of the body of this super flow locking device is provided with outside thread, can with the internal screw-thread screw in the conveying duct of this valve seat body, and assemble this super flow locking device; This overheated locking device comprises: an outer central siphon, inserts the interior central siphon in this outer central siphon and is compressed between this outer central siphon and interior central siphon and is the pressure-proof spring that compresses shape; Between pressure-proof spring with cemented this outer central siphon of tin material, this interior central siphon and this overheated locking device of solid state; The front end of this interior central siphon is provided with calotte; It is characterized in that:
When this super flow locking device is arranged in the conveying duct of this valve seat body, the medial extremity of this body can push up the gas-tight ring of compeling this spherical valve outside, makes this spherical valve and both sides gas-tight ring location thereof; The conveying duct of this valve seat body is provided with a positioning ring, is packing location between this positioning ring and the internal face in this conveying duct; This positioning ring is positioned at the outside of this super flow locking device, and leans the outboard end of the body of this super flow locking device, and the gas-tight ring of this super flow locking device, spherical valve and both sides thereof all cannot be shifted; This overheated locking device is positioned at the outside of this positioning ring; The internal diameter of this positioning ring back segment is then cumulative before serving as reasons; The external diameter of the interior central siphon front end calotte of this overheated locking device is greater than the minimum diameter of this positioning ring back segment, is less than the internal diameter of this positioning ring end; When this tin material dissolves because of excess Temperature, rely on the restoring force of this pressure-proof spring that interior central siphon is promoted forward, make the calotte of this interior central siphon front end clamp-on in the aperture of this positioning ring back segment, seal the center through hole of this positioning ring.
7. gas switching device as claimed in claim 6, it is characterized in that: the outer wall of this positioning ring is provided with the groove of at least one circle, between the internal face in the leading edge wall of this groove and the conveying duct of this valve seat body, in vertical state, and in the leading edge of this groove, form the angular that can prevent the reverse movement of this positioning ring.
8. gas switching device as claimed in claim 6, is characterized in that: the outer wall of the outer central siphon of this overheated locking device is connected with three fins with equal angles interval kenel; Rely on the packing between these three fins and the internal face in this conveying duct to coordinate, and fix this overheated locking device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573829.1U CN203560519U (en) | 2013-09-16 | 2013-09-16 | Fuel gas switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573829.1U CN203560519U (en) | 2013-09-16 | 2013-09-16 | Fuel gas switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560519U true CN203560519U (en) | 2014-04-23 |
Family
ID=50510240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320573829.1U Expired - Lifetime CN203560519U (en) | 2013-09-16 | 2013-09-16 | Fuel gas switch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886865A (en) * | 2018-09-11 | 2020-03-17 | 陈石明 | Gas switching device |
| CN111336293A (en) * | 2020-03-16 | 2020-06-26 | 成都特恩达燃气设备有限公司 | Air valve |
-
2013
- 2013-09-16 CN CN201320573829.1U patent/CN203560519U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886865A (en) * | 2018-09-11 | 2020-03-17 | 陈石明 | Gas switching device |
| CN111336293A (en) * | 2020-03-16 | 2020-06-26 | 成都特恩达燃气设备有限公司 | Air valve |
| CN111336293B (en) * | 2020-03-16 | 2021-09-28 | 成都特恩达燃气设备有限公司 | Air valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20140423 |