FR2228972B1 - - Google Patents

Info

Publication number: FR2228972B1
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

FR7412763A

Other languages

French (fr)

Other versions

FR2228972A1 (en

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.)

1973-05-10

Filing date

1974-04-11

Publication date

1977-03-04

1974-04-11 Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co

1974-12-06 Publication of FR2228972A1 publication Critical patent/FR2228972A1/fr

1977-03-04 Application granted granted Critical

1977-03-04 Publication of FR2228972B1 publication Critical patent/FR2228972B1/fr

Status Expired legal-status Critical Current

Links

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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
- 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
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2574—Bypass or relief controlled by main line fluid condition
- Y10T137/2605—Pressure responsive
- Y10T137/2617—Bypass or relief valve biased open

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Fluid-Pressure Circuits (AREA)
Power Steering Mechanism (AREA)
Forklifts And Lifting Vehicles (AREA)
Servomotors (AREA)

FR7412763A 1973-05-10 1974-04-11 Expired FR2228972B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US35919573 US3811363A (en)	1973-05-10	1973-05-10	Priority system for series-type hydraulic circuits

Publications (2)

Publication Number	Publication Date
FR2228972A1 FR2228972A1 (en)	1974-12-06
FR2228972B1 true FR2228972B1 (en)	1977-03-04

Family

ID=23412736

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7412763A Expired FR2228972B1 (en)	1973-05-10	1974-04-11

Country Status (11)

Country	Link
US (1)	US3811363A (en)
JP (1)	JPS5827401B2 (en)
AU (1)	AU473658B2 (en)
BE (1)	BE813740A (en)
BR (1)	BR7403229D0 (en)
CA (1)	CA990621A (en)
DE (1)	DE2419917C2 (en)
FR (1)	FR2228972B1 (en)
GB (1)	GB1426699A (en)
IT (1)	IT1011773B (en)
ZA (1)	ZA742641B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1106733A (en) *	1977-07-13	1981-08-11	Clark Equipment Company	Pressure control mechanism for a grapple skidder
US4206689A (en) *	1977-08-22	1980-06-10	Caterpillar Tractor Co.	Priority system
US4355565A (en) *	1980-03-24	1982-10-26	Caterpillar Tractor Co.	Fluid circuit with zero leak load check and by-pass valve
US4343151A (en) *	1980-05-16	1982-08-10	Caterpillar Tractor Co.	Series - parallel selector for steering and implement
DE3243726C2 (en) *	1982-11-26	1989-06-08	Paul 4740 Oelde Hammelmann	High pressure plunger pump
US4773216A (en) *	1985-01-22	1988-09-27	Kanzaki Kokykoki Mfg. Co. Ltd.	Flow divider valve for hydraulic system in working vehicles
US6018895A (en) *	1996-03-28	2000-02-01	Clark Equipment Company	Valve stack in a mini-excavator directing fluid under pressure from multiple pumps to actuable elements
AU720849B2 (en) *	1996-03-28	2000-06-15	Clark Equipment Company	Multifunction valve stack
US5826487A (en) *	1997-02-20	1998-10-27	Caterpillar Inc.	Pressure control for a pair of parallel hydraulic circuits
JP2005153703A (en) *	2003-11-26	2005-06-16	Kanzaki Kokyukoki Mfg Co Ltd	Hydraulic driving type four-wheel drive working vehicle being fuselage bending type
CN108557714B (en) *	2018-07-11	2019-12-20	宁波管通机械有限公司	Explosion-proof type fork truck hydraulic line tee bend connects

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3364821A (en) *	1963-06-27	1968-01-23	Gen Motors Corp	Valving for hydraulic power brake system
DE1507172B2 (en) *	1966-10-28	1977-03-17	Robert Bosch Gmbh, 7000 Stuttgart	PRESSURIZED DRIVE DEVICE
DE1918989A1 (en) *	1969-04-15	1970-11-05	Krupp Gmbh	Hydrostatic drive, especially for crane, luffing and hoisting gear
BE755815A (en) *	1969-09-08	1971-02-15	Clark Equipment Co	HYDRAULIC SYSTEM OF A LIFT TRUCK
US3633617A (en) *	1970-01-28	1972-01-11	Parker Hannifin Corp	Fluid system and valve assembly therefor
US3713296A (en) *	1972-02-15	1973-01-30	D Black	Hydraulic system for individually controlling a plurality of hydraulic motors

1973
- 1973-05-10 US US35919573 patent/US3811363A/en not_active Expired - Lifetime
1974
- 1974-04-11 FR FR7412763A patent/FR2228972B1/fr not_active Expired
- 1974-04-16 BE BE1005888A patent/BE813740A/en not_active IP Right Cessation
- 1974-04-18 CA CA197,783A patent/CA990621A/en not_active Expired
- 1974-04-22 BR BR322974A patent/BR7403229D0/en unknown
- 1974-04-23 AU AU68186/74A patent/AU473658B2/en not_active Expired
- 1974-04-24 IT IT6829474A patent/IT1011773B/en active
- 1974-04-24 GB GB1796774A patent/GB1426699A/en not_active Expired
- 1974-04-25 ZA ZA00742641A patent/ZA742641B/en unknown
- 1974-04-25 DE DE2419917A patent/DE2419917C2/en not_active Expired
- 1974-05-10 JP JP49052760A patent/JPS5827401B2/en not_active Expired

Also Published As

Publication number	Publication date
CA990621A (en)	1976-06-08
GB1426699A (en)	1976-03-03
AU6818674A (en)	1975-10-23
JPS5018876A (en)	1975-02-27
JPS5827401B2 (en)	1983-06-09
US3811363A (en)	1974-05-21
BE813740A (en)	1974-08-16
DE2419917C2 (en)	1985-07-25
IT1011773B (en)	1977-02-10
AU473658B2 (en)	1976-07-01
ZA742641B (en)	1975-06-25
FR2228972A1 (en)	1974-12-06
BR7403229D0 (en)	1974-11-19
DE2419917A1 (en)	1974-12-05

Legal Events

Date	Code	Title	Description
1987-11-13	TP	Transmission of property
1988-02-26	ST	Notification of lapse

Publication	Publication Date	Title
AR201758A1 (en)	1975-04-15
AU465372B2 (en)	1975-09-25
AR201235Q (en)	1975-02-21
AR201231Q (en)	1975-02-21
AU450229B2 (en)	1974-07-04
AU476714B2 (en)	1976-09-30
FR2228972B1 (en)	1977-03-04
AR201229Q (en)	1975-02-21
AR199451A1 (en)	1974-08-30
FR2256390B1 (en)	1976-11-19
AU461342B2 (en)	1975-05-22
AR200256A1 (en)	1974-10-31
AR200885A1 (en)	1974-12-27
AR197627A1 (en)	1974-04-23
AR196382A1 (en)	1973-12-18
AR201432A1 (en)	1975-03-14
AR195948A1 (en)	1973-11-15
AR210729A1 (en)	1977-09-15
AU447540B2 (en)	1974-03-25
AR195311A1 (en)	1973-09-28
AR193950A1 (en)	1973-05-31
AR196212Q (en)	1973-12-10
AU1891376A (en)	1977-01-20
CH564172A5 (en)	1975-07-15
BG19930A1 (en)	1975-10-30