CN1069005A - The device for opening and closing gate case of concrete pump - Google Patents
The device for opening and closing gate case of concrete pump Download PDFInfo
- Publication number
- CN1069005A CN1069005A CN92102619A CN92102619A CN1069005A CN 1069005 A CN1069005 A CN 1069005A CN 92102619 A CN92102619 A CN 92102619A CN 92102619 A CN92102619 A CN 92102619A CN 1069005 A CN1069005 A CN 1069005A
- Authority
- CN
- China
- Prior art keywords
- concrete
- cylinder barrel
- gate
- opening
- hopper
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
- F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The present invention relates to the device for opening and closing gate case of concrete pump.Switch by operation control panel, remove opening/closing lock device 11, make subsequently and open and close 4 actions of oil pressure cylinder barrel, with in vertical direction fulcrum (tubular shafts) 6 roughly as the center of oscillation axle, with hopper 8 and with it all-in-one-piece gate cover 14 and concrete delivery pipe 16 etc. open to the horizontal direction outside, discharge the cement concretes that remain in hopper 8 and the gate cover 14.
Description
The invention relates to the opening and closing device of concrete pump gate cover.
The example that now will install before describes with reference to Fig. 5.
During remaining cement concrete discharge in the hopper 01 of concrete pump and in the gate cover 021, be to open discharge with being located at the hopper bottom 023 that gate overlaps 021 bottom.
In order to discharge cement concrete remaining in the delivery pipe, owing to will dismantle the fitting 026 of the delivery pipe 027 that is divided into plurality of sections, delivery pipe 027 is made the structure that can decompose.
In the end of the cement concrete cylinder barrel 06 of taking in concrete piston 07 side, become integrally disposing to make oscillating type to switch the actuating device (arm 018 and gate switch oil hydraulic cylinder 019) of pipe 025 swing.
On real public clear 63-50464 communique, also publish gate shifter just like Fig. 6, concrete pump shown in Figure 7.
In Fig. 6, Fig. 7, the 01st, hopper, the 02nd, the gate cover of fixing in this hopper lower end, this gate overlap 02 single-piece section and are J-shaped.In addition, the 03rd, be positioned at the roughly S-shaped swing pipe of seeing by the side of this gate cover 02, the 04th, the cylinder barrel of on above-mentioned hopper 01 and above-mentioned gate cover 02, fixing that is used for mobile swing pipe, the other end of above-mentioned swing pipe 03 (outer end) 03a and the piston 03b that is provided with in this other end 03a one side, in the cylinder barrel 04 that is used for mobile this swing pipe, it can be that the center is swung and moved along this center of oscillation line A with the center of oscillation line A of this swing pipe 03 that this swing pipe 03 is made by intercalation sliding freely.And, the 05th, the swing bar of fixing in the outermost end of above-mentioned swing pipe 03,06a, 06b are the cement concrete cylinder barrels that overlaps 02 inner opening at above-mentioned gate, the above-mentioned gate that extends to the sucking hole of this cement concrete cylinder barrel 06a, 06b from above-mentioned hopper 01 overlaps 02 last facial 02a and lower face 02b, forms curved surface along above-mentioned swing pipe 03.Other 07 is concrete piston, the 08th, concrete delivery pipe, the 09th, the outermost end of above-mentioned swing pipe 03 is installed in joint on this concrete delivery pipe 08 swingably, the 10th, move with the pressure oil that is provided with on the cylinder barrel 04 to row's mouth at above-mentioned swing pipe, the 11st, above-mentioned swing pipe moves with the hydraulic chamber in the cylinder barrel 04, swing is pushed to left with the upper end of bar 05 by fluid pressure drive device (not shown on the figure), swing pipe 03 is that the center is to right-hand swing from center of oscillation line A, when cement concrete cylinder barrel 06a joins with concrete delivery pipe 08 by this swing pipe 03, then cement concrete cylinder barrel 06a is in the output operation, cement concrete cylinder barrel 06b is in inhalation process, ready-mixed concrete in the hopper 01 is inhaled in the cement concrete cylinder barrel 06b, and the ready-mixed concrete in the cement concrete cylinder barrel 06a then transfers to concrete delivery pipe 08 by swing pipe 03.If swing pipe is pushed to right-hand with the upper end of bar 05 by fluid pressure drive device, swing pipe 03 is that swing to left at the center with center of oscillation line A, cement concrete cylinder barrel 06b is connected with concrete delivery pipe 08 by this swing pipe 03, then cement concrete cylinder barrel 06a and cement concrete cylinder barrel 06b enter inhalation process and output operation respectively, and the suction of ready-mixed concrete and output resume carry out.When the position of swing pipe 03 is switched in addition, then give row's mouth 10 supply pressure oil in swing pipe moves with the oil pressure pipe 11 in the cylinder barrel 04 from pressure oil, swing pipe 03 is pushed to cement concrete cylinder barrel direction along center of oscillation line A.When exporting ready-mixed concrete afterwards, swing pipe 03, does not move to that direction even be pushed to concrete delivery pipe 08 direction owing to be subjected to the resistance of ready-mixed concrete yet, the end of the cement concrete cylinder barrel side of swing pipe 03 continues to be close to the cement concrete cylinder barrel, thereby prevents the ready-mixed concrete leakage.Output one finishes, and swing pipe moves the pressure oil of using in the cylinder barrel 04 and gives row's mouth 010 from hydraulic chamber 011 through pressure oil, and to cylinder barrel 04 outside the discharge, so swing pipe 03 can be swung, swing pipe 03 carries out the position and switches.
Above-mentioned technology before has following problem.
When carrying out the field-strip of delivery pipe and related with it accessory etc., because of delivery pipe and accessory etc. are very heavy, operating personal will carry out heavy physical labour.When changing consumable product in addition, the gate cover be must decompose, labour and time also needed.
And and this apportioned effort carry out when having beaten cement concrete in the building ground at every turn, so be very big to operating personnel's burden.
Because the actuating device that makes oscillating type switch the pipeline swing is end one side that is configured in the cement concrete cylinder barrel as one, so the interface more complicated of cement concrete cylinder barrel and gate cover is carried out both decomposition and is not easy very much.
The object of the invention is to provide the opening and closing device of the concrete pump gate cover of laborsavingization of operation such as replacing that make concrete discharge remaining in hopper and the gate cover, consumable product.
Concrete pump device for opening and closing gate case of the present invention has following array structure.
(1). the end that structure is characterised in that gate covering devices such as will comprising hopper, gate cover is by in vertical direction fulcrum roughly, can open and close the ground pivot to horizontal direction facing to the cement concrete cylinder barrel and prop up, with the peristome of above-mentioned gate cover make can with the peristome bonded assembly structure of above-mentioned cement concrete cylinder barrel.
(2). in the device of aforementioned (1), it is characterized in that: above-mentioned fulcrum is made hollow, make concrete delivery pipe portion's perforation within it.
(3). in the device of above-mentioned (1), it is characterized in that: be equipped with S shape swing pipe between cement concrete cylinder barrel and the concrete delivery pipe.
(4). structure is characterised in that: an end that will comprise gate covering devices such as hopper, gate cover, by in horizontal direction fulcrum roughly, can open and close the ground pivot to vertical direction facing to the cement concrete cylinder barrel and prop up, the peristome of above-mentioned gate cover is made and can be connected with the peristome of above-mentioned cement concrete cylinder barrel.
(5). in the device of aforementioned (4), it is characterized in that: between cement concrete cylinder barrel and the concrete delivery pipe, have S shape swing pipe.
(6) in the device of aforementioned (4), it is characterized in that: fulcrum is the tubular shafts that is supported on the concrete delivery pipe.
Aforementioned (1) is to the device for opening and closing gate case of the concrete pump of the present invention of (3), switch by operation control panel, remove opening/closing lock device, make subsequently and open and close the action of oil pressure cylinder barrel, with in vertical direction fulcrum roughly is the center of oscillation axle, to comprise that gate covering device sides outside horizontal direction such as hopper and gate cover open, remain in the hopper and the gate cover in remaining cement concrete discharge immediately.
Aforementioned (4) are to the device for opening and closing gate case of the concrete pump of the present invention of (6), by opening and closing the action of oil pressure cylinder barrel, with in horizontal direction fulcrum roughly is the center of oscillation axle, open gate covering device side outside vertical direction that will comprise hopper and gate cover etc., remains in the remaining cement concrete that reaches in the gate in the hopper and discharge immediately.
With reference to the accompanying drawings, further specify the present invention by description to the embodiment of the invention.
Fig. 1 represents the biopsy cavity marker devices oblique drawing of closed condition of embodiment 1 of the device for opening and closing gate case of the concrete pump that the present invention relates to;
Fig. 2 represents the partial cutaway view of above-mentioned device for opening and closing gate case open state;
Fig. 3 represents the skeleton diagram of embodiment 2 of the device for opening and closing gate case of the concrete pump that the present invention relates to;
Fig. 4 represents the open and-shut mode instruction diagram of this device for opening and closing gate case;
Fig. 5 represents the biopsy cavity marker devices oblique drawing of the device for opening and closing gate case of concrete pump before;
Fig. 6 represents the section-drawing of another kind of before concrete pump device for opening and closing gate case;
VII-the VII of Fig. 7 presentation graphs 6 is to view.
With the device for opening and closing gate case of the concrete pump of the embodiment of the invention 1, describe below with reference to Fig. 1, Fig. 2.1, the 1st, a pair of concrete piston, 2, the 2nd, a pair of cement concrete cylinder barrel of these concrete pistons 1 is housed, 2a, 2a are the axis of these cement concrete cylinder sleeves 2,19 are mounted in the framework of the peristome of above-mentioned each cement concrete cylinder barrel 2,3, the 3 tubulose bearings that are mounted on this framework 19, the 4th, open and close the oil pressure cylinder barrel, the 5th, arm, the 6th, comprise the tubular shafts (fulcrum) of this arm 5, this tubular shafts (fulcrum) the 6th can be supported on the framework 19 pivotally by above-mentioned each tubulose bearing 3.The 30th, the horizontal surface that axis 2a, the 2a of above-mentioned cement concrete cylinder barrel 2 forms, axis and this horizontal surface of above-mentioned tubular shafts (fulcrum) 6 roughly are orthogonal.
The 7th, concrete delivery pipe, the 8th, hopper, the 9th, S shape swing pipe drives cylinder barrel, the 10th, arm, the 11st, opening/closing lock device, the 12nd, the pin shelves, the 13rd, S shape swing pipe, the 14th, with above-mentioned hopper 8 all-in-one-piece gate covers, the 15th, swing pipe supporting sleeve, the 16, the 17th, delivery pipe, an end that comprises the gate covering device of hopper 8, gate cover 14 etc., by in vertical direction tubular shafts (fulcrum) 6 roughly, can open and close the ground pivot to horizontal direction facing to cement concrete cylinder barrel 2 and prop up, the peristome of gate cover 14 make can with the peristome bonded assembly structure of cement concrete cylinder barrel 2.2.In addition, concrete delivery pipe 17 is to connect in above-mentioned roughly in vertical direction tubular shafts (fulcrum) 6.
Below, to the work of the device for opening and closing gate case of above-mentioned Fig. 1, concrete pump shown in Figure 2 as specifying.
By the switch on the operation control panel (not shown on the figure), remove opening/closing lock device 11, open and close 4 actions of oil pressure cylinder barrel subsequently, with in vertical direction tubular shafts 6 roughly is the center of oscillation axle, make hopper 8 and with it all-in-one-piece concrete delivery pipe 16 and gate running-on side part, be that delivery pipe 107 can move (revolution) independently.Switching mechanism as gate cover 114, at the framework (diagram is omitted) of supporting cement concrete cylinder sleeve 102 and become on the arm 105 of tubular shafts 106 of hinge axis and assembling switching oil pressure cylinder barrel 104, open and close the expanding-contracting action of oil pressure cylinder barrel 104 by this, gate cover 114 is opened and closed.In addition, the opening/closing lock device 111 that gate overlaps 114 bottoms is pins 117 of the end installation wedge shape of the piston rod (diagram is omitted) at the oil pressure cylinder barrel, when gate cover 114 is closed, this pin 117 is by the oil pressure of opening/closing lock device 111, be pushed into and be located at gate and overlap in the hole of pin shelves 112 of 114 sides, make gate cover 114 be limited fully and be crimped on the cement concrete cylinder barrel 102, careless reduction air-tightness such as to prevent when delivering concrete move.In addition, this opens and closes oil pressure cylinder barrel 104 and opening/closing lock device 111, owing to be to make it action by process controller (diagram is omitted), so an available switch automatically opens and closes operation.
Because above such structure, the remaining cement concretes that pour in the back brake door pocket 114 that is over are easy to discharge, also needn't pull down simultaneously delivery pipe (need not decompose), only insert sponge etc., utilize air pressure or hydraulic pressure that the cement concrete in the delivery pipe is discharged to S shape swing pipe 113.
The device for opening and closing gate case of concrete pump of the present invention, switch by operation control panel, opening/closing lock device is removed, make subsequently and open and close the action of oil pressure cylinder barrel, fulcrum with the approximate vertical direction is the center of oscillation axle, the gate covering device that will comprise hopper and gate cover etc. is opened to the horizontal direction outside, discharge remains in the hopper and the interior remaining cement concrete of gate cover, so for the cement concrete cylinder barrel, the gate cover can be opened very big, can discharge remaining cement concrete at an easy rate, change consumable part.
Secondly, total weight with the gate cover whole device of all-in-one-piece (hopper, delivery pipe etc.), there is no need directly to support by opening and closing the oil pressure cylinder barrel, so can reach in the lump device 14 outside horizontal direction the side open (with reference to Fig. 2), discharge the remaining cement concretes remain in hopper 8 and the gate cover 14.
The device for opening and closing gate case of the concrete pump of embodiments of the invention 2, with reference to Fig. 3, Fig. 4 is illustrated.
The 101st, concrete piston, the 102.102nd, take in concrete piston 1,2 cement concrete cylinder barrels that disposing parallel to each other, the 103rd, the tubulose bearing that is roughly disposing in horizontal direction, the 104th, open and close the oil pressure cylinder barrel, the 105th, arm, the 106th, tubular shafts, 107,116,128th, delivery pipe, the 108th, hopper, the 109th, the driving oil pressure cylinder barrel of S shape swing pipe, the 110th, arm, the 111st, opening/closing lock device, the 112nd, pin shelves, the 113rd, S shape swing pipe, the 114th, gate cover, the 115th, S shape swing pipe supporting sleeve, the 117th, pin.
The hopper 108 of the concrete pump after the transmission and concrete transmission end of job for discharge gate cover 114 and delivery pipe 116 isostructural remaining cement concretes with change consumable product, must overlap the bottom gate of hopper 108 114 parts and open greatly greatly and close.
Thereby, overlap 114 sides at gate, the actuating device of hopper 108, gate cover 114, delivery pipe 116 and S shape swing pipe 113 etc. is made integral structure.Overlap 114 sides and cement concrete cylinder barrel 102 sides for opening and closing shutter in addition, both are coupled together with the hinge (assembly of tubulose bearing 103 and tubular shafts 106) that is level haply.
The structure of this hinge is: with cross sectional shape is hollow person, and delivery pipe 128 portion within it passes through, and delivery pipe 128 is to connect with figure to go up delivery pipe 107 that unshowned cantilever connects and delivery pipe 116.In addition, delivery pipe 128 becomes one by its in-to-in tubular shafts 106 and gate cover 114, therefore carries out identical action with gate cover 114 when on-off action.So tubular shafts 106 goes out miniaturization, lightweight and cost-cutting from tubulose bearing 103.
Also have, when discharging remaining cement concrete and when changing consumable part, hopper and gate cover are side shiftings outside horizontal direction, can not arrive on the operating personnel crown, so the operating personnel can not be forced to take uncomfortable work posture, do not have constriction yet,, can take more easily posture to carry out apace the replacing operation of remaining concrete discharge operation and consumable part.In addition, when opening hopper, gate cover, delivery pipe etc. also there is no need to dismantle.
Also have, the device for opening and closing gate case of concrete pump of the present invention, by opening and closing the action of oil pressure cylinder barrel, with in horizontal direction fulcrum roughly is the center of oscillation axle, to comprise that gate covering device sides outside vertical direction such as hopper and gate cover open, discharge the remaining cement concrete that remains in hopper and the gate cover.
Therefore, for the cement concrete cylinder barrel, can open very greatly, so the operation of discharging remaining cement concrete and changing consumable part etc. is easy to for gate cover, gate covering device.
When opening hopper, there is no need to unload throttle valve cover, delivery pipe etc.In addition, because will simplify the structure, also make and load onto driven for opening and closing device etc. and become possibility.
Claims (6)
1, a kind of device for opening and closing gate case of concrete pump, it is characterized in that: an end that will comprise gate covering devices such as hopper, gate cover, by in vertical direction fulcrum roughly, can open and close the ground pivot to horizontal direction facing to the cement concrete cylinder barrel and prop up, with the peristome of above-mentioned gate cover make can with the peristome bonded assembly structure of above-mentioned cement concrete cylinder barrel.
2, according to the device for opening and closing gate case of the concrete pump of record in the claim 1, it is characterized in that: aforesaid fulcrum is made hollow, make concrete delivery pipe portion's perforation within it.
3, according to the device for opening and closing gate case of the concrete pump of record in the claim 1, it is characterized in that: configuration S shape swing pipe between cement concrete cylinder barrel and the concrete delivery pipe.
4, a kind of device for opening and closing gate case of concrete pump, it is characterized in that: an end that will comprise gate covering devices such as hopper, gate cover, by in horizontal direction fulcrum roughly, can open and close the ground pivot to vertical direction facing to the cement concrete cylinder barrel and prop up, with the peristome of above-mentioned gate cover make can with the peristome bonded assembly structure of above-mentioned cement concrete cylinder barrel.
5, according to the device for opening and closing gate case of the concrete pump of record in the claim 4, it is characterized in that: between cement concrete cylinder barrel and concrete delivery pipe, have S shape swing pipe.
6, according to the device for opening and closing gate case of the concrete pump of record in the claim 4, it is characterized in that: fulcrum is the tubular shafts that is supported on the concrete delivery pipe.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP190110/91 | 1991-07-30 | ||
| JP3190110A JPH0533758A (en) | 1991-07-30 | 1991-07-30 | Side entrance opening/closing device for gate housing of concrete pump |
| JP3-190110 | 1991-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1069005A true CN1069005A (en) | 1993-02-17 |
| CN1028792C CN1028792C (en) | 1995-06-07 |
Family
ID=16252548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92102619A Expired - Fee Related CN1028792C (en) | 1991-07-30 | 1992-04-09 | Device for opening and closing gate case of concrete pump |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH0533758A (en) |
| KR (1) | KR960009852B1 (en) |
| CN (1) | CN1028792C (en) |
| DE (1) | DE4211850C2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346070C (en) * | 2001-11-14 | 2007-10-31 | 粉刷师股份公司 | Material feeding container for two-cylinder thick matter pumps |
| CN112879261A (en) * | 2021-03-01 | 2021-06-01 | 胡兵 | Concrete pump with ultrahigh lift |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071390A (en) * | 1991-10-04 | 1993-04-28 | 三菱重工业株式会社 | The gate-valve device of concrete pump |
| DE4323800C1 (en) * | 1993-07-15 | 1995-01-05 | Mitsubishi Heavy Ind Ltd | Control arrangement for a pressure mechanism of an S-shaped slide valve |
| KR100377861B1 (en) * | 2000-07-07 | 2003-03-29 | 한학수 | A composition for forming dielectric thin film or thin film-type package on electronic device or chip |
| US20030127854A1 (en) * | 2002-01-08 | 2003-07-10 | Lehnhardt Gary D. | Method and apparatus for a line concrete pumping system |
| US6758500B2 (en) | 2002-04-19 | 2004-07-06 | Construction Forms, Inc. | Flared ends conduit coupling |
| CN109372237B (en) * | 2018-12-07 | 2024-04-19 | 福建闽华建材科技发展有限公司 | Cement cementing material construction equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2841514A1 (en) * | 1978-09-23 | 1980-04-24 | Italiana Forme Acciaio | Changeover swivel valve for twin-cylinder concrete pump - uses hydraulic cylinder for lifting from sealing contact with pump cylinder seat during changeover movement |
| DE3343502A1 (en) * | 1982-12-22 | 1984-06-28 | Gerd Wolfgang 6360 Friedberg Schellenberg | Slide valve for a piston pump, in particular for delivering concrete |
| DE4310985A1 (en) * | 1993-04-03 | 1994-10-06 | Blaupunkt Werke Gmbh | Circuit arrangement for damping a digital audio signal during the occurrence of short-term disturbances |
-
1991
- 1991-07-30 JP JP3190110A patent/JPH0533758A/en not_active Withdrawn
-
1992
- 1992-04-07 KR KR1019920005738A patent/KR960009852B1/en not_active IP Right Cessation
- 1992-04-08 DE DE4211850A patent/DE4211850C2/en not_active Expired - Fee Related
- 1992-04-09 CN CN92102619A patent/CN1028792C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346070C (en) * | 2001-11-14 | 2007-10-31 | 粉刷师股份公司 | Material feeding container for two-cylinder thick matter pumps |
| CN112879261A (en) * | 2021-03-01 | 2021-06-01 | 胡兵 | Concrete pump with ultrahigh lift |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0533758A (en) | 1993-02-09 |
| CN1028792C (en) | 1995-06-07 |
| KR960009852B1 (en) | 1996-07-24 |
| KR930002211A (en) | 1993-02-22 |
| DE4211850C2 (en) | 1996-08-08 |
| DE4211850A1 (en) | 1993-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| 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 |