Global Patent Index - EP 3164610 B1

EP 3164610 B1 2017-10-18 - PISTON AND A POSITIONER FITTED WITH THE PISTON

Title (en)

PISTON AND A POSITIONER FITTED WITH THE PISTON

Title (de)

KOLBEN UND DAMIT AUSGESTATTETE STELLVORRICHTUNG

Title (fr)

PISTON ET UN POSITIONNEUR EQUIPÉ AVEC LE PISTON

Publication

EP 3164610 B1 (DE)

Application

EP 14796715 A

Priority

EP 2014003034 W

Abstract (en)

[origin: WO2016074691A1] The invention relates to a piston (4) for a positioning device that can be operated by means of fluid, which piston has a one-piece piston body (16), in which an annular accommodating groove (25) is formed, which is coaxial to the longitudinal axis (5) of the piston (4) and which has two lateral groove flanks (33a, 33b) that face each other. A permanent magnet assembly (24) is arranged in the accommodating groove (25). The permanent magnet assembly consists of an elastic permanently magnetic magnet strip (35), which is bent into a ring structure and which has two strip end segments (35a, 35b) that face each other. The magnet strip (35) has a smaller width than the accommodating groove (25), wherein each of the two strip end segments (35a, 35b) of the magnet strip is firmly clamped in the accommodating groove (25). At least one clamping protrusion (46a, 47a; 46b, 47b) protruding from one of the groove flanks (33a, 33b) is responsible for the clamping.

IPC 8 full level (invention and additional information)

F15B 15/28 (2006.01)

CPC (invention and additional information)

F15B 15/2892 (2013.01); F15B 15/2807 (2013.01); F15B 15/2861 (2013.01)

Citation (examination)

None

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

EPO simple patent family

WO 2016074691 A1 20160519; CN 107076179 A 20170818; EP 3164610 A1 20170510; EP 3164610 B1 20171018; KR 20170082500 A 20170714

INPADOC legal status


2017-11-30 [REG DE R096] DPMA PUBLICATION OF MENTIONED EP PATENT GRANT

- Document: DE 502014005889

2017-11-15 [REG AT REF] REFERENCE TO AT NUMBER (EP PATENT ENTERS AUSTRIAN NATIONAL PHASE)

- Document: AT 938200 T

- Effective date: 20171115

2017-10-31 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2017-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-10-18 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2017-09-20 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KLESMANN, DANIELA

2017-09-20 [RIN1] INVENTOR (CORRECTION)

- Inventor name: REICHERT, KLAUS

2017-09-20 [RIN1] INVENTOR (CORRECTION)

- Inventor name: BESELER, JOERG

2017-06-28 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2017-06-28 [INTG] ANNOUNCEMENT OF INTENTION TO GRANT

- Effective date: 20170601

2017-05-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20170127

2017-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

2017-05-10 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: BA ME