FR2199144B1 - - Google Patents

Info

Publication number
FR2199144B1
FR2199144B1 FR7332507A FR7332507A FR2199144B1 FR 2199144 B1 FR2199144 B1 FR 2199144B1 FR 7332507 A FR7332507 A FR 7332507A FR 7332507 A FR7332507 A FR 7332507A FR 2199144 B1 FR2199144 B1 FR 2199144B1
Authority
FR
France
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
Application number
FR7332507A
Other languages
French (fr)
Other versions
FR2199144A1 (zh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of FR2199144A1 publication Critical patent/FR2199144A1/fr
Application granted granted Critical
Publication of FR2199144B1 publication Critical patent/FR2199144B1/fr
Expired legal-status Critical Current

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
    • 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)
FR7332507A 1972-09-11 1973-09-10 Expired FR2199144B1 (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28760472A 1972-09-11 1972-09-11

Publications (2)

Publication Number Publication Date
FR2199144A1 FR2199144A1 (zh) 1974-04-05
FR2199144B1 true FR2199144B1 (zh) 1976-09-24

Family

ID=23103614

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332507A Expired FR2199144B1 (zh) 1972-09-11 1973-09-10

Country Status (7)

Country Link
US (1) US3782248A (zh)
JP (1) JPS5610647B2 (zh)
BE (1) BE804588A (zh)
CA (1) CA999952A (zh)
DE (1) DE2346162C2 (zh)
FR (1) FR2199144B1 (zh)
GB (1) GB1450165A (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062269A (en) * 1975-04-21 1977-12-13 Clark Equipment Company Hydraulic cylinder extension control
JPS5736701Y2 (zh) * 1975-12-04 1982-08-13
US4011959A (en) * 1976-02-13 1977-03-15 Caterpillar Tractor Co. Bucket-positioner circuit with "no detent" operation
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
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
BE804588A (fr) 1974-03-07
GB1450165A (en) 1976-09-22
FR2199144A1 (zh) 1974-04-05
JPS5610647B2 (zh) 1981-03-10
JPS4965003A (zh) 1974-06-24
US3782248A (en) 1974-01-01
DE2346162C2 (de) 1983-12-01
CA999952A (en) 1976-11-16
DE2346162A1 (de) 1974-03-21

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse