Global patent index - EP 1007862 A1

EP 1007862 A1 2000-06-14 - HYDRAULIC ACTUATOR, IN PARTICULAR FOR ENGAGING, A TUBE GUIDE INTEGRAL WITH AN EXTERNAL BODY

Title (en)

HYDRAULIC ACTUATOR, IN PARTICULAR FOR ENGAGING, A TUBE GUIDE INTEGRAL WITH AN EXTERNAL BODY

Title (de)

NEHMERZYLINDER, INSBESONDERE FÜR EINE KUPPLUNG, MIT EINER AM ÄUSSEREN GEHÄUSE BEFESTIGTEN FÜHRUNGSHÜLSE

Title (fr)

RECEPTEUR HYDRAULIQUE, NOTAMMENT D'EMBRAYAGE, A TUBE GUIDE SOLIDAIRE D'UN CORPS EXTERIEUR

Publication

EP 1007862 A1 (FR)

Application

EP 99926560 A

Priority

  • FR 9901557 W
  • FR 9808313 A
  • FR 9808311 A

Abstract (en)

[origin: US6354188B1] The invention concerns a hydraulic, in particular clutching, actuator for receiving control data from a hydraulic circuit in the form of pressure variations. The concentric-type actuator (8) for hydraulic control comprises a fixed part (9) consisting of an external body (21) and a guide tube (22), both cylindrical and coaxial, and a piston (11) mounted sliding coaxially to the fixed part (9) and defining therein a chamber with variable volume (13) designed to be connected to the hydraulic control hydraulic transmitter, the external body (21) comprises on its internal face (35) a groove wherein is inserted a radial edge (31) with which the guide tube (22) is provided at one of its ends and which partially constitutes the variable volume chamber (13) bottom.

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

F16D 1/00

IPC 8 full level (invention and additional information)

F16D 25/08 (2006.01)

CPC (invention and additional information)

F16D 25/083 (2013.01)

Citation (search report)

See references of WO 0000753A3

Designated contracting state (EPC)

GB IT

EPO simple patent family

US 6354188 B1 20020312; DE 19981468 T1 20001026; EP 1007862 A1 20000614; JP 2003520334 A 20030702; WO 0000753 A2 20000106; WO 0000753 A3 20021003

INPADOC legal status

2005-01-26 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040723

2003-10-29 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: VALEO EMBRAYAGES S.A.S.

- Ref Legal Event Code: RAP1

2002-11-20 [D17D] SEARCH REPORT (DELETED)

- Ref Legal Event Code: D17D

2000-06-14 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000222

2000-06-14 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): GB IT