JPS4965003A - - Google Patents
Info
- Publication number
- JPS4965003A JPS4965003A JP48102554A JP10255473A JPS4965003A JP S4965003 A JPS4965003 A JP S4965003A JP 48102554 A JP48102554 A JP 48102554A JP 10255473 A JP10255473 A JP 10255473A JP S4965003 A JPS4965003 A JP S4965003A
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
- E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
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- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Operation Control Of Excavators (AREA)
- Control Of Position Or Direction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28760472A | 1972-09-11 | 1972-09-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4965003A true JPS4965003A (bg) | 1974-06-24 |
| JPS5610647B2 JPS5610647B2 (bg) | 1981-03-10 |
Family
ID=23103614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10255473A Expired JPS5610647B2 (bg) | 1972-09-11 | 1973-09-11 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3782248A (bg) |
| JP (1) | JPS5610647B2 (bg) |
| BE (1) | BE804588A (bg) |
| CA (1) | CA999952A (bg) |
| DE (1) | DE2346162C2 (bg) |
| FR (1) | FR2199144B1 (bg) |
| GB (1) | GB1450165A (bg) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52165502U (bg) * | 1976-06-10 | 1977-12-15 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062269A (en) * | 1975-04-21 | 1977-12-13 | Clark Equipment Company | Hydraulic cylinder extension control |
| JPS5736701Y2 (bg) * | 1975-12-04 | 1982-08-13 | ||
| US4011959A (en) * | 1976-02-13 | 1977-03-15 | Caterpillar Tractor Co. | Bucket-positioner circuit with "no detent" operation |
| US4333251A (en) * | 1981-01-23 | 1982-06-08 | International Harvester Co. | Automatic bucket leveler |
| JPS5950474A (ja) * | 1982-09-17 | 1984-03-23 | Konishiroku Photo Ind Co Ltd | 記録装置 |
| JPS59129885A (ja) * | 1983-01-17 | 1984-07-26 | Konishiroku Photo Ind Co Ltd | 記録装置 |
| WO1993006313A1 (en) * | 1991-09-26 | 1993-04-01 | Caterpillar Inc. | Electronic implement control |
| KR101601978B1 (ko) * | 2009-12-03 | 2016-03-09 | 두산인프라코어 주식회사 | 휠로더 버켓의 풀 크라우드 디텐트 장치 |
| KR101601980B1 (ko) * | 2009-12-24 | 2016-03-09 | 두산인프라코어 주식회사 | 전자식 능동 디텐트 장치 및 그 방법 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2331108A (en) * | 1940-07-10 | 1943-10-05 | Reconstruction Finance Corp | Hydraulic mechanism |
| US3420393A (en) * | 1967-04-19 | 1969-01-07 | Case Co J I | Fluid motor position control |
| US3524562A (en) * | 1968-09-19 | 1970-08-18 | Caterpillar Tractor Co | Hydraulic controls for bucket loaders |
| DE1962069C2 (de) * | 1969-12-11 | 1982-09-16 | Robert Bosch Gmbh, 7000 Stuttgart | Mehrwegeventil mit einem elektromagnetisch in seinen Arbeitsstellungen gehaltenen Längsschieber |
| DE2045778A1 (de) * | 1970-09-16 | 1972-03-23 | Caterpillar Tractor Co., Peoria, 111. (V.St.A.) | Magnetsteuerung, beispielsweise für die Schaufelsteuerung eines Schaufelladers |
| US3659734A (en) * | 1971-06-09 | 1972-05-02 | Caterpillar Tractor Co | Bucket positioning device utilizing a biased proximity switch |
-
1972
- 1972-09-11 US US00287604A patent/US3782248A/en not_active Expired - Lifetime
-
1973
- 1973-08-14 CA CA178,733A patent/CA999952A/en not_active Expired
- 1973-09-07 BE BE135426A patent/BE804588A/xx not_active IP Right Cessation
- 1973-09-10 FR FR7332507A patent/FR2199144B1/fr not_active Expired
- 1973-09-11 GB GB4259073A patent/GB1450165A/en not_active Expired
- 1973-09-11 DE DE2346162A patent/DE2346162C2/de not_active Expired
- 1973-09-11 JP JP10255473A patent/JPS5610647B2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52165502U (bg) * | 1976-06-10 | 1977-12-15 | ||
| JPS5923810Y2 (ja) * | 1976-06-10 | 1984-07-14 | 株式会社小松製作所 | 操作レバの自動復帰装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| BE804588A (fr) | 1974-03-07 |
| GB1450165A (en) | 1976-09-22 |
| FR2199144A1 (bg) | 1974-04-05 |
| JPS5610647B2 (bg) | 1981-03-10 |
| US3782248A (en) | 1974-01-01 |
| DE2346162C2 (de) | 1983-12-01 |
| FR2199144B1 (bg) | 1976-09-24 |
| CA999952A (en) | 1976-11-16 |
| DE2346162A1 (de) | 1974-03-21 |