CN1155769C - 压力/流量控制阀 - Google Patents
压力/流量控制阀 Download PDFInfo
- Publication number
- CN1155769C CN1155769C CNB001038907A CN00103890A CN1155769C CN 1155769 C CN1155769 C CN 1155769C CN B001038907 A CNB001038907 A CN B001038907A CN 00103890 A CN00103890 A CN 00103890A CN 1155769 C CN1155769 C CN 1155769C
- Authority
- CN
- China
- Prior art keywords
- valve
- hole
- pressure
- flow
- pressure fluid
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/0413—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed in one direction only, with no control in the reverse direction, e.g. check valve in parallel with a throttle valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/46—Control of flow in the return line, i.e. meter-out control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/47—Flow control in one direction only
- F15B2211/473—Flow control in one direction only without restriction in the reverse direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/47—Flow control in one direction only
- F15B2211/476—Flow control in one direction only the flow in the reverse direction being blocked
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
- F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/75—Control of speed of the output member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7504—Removable valve head and seat unit
- Y10T137/7613—Threaded into valve casing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7771—Bi-directional flow valves
- Y10T137/7778—Axes of ports perpendicular
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7859—Single head, plural ports in parallel
- Y10T137/7861—Annular head
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87265—Dividing into parallel flow paths with recombining
- Y10T137/87338—Flow passage with bypass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87265—Dividing into parallel flow paths with recombining
- Y10T137/87555—Having direct response valve [e.g., check valve, etc.]
- Y10T137/87563—With reverse flow direction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Flow Control (AREA)
- Multiple-Way Valves (AREA)
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Lift Valve (AREA)
- Check Valves (AREA)
Abstract
Description
Claims (3)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63811/1999 | 1999-03-10 | ||
JP6381199 | 1999-03-10 | ||
JP200727/1999 | 1999-07-14 | ||
JP20072799A JP3558556B2 (ja) | 1999-03-10 | 1999-07-14 | 圧力流量制御弁 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB200410003223XA Division CN1274966C (zh) | 1999-03-10 | 2000-03-10 | 压力/流量控制阀 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1266952A CN1266952A (zh) | 2000-09-20 |
CN1155769C true CN1155769C (zh) | 2004-06-30 |
Family
ID=26404934
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB200410003223XA Expired - Lifetime CN1274966C (zh) | 1999-03-10 | 2000-03-10 | 压力/流量控制阀 |
CNB001038907A Expired - Lifetime CN1155769C (zh) | 1999-03-10 | 2000-03-10 | 压力/流量控制阀 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB200410003223XA Expired - Lifetime CN1274966C (zh) | 1999-03-10 | 2000-03-10 | 压力/流量控制阀 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6296013B1 (zh) |
JP (1) | JP3558556B2 (zh) |
KR (1) | KR100398079B1 (zh) |
CN (2) | CN1274966C (zh) |
DE (1) | DE10011213B4 (zh) |
TW (1) | TW490537B (zh) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3558556B2 (ja) * | 1999-03-10 | 2004-08-25 | Smc株式会社 | 圧力流量制御弁 |
JP4264951B2 (ja) * | 2004-07-06 | 2009-05-20 | Smc株式会社 | 両手操作用制御弁 |
US7694939B2 (en) * | 2005-09-01 | 2010-04-13 | Smc Kabushiki Kaisha | Flow rate control valve |
CN101221361B (zh) * | 2008-01-18 | 2010-06-09 | 友达光电股份有限公司 | 管路压力平衡系统 |
JP5282195B2 (ja) * | 2008-04-21 | 2013-09-04 | Smc株式会社 | 流体圧機器 |
JP5282196B2 (ja) * | 2010-01-21 | 2013-09-04 | Smc株式会社 | 流量制御装置 |
JP5728288B2 (ja) * | 2011-04-28 | 2015-06-03 | Ckd株式会社 | 給排気調整装置、給排気調整システム |
US9435449B2 (en) * | 2012-04-05 | 2016-09-06 | The Boeing Company | Pilot valve controlled positive and negative pressure relief valves |
KR101252464B1 (ko) * | 2012-12-24 | 2013-04-16 | 주식회사 플로우버스 | 액추에이터용 급속 배기 밸브 |
DE112014003997B4 (de) | 2013-09-02 | 2023-07-06 | Smc Corporation | Fluidsteuerventil |
WO2016017377A1 (ja) * | 2014-08-01 | 2016-02-04 | 有限会社浜インターナショナル | スピードコントローラ |
JP6551740B2 (ja) * | 2015-10-28 | 2019-07-31 | Smc株式会社 | 流体制御弁 |
JP6673547B2 (ja) | 2016-04-27 | 2020-03-25 | Smc株式会社 | 流体制御弁 |
EP3453929A4 (en) * | 2016-05-10 | 2019-05-01 | BYD Company Limited | RELAXATION SWITCH VALVE |
JP6959485B2 (ja) * | 2016-06-23 | 2021-11-02 | Smc株式会社 | スピードコントローラ |
JP6502419B2 (ja) * | 2017-05-02 | 2019-04-17 | 有限会社浜インターナショナル | スピードコントローラ |
US20190136876A1 (en) * | 2017-06-10 | 2019-05-09 | Shahin Fallahi | Electro-hydraulic or electro-pneumatic servo-actuator using khayyam triangle |
JP7137160B2 (ja) * | 2018-06-13 | 2022-09-14 | Smc株式会社 | エアシリンダの流体回路 |
CN113251165B (zh) * | 2021-06-11 | 2021-12-24 | 东营市大学科技园发展有限责任公司 | 一种带有带压套管自动更换机构的井口闸阀 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4197874A (en) * | 1978-08-31 | 1980-04-15 | Mac Valves, Inc. | Pressure regulator and flow control valve with pre-exhaust vent means |
US4450861A (en) * | 1980-04-23 | 1984-05-29 | Daniel Bouteille | Compressed gas saving device |
JPS5912404U (ja) * | 1982-07-12 | 1984-01-25 | 三菱電機株式会社 | 照明器具 |
JPS5912404A (ja) | 1982-07-13 | 1984-01-23 | Nippon Telegr & Teleph Corp <Ntt> | 偏光子の製造方法 |
US5477829A (en) * | 1994-08-08 | 1995-12-26 | Ford Motor Company | Automotive returnless fuel system pressure valve |
JP3778634B2 (ja) * | 1996-11-22 | 2006-05-24 | Smc株式会社 | パイロットチェック弁付スピードコントローラ |
JP3558556B2 (ja) * | 1999-03-10 | 2004-08-25 | Smc株式会社 | 圧力流量制御弁 |
-
1999
- 1999-07-14 JP JP20072799A patent/JP3558556B2/ja not_active Expired - Fee Related
-
2000
- 2000-03-02 TW TW89103648A patent/TW490537B/zh not_active IP Right Cessation
- 2000-03-03 US US09/518,093 patent/US6296013B1/en not_active Expired - Lifetime
- 2000-03-08 DE DE2000111213 patent/DE10011213B4/de not_active Expired - Lifetime
- 2000-03-09 KR KR10-2000-0011751A patent/KR100398079B1/ko active IP Right Grant
- 2000-03-10 CN CNB200410003223XA patent/CN1274966C/zh not_active Expired - Lifetime
- 2000-03-10 CN CNB001038907A patent/CN1155769C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR100398079B1 (ko) | 2003-09-19 |
JP3558556B2 (ja) | 2004-08-25 |
JP2000322128A (ja) | 2000-11-24 |
CN1274966C (zh) | 2006-09-13 |
TW490537B (en) | 2002-06-11 |
US6296013B1 (en) | 2001-10-02 |
DE10011213A1 (de) | 2001-07-26 |
CN1266952A (zh) | 2000-09-20 |
KR20000062793A (ko) | 2000-10-25 |
DE10011213B4 (de) | 2004-04-08 |
CN1519479A (zh) | 2004-08-11 |
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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 | ||
CI01 | Publication of corrected invention patent application |
Correction item: Inventor Correct: Yang Qinghai False: Yang Xihai Number: 38 Page: 62 Volume: 16 |
|
CI02 | Correction of invention patent application |
Correction item: Inventor Correct: Yang Qinghai False: Yang Xihai Number: 38 Page: The title page Volume: 16 |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CX01 | Expiry of patent term |
Granted publication date: 20040630 |
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CX01 | Expiry of patent term |