Global Patent Index - EP 1317630 A2

EP 1317630 A2 2003-06-11 - HYDRAULIC CYLINDER

Title (en)

HYDRAULIC CYLINDER

Title (de)

HYDRAULISCHER ZYLINDER

Title (fr)

CYLINDRE HYDRAULIQUE

Publication

EP 1317630 A2 (DE)

Application

EP 01974212 A

Priority

  • DE 10044984 A
  • EP 0109781 W

Abstract (en)

[origin: WO0220997A2] A hydraulic cylinder (10) is disclosed, the housing of which is formed from a cylindrical housing piece (13) and a bottom and top end-piece (11, 12). Said cylinder contains a piston arrangement (16) mounted in the cylinder in a sealed manner, which extends out of the cylinder through the top end-piece (12). The cylinder is provided with a displacement monitor comprising an element fixed to the cylinder and an element fixed to the piston (30, 31) and which produces an electrical signal which is a measure of the position of the piston arrangement relative to the housing. On application of said cylinder in a rugged environment there is a risk of damage to components of the displacement monitor, in particular to electronic circuits. According to the invention, damage as above may be avoided, whereby an analytical circuitry (40), connected to an element of the displacement monitor, is housed in a cup-shaped recess (39) in the bottom end-piece of the housing (11). Said cylinders are particularly suitable for use in rugged conditions, such as, for example, in vehicle construction.

[origin: WO0220997A2] A hydraulic cylinder is disclosed, the housing of which is formed from a cylindrical housing piece and a bottom and top end-piece. Said cylinder contains a piston arrangement mounted in the cylinder in a sealed manner, which extends out of the cylinder through the top end-piece. The cylinder is provided with a displacement monitor comprising an element fixed to the cylinder and an element fixed to the piston and which produces an electrical signal which is a measure of the position of the piston arrangement relative to the housing. On application of said cylinder in a rugged environment there is a risk of damage to components of the displacement monitor, in particular to electronic circuits. According to the invention, damage as above may be avoided, whereby an analytical circuitry, connected to an element of the displacement monitor, is housed in a cup-shaped recess in the bottom end-piece of the housing. Said cylinders are particularly suitable for use in rugged conditions, such as, for example, in vehicle construction.

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

F15B 1/00

IPC 8 full level (invention and additional information)

F15B 15/28 (2006.01)

CPC (invention and additional information)

F15B 15/2892 (2013.01); F15B 15/2861 (2013.01)

Citation (search report)

See references of WO 0220997A2

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 0220997 A2 20020314; WO 0220997 A3 20020606; DE 10044984 A1 20020321; DE 50111992 D1 20070322; EP 1317630 A2 20030611; EP 1317630 B1 20070131

INPADOC legal status


2016-08-31 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2016-07-29 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2016-06-03 [REG FR ST] NOTIFICATION OF LAPSE

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2016-04-29 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2016-03-01 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 50111992

2015-01-30 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Year of fee payment: 14

2014-12-31 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2014-11-28 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2008-01-09 [26N] NO OPPOSITION FILED

- Effective date: 20071101

2007-11-24 [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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20070131

2007-08-29 [GBV] GB: EP PATENT (UK) TREATED AS ALWAYS HAVING BEEN VOID IN ACCORDANCE WITH GB SECTION 77(7)/1977

- Effective date: 20070131

2007-07-20 [ET] FR: TRANSLATION FILED

2007-03-22 [REF] CORRESPONDS TO:

- Document: DE 50111992 P 20070322

2007-01-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB IT

2007-01-31 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2006-07-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): DE FR GB IT

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): AT BE CH CY DE FR GB IT LI

2003-09-17 [RIN1] INVENTOR (CORRECTION)

- Inventor name: EBEL, WERNER

2003-09-17 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KUEBERT, WILFRIED

2003-09-17 [RIN1] INVENTOR (CORRECTION)

- Inventor name: LAUBE, MARTIN

2003-06-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030329

2003-06-11 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR