KR890001024A - Hybrid Magnetic Head - Google Patents
Hybrid Magnetic Head Download PDFInfo
- Publication number
- KR890001024A KR890001024A KR1019880001157A KR880001157A KR890001024A KR 890001024 A KR890001024 A KR 890001024A KR 1019880001157 A KR1019880001157 A KR 1019880001157A KR 880001157 A KR880001157 A KR 880001157A KR 890001024 A KR890001024 A KR 890001024A
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic head
- core
- erasing
- gap
- hybrid magnetic
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/025—Taps specially designed for outdoor use, e.g. wall hydrants, sill cocks
- E03B9/027—Taps specially designed for outdoor use, e.g. wall hydrants, sill cocks with features preventing frost damage
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/14—Devices for thawing frozen pipes
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/04—Column hydrants
- E03B9/06—Covers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/10—Devices preventing bursting of pipes by freezing
- E03B7/12—Devices preventing bursting of pipes by freezing by preventing freezing
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Magnetic Heads (AREA)
- Multiple-Way Valves (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제 1 도는 본 발명에 의한 복합형 자기헤드의 구조를 나타낸 개략 종단면도,1 is a schematic longitudinal sectional view showing the structure of a hybrid magnetic head according to the present invention;
제 2 도 및 제 3 도는 본 발명에 의한 비대칭의 개선의 효과를 나타낸 그래프.2 and 3 are graphs showing the effect of improving asymmetry according to the present invention.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62163174A JPS647313A (en) | 1987-06-29 | 1987-06-29 | Composite magnetic head |
JP87-163174 | 1987-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890001024A true KR890001024A (en) | 1989-03-17 |
KR920001157B1 KR920001157B1 (en) | 1992-02-06 |
Family
ID=15768649
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880001157A KR920001157B1 (en) | 1987-06-29 | 1988-02-08 | Hybrid Magnetic Head |
KR2019890016252U KR920001157Y1 (en) | 1987-06-29 | 1989-11-03 | Complex type magnetic head device preventing bursting of pipe of freezing |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019890016252U KR920001157Y1 (en) | 1987-06-29 | 1989-11-03 | Complex type magnetic head device preventing bursting of pipe of freezing |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS647313A (en) |
KR (2) | KR920001157B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH041905A (en) * | 1990-04-18 | 1992-01-07 | Nec Corp | Magnetic head |
-
1987
- 1987-06-29 JP JP62163174A patent/JPS647313A/en active Pending
-
1988
- 1988-02-08 KR KR1019880001157A patent/KR920001157B1/en not_active IP Right Cessation
-
1989
- 1989-11-03 KR KR2019890016252U patent/KR920001157Y1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR910009191U (en) | 1991-06-28 |
JPS647313A (en) | 1989-01-11 |
KR920001157Y1 (en) | 1992-02-13 |
KR920001157B1 (en) | 1992-02-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19880208 |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19880208 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 19910730 Patent event code: PE09021S01D |
|
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19911230 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19920509 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19920528 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 19920528 End annual number: 3 Start annual number: 1 |
|
FPAY | Annual fee payment |
Payment date: 19941228 Year of fee payment: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 19941228 Start annual number: 4 End annual number: 4 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |