Global Patent Index - EP 1024299 A1

EP 1024299 A1 2000-08-02 - Hydraulic directional control valve

Title (en)

Hydraulic directional control valve

Title (de)

Hydraulisches Wegeventil

Title (fr)

Distributeur hydraulique

Publication

EP 1024299 A1 (FR)

Application

EP 00400166 A

Priority

FR 9900820 A

Abstract (en)

The distributor incorporates a regulating balance in the form of a plunger (14) which moves in a bore (13) under the effect of a pressure differential created by inlet pressure on one face and a load pressure on the other. In a zone adjacent to the first end (12) of the plunger the bore wall and/or the plunger has at least one calibrated passage (30) designed to establish a link between the plunger end and a lateral orifice (21) in the bore when the plunger is forced into its end position by an extreme load above the normal inlet pressure. This ensures a flow of fluid at a low rate to the orifice and provides for a slow movement of the hydraulic receiver controlled by the distributor.

Abstract (fr)

Distributeur hydraulique avec une balance de régulation comprenant un plongeur (14) qui est déplaçable dans un logement (13), sous l'action d'un différentiel de pression (p) entre la pression d'admission (P) et la pression de charge la plus élevée (LS), et qui est propre à dégager, en proportion de ce différentiel (p), un orifice latéral (21) du logement (13) raccordé à un orifice de travail (A, B) du distributeur ; la paroi du logement (13) et/ou le plongeur (14) est équipée d'un passage calibré (30) reliant d'admission de fluide sous pression (P) et l'orifice latéral lorsque le plongeur est repoussé en position extrême par la pression (LS) excédant la pression d'admission (P) ; ainsi, malgré la valeur excédentaire de la pression (LS) qui devrait inhiber le fonctionnement du distributeur, du fluide hydraulique est délivré sous faible débit à l'orifice latéral et autorise le déplacement sous faible vitesse du récepteur hydraulique commandé par le distributeur hydraulique. <IMAGE>

IPC 1-7 (main, further and additional classification)

F15B 11/05; F15B 13/04

IPC 8 full level (invention and additional information)

F15B 11/05 (2006.01); F15B 11/00 (2006.01); F15B 13/04 (2006.01)

CPC (invention and additional information)

F15B 13/0417 (2013.01); Y10T 137/87169 (2015.04); Y10T 137/87185 (2015.04)

Citation (applicant)

FR 2689575 A1 19931008 - REXROTH SIGMA [FR]

Citation (search report)

Designated contracting state (EPC)

AT DE GB IT SE

EPO simple patent family

EP 1024299 A1 20000802; EP 1024299 B1 20040107; AT 257549 T 20040115; DE 60007566 D1 20040212; DE 60007566 T2 20041125; FR 2788817 A1 20000728; FR 2788817 B1 20010406; JP 2000220605 A 20000808; US 6267141 B1 20010731

INPADOC legal status


2016-10-31 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20160802

2016-08-02 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 60007566

2015-12-31 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20150121

2015-11-30 [PG25 SE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: SE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20150122

2015-10-30 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20150121

2015-09-23 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20150121

2015-09-01 [REG SE EUG] EUROPEAN PATENT HAS LAPSED

2015-04-30 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20150109

- Year of fee payment: 16

2014-06-30 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20140116

- Year of fee payment: 15

2014-05-30 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Payment date: 20140115

- Year of fee payment: 15

2014-04-30 [PGFP SE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: SE

- Payment date: 20140110

- Year of fee payment: 15

2013-10-31 [PG25 AT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: AT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20130131

2013-09-15 [REG AT MM01] LAPSE BECAUSE OF NOT PAYING ANNUAL FEES

- Document: AT 257549 T

- Effective date: 20130131

2013-03-29 [PGFP AT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: AT

- Payment date: 20111220

- Year of fee payment: 13

2006-05-24 [REG GB 732E] AMENDMENTS TO THE REGISTER IN RESPECT OF CHANGES OF NAME OR CHANGES AFFECTING RIGHTS (SECT. 32/1977)

2006-05-17 [REG GB 732E] AMENDMENTS TO THE REGISTER IN RESPECT OF CHANGES OF NAME OR CHANGES AFFECTING RIGHTS (SECT. 32/1977)

2004-12-29 [26N] NO OPPOSITION FILED

- Effective date: 20041008

2004-06-02 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

- Owner name: BOSCH REXROTH

2004-04-20 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2004-04-14 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20040322

2004-02-12 [REF] CORRESPONDS TO:

- Document: DE 60007566 P 20040212

2004-01-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT DE GB IT SE

2004-01-07 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2001-04-18 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: AT DE GB IT SE

2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001021

2000-08-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE GB IT SE

2000-08-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI