CN2153220Y - Double protective diving type electronic constant temp. heater for aquatic animals box - Google Patents
Double protective diving type electronic constant temp. heater for aquatic animals box Download PDFInfo
- Publication number
- CN2153220Y CN2153220Y CN 93211213 CN93211213U CN2153220Y CN 2153220 Y CN2153220 Y CN 2153220Y CN 93211213 CN93211213 CN 93211213 CN 93211213 U CN93211213 U CN 93211213U CN 2153220 Y CN2153220 Y CN 2153220Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- electric heater
- electric
- heater
- metal tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model relates to a double protective submersible electronic constant temperature heater for aquatic animal boxes, which comprises a metal pipe housing, an electric heater, a temperature sensor and a controller, wherein, the electric heater is fixed at the lower part of the hollow metal pipe housing of which the bottom is sealed by a temperature resistant support. Heat conducting insulating material fillers are filled in a pipe cavity between the electric heater and the metal pipe housing to form a heating section, and the temperature sensor is installed at the upper part in the metal pipe housing to form a temperature sensing section. A pipe orifice at the upper end of the metal pipe housing is sealed by sealing elements in a water sealing mode, and the electric heater and the temperature sensor are electrically connected with the controller through conducting wires. The utility model has the advantages of homogeneous heating area and high heating efficiency.
Description
The utility model relates to a kind of being used for culturing the duplicate protection submersible type aquarium electronic thermostatic heater of the aquarium water temperature automatic constant heating that pet fish uses, and particularly relates to a kind ofly adopting immerging metal tube heater shell structure, electronic temperature sensing constant temperature and having secondary protection function, heating section and the submersible duplicate protection submersible type aquarium electronic thermostatic heater of temperature-sensitive section sealing.
Chinese patent 92 239067.2 discloses a kind of " duplicate protection aquarium electronic thermostatic heater " of the prior art; this heater includes heating tube shell, electric heater, temperature detector and controller and constitutes; its electronic structure part and frame for movement partly adopt monolithic construction; have that temperature control is reliable, compact conformation, characteristics easy to use, change the deficiency that tradition adopts the same device of glass envelope, bimetal contact formula temperature-sensitive.But, because the temperature control box of above-mentioned duplicate protection aquarium electronic thermostatic heater and bringing-up section and temperature-sensitive section are coupled to the integral structure, cause being subjected in the use all restrictions: 1., be placed on and be easy to generate fault after making moist on the aquarium because temperature control box can't seal, and water resistance is poor; Since in water heated hot water all toward rise, cold water sinks, the temperature-sensitive section is limited to and is placed on the water surface, can only sense the water temperature of aquarium middle and upper part, and the water temperature of bottom can't sensing, causes the levels water temperature inhomogeneous; 3. for above-mentioned reasons, in heating process, the hot water come-up, and heater can only vertically be placed along the tubular axis line, the water of epimere still continues heated by heating tube, and the water of hypomere has only the end heating of heating tube, the water temperature of therefore having aggravated levels is inhomogeneous.
The purpose of this utility model is to avoid weak point of the prior art and a kind of homogeneous heating, efficiency of heating surface height is provided; bringing-up section can dive into that heat at the bottom, simultaneously the temperature-sensitive section can be at water-bed temperature detection; can arbitrarily drop into first heated base in the water water, make hot water come-up, quicken water circulation; use more conveniently, add the duplicate protection submersible type aquarium electronic thermostatic heater that thermal effect and temperature-sensitive effect significantly improve.
The purpose of this utility model can reach by following measure: duplicate protection submersible type aquarium electronic thermostatic heater; include the metal tube shell; electric heater; temperature detector and controller constitute; it is characterized in that electric heater is fixed in the bottom in the hollow metal pipe shell of bottom end seal by the heatproof support; tube chamber between electric heater and metal tube shell is filled the heat-conducting insulation material charges and is constituted bringing-up section; the top that temperature detector is installed in the metal tube shell constitutes the temperature-sensitive section; the metal tube shell upper end mouth of pipe is by the seal water tight enclosure, and electric heater and temperature detector connect by lead is electric with controller.The metal tube shell can adopt other metal tubes of stainless steel, copper, aluminium alloy or the antirust processing of process to make; Electric heater can be to adopt heating wire coiling on the support made from heatproof insulating material to make.
The purpose of this utility model can also reach by following measure: can be provided with heat insulation material for sealing between temperature-sensitive section in the metal tube shell inner cavity of duplicate protection submersible type aquarium electronic thermostatic heater and the bringing-up section.
The purpose of this utility model can also reach by following measure: duplicate protection submersible type aquarium electronic thermostatic heater as depicted in figs. 1 and 2; its controller can be to be made of built-in control assembly of control box (10) (6) and outer thermoregulation knob (11) and the attaching plug (12) of box; regulating element mechanical connection in thermoregulation knob (11) and the control box (10), control assembly (6) are by the electric heater (2) in external lead (9) and metal tube shell (1) chamber and temperature detector is electric connects.Controller also can be to be made of the control assembly (6) that directly is built on the interior temperature-sensitive section of metal tube shell (1), control assembly (6) by inner conductors (9) in metal tube shell (1) chamber with electric heater (2) and temperature detector is electric connects.
The purpose of this utility model can also reach by following measure: duplicate protection submersible type aquarium electronic thermostatic heater as depicted in figs. 1 and 2, its temperature detector can be to be made of the temperature-sensing probe that has the heat conduction fin (8).The heat conduction fin can be the elastic heat conducting fin, and temperature-sensing probe (8) can be built-in temperature-sensing probe, temperature-sensitive element is housed in it and connects with the controller loop is electric by lead-in wire.The heat conduction fin plays conductive force on the one hand, plays a supportive role on the other hand, temperature-sensing probe (8) is supported on the inner chamber of metal tube shell.
The purpose of this utility model can also reach by following measure: duplicate protection aquarium electronic thermostatic heater such as Fig. 1, Fig. 2 and shown in Figure 3, the loop of its controller is carried out the electric connection of switch (25), second protection overtemperature movement device (26), temperature-sensing probe open-circuit protecting device (27), work condition indicator (28), electric heater (2) and supply unit (20) by temperature control equipment (21), overtemperature prote control device (22), threshold voltage setting device (23), temperature-sensing probe (8), heating and is constituted.Can adopt the second protection overtemperature device of resistance indirect heating type for second protection overtemperature movement device (26).As shown in Figure 4, this second protection overtemperature movement device (26) can be by the high-power resistance R13 that makes controllable silicon T2, the g that is parallel to T2 that the action switch uses, the resistance R 12 between the k utmost point, the thermal light LED3 that is connected on T2 and integrator Ic2 output and resistance R 11, connects at a of the T2 utmost point and for electric heater Rw(be (2)) the temperature insurance device Ft formation of current path is provided.
The utility model is described in further detail to utilize accompanying drawing:
Fig. 1 is the structural representation of a kind of duplicate protection submersible type aquarium electronic thermostatic heater of the present utility model;
Fig. 2 is the structural representation of a kind of duplicate protection submersible type aquarium electronic thermostatic heater of the present utility model;
Fig. 3 is the electrical principle structure chart of a kind of duplicate protection aquarium electronic thermostatic heater of the present utility model;
Fig. 4 is the electrical structure diagram of a kind of duplicate protection aquarium electronic thermostatic heater of Fig. 3;
Fig. 5 is the electrical structure diagram of a kind of duplicate protection aquarium electronic thermostatic heater of Fig. 3.
Among Fig. 1 and Fig. 2, in the metal tube shell (1), consist of bringing-up section by electric heater (2), heatproof support (3) and heat-conducting insulation material charges (4); Consist of the temperature-sensitive section by heat insulation material for sealing (5) with the temperature-sensing probe (8) of heat conduction fin; Also have control assembly (6), sealing-plug (7), lead (9), control box (10), thermoregulation knob (11) and plug (12).
Carry out switch (25), the action of second protection overtemperature by temperature control equipment (21), overtemperature prote control device (22), threshold voltage setting device (23), temperature-sensing probe (8), heating among Fig. 3 Device (26), temperature-sensing probe open-circuit protecting device (27), work condition indicator (28), electric heater (2) and the electric connection of supply unit (20) consist of the electric loop of controller.
Among Fig. 4 by resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14, temperature-sensing probe Rt(is (8) among Fig. 1 and Fig. 2), electric heater Rw(is (2) among Fig. 1 and Fig. 2), capacitor C 1, C2 and C3, potentiometer W, diode D1, voltage-stabiliser tube Dw, LED 1, LED2 and LED3, controllable silicon T1 and T2, triode BG1, integrator Ic1, Ic2 and Ic3, the electric connection of protector FU and temperature insurance device Ft consists of controller electric loop structure.
Among Fig. 5 by resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16 and R17, temperature-sensing probe Rt1 and Rt2(are (8) among Fig. 1 and Fig. 2), electric heater Rw(is (2) among Fig. 1 and Fig. 2), capacitor C 1, C2 and C3, potentiometer W, diode D1, D2 and D3, voltage-stabiliser tube Dw, LED 1, LED2 and LED3, controllable silicon T1 and T2, triode BG1, integrator Ic1, Ic2, Ic3 and Ic4, the electric connection of protector FU and temperature insurance device Ft consists of controller electric loop structure.
The utility model is described in further detail with the following Examples:
A kind of duplicate protection aquarium electronic thermostatic heater of the present utility model as shown in Figure 4, wherein temperature control equipment (21), overtemperature prote control device (22) and temperature-sensing probe open-circuit protecting device (27) independently are made of Ic1, Ic2, Ic3 respectively; Threshold voltage setting device (23) by potentiometer W, resistance R 1, R2, R3 by being composed in series one tunnel variable voltage divider, and another routing resistance R4, R5 and temperature-sensing probe Rt are composed in series another road variable voltage divider, the first via changes each series connection node voltage by regulating W, and another road is to change by the Rt temperature sensor value of having a resistance to change each series connection node voltage; Heating is carried out switch (25) by resistance R 10, the triode BG1 of controllable silicon T1, the g that is connected in parallel on T1, the k utmost point and be connected on the c utmost point of BG1 and LED 1, R9, the b utmost point that is connected in BG1 and the resistance R 6 between the Ic1 output of the g interpolar of T1 constitute; Secondary overtemperature prote movement device (26) by the high-power resistance R13 that makes controllable silicon T2, the g that is connected in parallel on T2 that the action switch uses, the resistance R 12 between the k utmost point, the thermal light LED3 that is connected on T2 and integrator Ic2 output and resistance R 11, connects at a of the T2 utmost point and for electric heater Rw(be (2)) the temperature insurance device Ft formation of current path is provided; Work indicating status device (28) by be connected on resistance R 7, R8 between Ic1 output and the power supply B+ line, be connected in parallel on LED 2 on the R7 and LED1, R9, LED3, R11 constitute; The a utmost point, another utmost point that electric heater (2) one utmost points meet controllable silicon T1 connect on the tie-point of Ft and R13; Supply unit (20) is made of decompression capacitor C2, discharge resistance R14, voltage-stabiliser tube Dw, the diode D1 that dams, filter capacitor C3, protector FU; one road capacitance decompression, voltage-stabiliser tube voltage stabilizing be for confessing the voltage that is fit to circuit working between circuit B+ point and the negative pole D point, another road provides heating power supply and provides working power for protective device for electric heater Rw by Ft.
The operation principle of above-mentioned duplicate protection aquarium electronic thermostatic heater is: integrator Ic1; Ic2; Ic3 is respectively as temperature; overtemperature prote; the detection voltage comparator of temperature-sensing probe open circuit; all has a positive input terminal; one negative input end and an output; when positive input terminal voltage is higher than negative input end; its output presents low level state; dividing point A from threshold voltage setting device (23); be connected to the positive input terminal of Ic1 and Ic2 simultaneously; dividing point B then is connected to the negative input end of Ic1; B point current potential is then determined according to the resistance that different temperature presents by Rt; if regulate W; when the current potential that A is ordered is higher than the B point; the Ic1 output will present high level; and provide a conducting electric current to BG1 by R6; BG1 conducting electric current will pass through LED1; R9 provides the control electric current of conducting for T1; the T1 conducting makes Rw that water is heated; water also passes to temperature-sensing probe Rt with its temperature by temperature-sensitive pipe under water simultaneously; water temperature raises; the Rt resistance reduces; B point current potential can raise; when B point current potential during greater than A point current potential; the Ic1 output presents low level BG1 and ends; T1 also turn-offs because of triggerless control electric current; Rw stops heating; when water temperature descends; the Rt resistance increases, and B point current potential has decline, and Rw heats again when being lower than the A point; so circulation makes water temperature keep constant.Therefore can reach the adjusting water temperature by regulator potentiometer.
Because the positive input terminal of Ic2 also is to be connected on the A point; its negative input end then is connected on than on the low C point of B point; at Ic1 and temperature control part just often; B point current potential needs only a little higher than A point heating just to be stopped; C point current potential always is lower than the A point; the logic input terminal of Ic2 is always positive high negative low, and its output also always presents high level, and the switch T2 of secondary overtemperature prote action can not get trigger current and keeps off state.But just in case the temperature control part lost efficacy, T1 puncture etc., Rw still switches on than the A point is high to make B point current potential, water temperature will continue to raise and make the Rt resistance continue to reduce, B point current potential continues to raise, and C point current potential also increases, when rising to when being higher than A point current potential, Ic2 input comparative result will make its output present low level, T2 obtains trigger current and conducting, and the indirect resistance R 13 that is connected on its a utmost point will be generated heat, and the temperature insurance device Ft that is right after thereon is heated, fusing when Ft reaches 80-140 ℃, and the power supply that cuts off R13 and Rw is prevented heating, prevents the unrestricted rising of water temperature effectively.
Ic3 is the protection control of temperature-sensing probe open circuit; the interface B of its positive input termination temperature-sensing probe Rt; its negative input end then meets threshold voltage dividing potential drop output point E; no matter how W and the resistance of Rt in the normal temperature scope change when the circuit operate as normal; E point current potential is not higher than the B point, and the Ic3 output keeps presenting high level, because the Ic3 output connects with the Ic1 output is or door shutoff control; be output as high level as Ic3, then the variation of F level point is just determined by the Ic1 output.For preventing temperature-sensing probe Rt open circuit; B point current potential becomes almost nil; though electric heater heats always; but B point current potential can't raise; T1 leads together for a long time; make the constantly situation appearance of heating of Rw; utilize the temperature-sensing probe open-circuit protecting device when the B point becomes almost nil, though and E point current potential is very low, but still exist certain potentials higher than the B point; Ic3 input logic comparative result is that output presents low level; this moment, no matter which kind of state Ic1 output was in, and F point current potential is low, and T1 is ended; stop the Rw heating, prevented the unrestricted rising of water temperature equally.
A kind of duplicate protection aquarium electronic thermostatic heater of the present utility model as shown in Figure 5; adopted the structure of dual temperature-sensing probe, dual temperature control and overtemperature prote; use integrator Ic1, Ic3 to do dual temperature control, used integrator Ic2, Ic4 to do dual overtemperature prote control simultaneously.Owing to adopted dual temperature-sensing probe to detect; dual temperature control and overtemperature prote; temperature controlling is more reliable; the reliability of overtemperature prote also more improves; thereby cancelled the temperature-sensing probe open-circuit protecting device; and thermal light is reported to the police and overtemperature action protection grading control; if the control of the temperature of heating is not normal; water temperature raises 2-3 ℃ the time a little, and thermal light action is earlier reported to the police, and informs that in time the user fixes a breakdown; if unmanned discovery the after a period of time; temperature continues to raise and makes the secondary overtemperature protection device begin action, with temperature insurance device fusing, can avoid all needing to change the trouble of temperature insurance device like this behind overtemperature.
The utility model compared with prior art has following advantage:
(1) homogeneous heating, efficiency of heating surface height;
(2) bringing-up section can dive into that heat at the bottom, simultaneously the temperature-sensitive section can be at water-bed temperature detection;
(3) can arbitrarily drop into first heated base in the water water, make hot water come-up, accelerate water circulation;
(4) use is more convenient;
(5) heating effect and temperature-sensitive effect significantly improve.
Claims (9)
1, a kind of duplicate protection submersible type aquarium electronic thermostatic heater; including metal tube shell, electric heater, temperature detector and controller constitutes; it is characterized in that electric heater is fixed in the bottom in the hollow metal pipe shell of bottom end seal by the heatproof support; tube chamber between electric heater and metal tube shell is filled the heat-conducting insulation material charges and is constituted bringing-up section; the top that temperature detector is installed in the metal tube shell constitutes the temperature-sensitive section; the metal tube shell upper end mouth of pipe is by the seal water tight enclosure, and electric heater and temperature detector connect by lead is electric with controller.
2, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 1 is characterized in that being provided with heat insulation material for sealing between temperature-sensitive section in the metal tube shell inner cavity and the bringing-up section.
3, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 1; it is characterized in that said controller is made of built-in control assembly of control box and outer thermoregulation knob and the attaching plug of box; regulating element mechanical connection in thermoregulation knob and the control box, control assembly are by the interior electric heater of external lead and metal tube outer shell cavity and temperature detector is electric connects.
4, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 1; it is characterized in that said controller is that control assembly constitutes on the temperature-sensitive section by directly being built in the metal tube shell, control assembly by inner conductors in the metal tube outer shell cavity with electric heater and temperature detector is electric connects.
5, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 1 and 2 is characterized in that said temperature detector is made of the temperature-sensing probe that has the heat conduction fin (8).
6, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 5; it is characterized in that said heat conduction fin is the elastic heat conducting fin, said temperature-sensing probe (8) is built-in temperature-sensing probe, temperature-sensitive element is housed in it and connects with the controller loop is electric by lead-in wire.
7, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 1 and 2 is characterized in that the electric connection formation of switch (25), second protection overtemperature movement device (26), temperature-sensing probe open-circuit protecting device (27), work condition indicator (28), electric heater (2) and supply unit (20) is carried out by temperature control equipment (21), overtemperature prote control device (22), threshold voltage setting device (23), temperature-sensing probe (8), heating in the loop of said controller.
8, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 7 is characterized in that said second protection overtemperature movement device (26) is the second protection overtemperature device of resistance indirect heating type.
9, duplicate protection submersible type aquarium electronic thermostatic heater according to claim 8, it is characterized in that said second protection overtemperature movement device (26) be by the high-power resistance R13 that makes controllable silicon T2, the g that is parallel to T2 that the action switch uses, the resistance R 12 between the k utmost point, the thermal light LED3 that is connected on T2 and integrator Ic2 output and resistance R 11, connects at a of the T2 utmost point and for electric heater Rw(be (2)) the temperature insurance device Ft formation of current path is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211213 CN2153220Y (en) | 1993-04-22 | 1993-04-22 | Double protective diving type electronic constant temp. heater for aquatic animals box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93211213 CN2153220Y (en) | 1993-04-22 | 1993-04-22 | Double protective diving type electronic constant temp. heater for aquatic animals box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2153220Y true CN2153220Y (en) | 1994-01-19 |
Family
ID=33792898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93211213 Expired - Fee Related CN2153220Y (en) | 1993-04-22 | 1993-04-22 | Double protective diving type electronic constant temp. heater for aquatic animals box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2153220Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105075968A (en) * | 2015-09-01 | 2015-11-25 | 北京航之境科技有限公司 | Intelligent heating bar and aquarium |
| CN106719286A (en) * | 2016-12-29 | 2017-05-31 | 中山市小榄镇精邦电器有限公司 | Heater and the aquarium using heater |
| CN109077012A (en) * | 2018-10-15 | 2018-12-25 | 南安市方建机械科技有限公司 | A kind of temperature control device of winter subglacial auxiliary fry feed |
| CN109430154A (en) * | 2018-12-05 | 2019-03-08 | 航之境电子产品（天津）有限公司 | A kind of temperature control device for aquarium heating |
-
1993
- 1993-04-22 CN CN 93211213 patent/CN2153220Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105075968A (en) * | 2015-09-01 | 2015-11-25 | 北京航之境科技有限公司 | Intelligent heating bar and aquarium |
| CN105075968B (en) * | 2015-09-01 | 2018-04-06 | 北京航之境科技有限公司 | A kind of Intelligent heating rod and aquarium |
| CN106719286A (en) * | 2016-12-29 | 2017-05-31 | 中山市小榄镇精邦电器有限公司 | Heater and the aquarium using heater |
| CN109077012A (en) * | 2018-10-15 | 2018-12-25 | 南安市方建机械科技有限公司 | A kind of temperature control device of winter subglacial auxiliary fry feed |
| CN109077012B (en) * | 2018-10-15 | 2021-03-09 | 广州优讯环保科技有限公司 | Temperature control device for assisting fry feeding under ice in winter |
| CN109430154A (en) * | 2018-12-05 | 2019-03-08 | 航之境电子产品（天津）有限公司 | A kind of temperature control device for aquarium heating |
| CN109430154B (en) * | 2018-12-05 | 2024-04-02 | 航之境电子产品（天津）有限公司 | Temperature control device for heating aquarium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8680442B2 (en) | Systems and methods for a temperature-controlled electrical outlet | |
| US4208570A (en) | Thermostatically controlled electric engine coolant heater | |
| US4358667A (en) | Cartridge-type electric immersion heating element having an integrally contained thermostat | |
| US3422244A (en) | Electric blanket with a temperature responsive control circuit | |
| US4216411A (en) | Underwater light assembly with low-water cut-off | |
| US3746836A (en) | Aquarium heater | |
| US6097007A (en) | Aquarium water temperature controller | |
| MXPA02000276A (en) | Water heater having dual side-by-side heating elements. | |
| CN2153220Y (en) | Double protective diving type electronic constant temp. heater for aquatic animals box | |
| US3931620A (en) | Temperature-responsive alarm control circuit | |
| US6584280B1 (en) | Aquarium heater | |
| CN2133138Y (en) | Electronic constant temp. heating unit with double protection for aquatic animals box | |
| US20010046380A1 (en) | Submersible heater | |
| CN1925700A (en) | Explosion-proof electric hot-water bottle | |
| US4025755A (en) | Thermostatic electric cable heater | |
| CN109430154B (en) | Temperature control device for heating aquarium | |
| CN212937430U (en) | Safe and intelligent fish tank heating rod | |
| CN101341795A (en) | Water heater for aquarium | |
| CN2591499Y (en) | Instant heating thermosensitive ceramic electric water heater | |
| KR20010001178U (en) | heating apparatus of piping | |
| WO2005091680A1 (en) | Portable submerged heaters | |
| CN219104208U (en) | Energy-saving dry-burning-preventing temperature sensor for household appliances | |
| CN216409108U (en) | Electric fire box safety controller based on internet of things technology | |
| CN2121005U (en) | Electronic temp.-control sn melter | |
| GB2224189A (en) | Tubular electric heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |