EP0310454A3 - Compensated individual segment flow regulator - Google Patents

Compensated individual segment flow regulator Download PDF

Info

Publication number: EP0310454A3
Authority: EP; European Patent Office
Prior art keywords: flow regulator; individual segment; segment flow; compensated individual; compensated
Prior art date: 1987-10-02
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

Application number

EP19880309199

Other versions

EP0310454A2 (en

EP0310454B1 (en

Inventor

James Patrick Janecke

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.)

Enerpac Tool Group Corp

Original Assignee

Applied Power Inc

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.)

1987-10-02

Filing date

1988-10-03

Publication date

1990-11-28

1988-10-03 Application filed by Applied Power Inc filed Critical Applied Power Inc

1989-04-05 Publication of EP0310454A2 publication Critical patent/EP0310454A2/en

1990-11-28 Publication of EP0310454A3 publication Critical patent/EP0310454A3/en

1994-08-24 Application granted granted Critical

1994-08-24 Publication of EP0310454B1 publication Critical patent/EP0310454B1/en

2008-10-03 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated 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
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
- F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Safety Valves (AREA)
Control Of Fluid Pressure (AREA)
Fluid-Pressure Circuits (AREA)

EP19880309199 1987-10-02 1988-10-03 Compensated individual segment flow regulator Expired - Lifetime EP0310454B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US10361087A	1987-10-02	1987-10-02
US103610		2008-04-15

Publications (3)

Publication Number	Publication Date
EP0310454A2 EP0310454A2 (en)	1989-04-05
EP0310454A3 true EP0310454A3 (en)	1990-11-28
EP0310454B1 EP0310454B1 (en)	1994-08-24

Family

ID=22296071

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19880309199 Expired - Lifetime EP0310454B1 (en)	1987-10-02	1988-10-03	Compensated individual segment flow regulator

Country Status (4)

Country	Link
EP (1)	EP0310454B1 (en)
JP (1)	JPH01145401A (en)
CA (1)	CA1302203C (en)
DE (1)	DE3851193T2 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1033109A (en) *	1963-07-19	1966-06-15	Dowty Hydraulic Units Ltd	Control valves for fluid-pressure-operated mechanisms
DE1956621A1 (en) *	1968-11-14	1970-07-23	Koehring Company Inc	Control spool
FR2180912A1 (en) *	1972-04-18	1973-11-30	Sperry Rand Corp
US3901264A (en) *	1972-03-06	1975-08-26	Gresen Manufacturing Co	Adjustable flow control for hydraulic valves having high pressure main supply and controls fluid flow to cylinder and exhaust ports
US4154262A (en) *	1977-10-17	1979-05-15	Gresen Manufacturing Company	Hydraulic control system
US4253482A (en) *	1979-03-05	1981-03-03	Gresen Manufacturing Company	Hydraulic valve having pressure compensated demand flow
US4519420A (en) *	1982-09-29	1985-05-28	Commercial Shearing, Inc.	Hydraulic valves
FR2559595A1 (en) *	1984-02-13	1985-08-16	Koehring Co	PRESSURE COMPENSATED HYDRAULIC VALVE
DE3507121A1 (en) *	1985-02-28	1986-08-28	Mannesmann Rexroth GmbH, 8770 Lohr	MULTI-WAY VALVE WITH PRESSURE SCALE
DE3540061A1 (en) *	1985-02-28	1987-05-14	Rexroth Mannesmann Gmbh	Multi-way valve with pressure balance

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4037410A (en) *	1976-05-26	1977-07-26	The Cessna Aircraft Company	Hydraulic control valve

1988
- 1988-10-03 EP EP19880309199 patent/EP0310454B1/en not_active Expired - Lifetime
- 1988-10-03 DE DE19883851193 patent/DE3851193T2/en not_active Expired - Lifetime
- 1988-10-03 CA CA000579109A patent/CA1302203C/en not_active Expired - Lifetime
- 1988-10-03 JP JP24972588A patent/JPH01145401A/en active Pending

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1033109A (en) *	1963-07-19	1966-06-15	Dowty Hydraulic Units Ltd	Control valves for fluid-pressure-operated mechanisms
DE1956621A1 (en) *	1968-11-14	1970-07-23	Koehring Company Inc	Control spool
US3901264A (en) *	1972-03-06	1975-08-26	Gresen Manufacturing Co	Adjustable flow control for hydraulic valves having high pressure main supply and controls fluid flow to cylinder and exhaust ports
FR2180912A1 (en) *	1972-04-18	1973-11-30	Sperry Rand Corp
US4154262A (en) *	1977-10-17	1979-05-15	Gresen Manufacturing Company	Hydraulic control system
US4253482A (en) *	1979-03-05	1981-03-03	Gresen Manufacturing Company	Hydraulic valve having pressure compensated demand flow
US4519420A (en) *	1982-09-29	1985-05-28	Commercial Shearing, Inc.	Hydraulic valves
FR2559595A1 (en) *	1984-02-13	1985-08-16	Koehring Co	PRESSURE COMPENSATED HYDRAULIC VALVE
DE3507121A1 (en) *	1985-02-28	1986-08-28	Mannesmann Rexroth GmbH, 8770 Lohr	MULTI-WAY VALVE WITH PRESSURE SCALE
DE3540061A1 (en) *	1985-02-28	1987-05-14	Rexroth Mannesmann Gmbh	Multi-way valve with pressure balance

Also Published As

Publication number	Publication date
EP0310454A2 (en)	1989-04-05
DE3851193T2 (en)	1995-04-06
CA1302203C (en)	1992-06-02
DE3851193D1 (en)	1994-09-29
JPH01145401A (en)	1989-06-07
EP0310454B1 (en)	1994-08-24

Legal Events

Date	Code	Title	Description
1989-02-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1989-04-05	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT NL SE
1990-10-11	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-11-28	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB IT NL SE
1991-07-24	17P	Request for examination filed	Effective date: 19910528
1993-07-28	17Q	First examination report despatched	Effective date: 19930611
1994-07-08	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-08-24	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT NL SE
1994-08-24	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19940824
1994-09-29	REF	Corresponds to:	Ref document number: 3851193 Country of ref document: DE Date of ref document: 19940929
1994-10-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19941031 Year of fee payment: 7
1994-11-21	ITF	It: translation for a ep patent filed	Owner name: ING.C. GREGORJ S.P.A.
1994-12-30	ET	Fr: translation filed
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 88309199.3
1995-02-16	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
1995-06-24	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1995-06-24	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1995-08-16	26N	No opposition filed
1996-06-19	REG	Reference to a national code	Ref country code: GB Ref legal event code: 732E
1997-04-30	REG	Reference to a national code	Ref country code: FR Ref legal event code: TP
1999-06-09	REG	Reference to a national code	Ref country code: GB Ref legal event code: 732E
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2008-01-02	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20070921 Year of fee payment: 20
2008-01-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20070915 Year of fee payment: 20 Ref country code: DE Payment date: 20070921 Year of fee payment: 20 Ref country code: SE Payment date: 20070917 Year of fee payment: 20
2008-04-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20070912 Year of fee payment: 20
2008-10-22	REG	Reference to a national code	Ref country code: GB Ref legal event code: PE20 Expiry date: 20081002
2008-12-16	EUG	Se: european patent has lapsed
2009-06-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20081002

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