Global Patent Index - EP 0459602 B2

EP 0459602 B2 2000-02-09 - Mass spectrometric high-frequency quadrupole cage with superposed multipole fields

Title (en)

Mass spectrometric high-frequency quadrupole cage with superposed multipole fields

Title (de)

Massenspektrometrischer Hochfrequenz-Quadrupol-Käfig mit überlagerten Multipolfeldern

Title (fr)

Cage quadrupolaire haute fréquence pour spectrométrie de masse avec champs multipolaires superposés

Publication

EP 0459602 B2 (DE)

Application

EP 91250128 A

Priority

DE 4017264 A

Abstract (en)

[origin: EP0459602A2] An ion cage mass spectrometer, also known as a quistor or ion trap, having an annular electrode and two end-cap electrodes, voltage supplies for generating an ion-storing RF quadrupole field, means for generating ions of the substances which are to be investigated by mass-spectrometric means inside or outside the ion cage, if appropriate, means for introducing the ions into the ion cage, means for detecting those ions which emerge from the ion cage, characterised in that the exact quadrupole potential… Pq = (A2/4z0<2>) * (r<2>-2z<2>) * [U - Vcos(Wt)]… has superposed on it, by special shaping of the electrodes, exactly or approximately, a six-pole potential… Ps = (A3/4z0<3>) * (3r<2>z-2z<3>) * [U - Vcos(Wt)],… or an eight-pole potential… P0 = (A4/4z0<4>) * (r<4> + 8z<4>/3-8r<2>z<2>) * [U - Vcos(Wt)],… or a linear combination of the two, where … …  r = distance from the z-axis, …  z = distance from the plane z = 0, …  z0 = distance of an end cap from the centre z = 0, …  A2 = intensity of the quadrupole field, …  A3 = intensity of the six-pole field, …  A4 = intensity of the eight-pole field, …  U = value of the DC voltage …  V = peak value of the AC voltage, …   omega = angular frequency of the AC voltage, …  t = time. … …<IMAGE>…

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

H01J 49/42; H01J 49/10

IPC 8 full level (invention and additional information)

H01J 49/42 (2006.01)

CPC (invention and additional information)

H01J 49/424 (2013.01)

Designated contracting state (EPC)

BE DE FR GB NL

EPO simple patent family

EP 0459602 A2 19911204; EP 0459602 A3 19920701; EP 0459602 B1 19960313; EP 0459602 B2 20000209; DE 4017264 A1 19911219; DE 4017264 C2 19921203; US 5170054 A 19921208

INPADOC legal status


2013-06-28 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2011-05-08 [REG DE R071] EXPIRY OF RIGHT

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2010-11-30 [BERE] BE: LAPSED

- Owner name: *BRUKER DALTONIK G.M.B.H.

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2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2000-07-03 [NLR3] NL: RECEIPT OF MODIFIED TRANSLATIONS IN THE NETHERLANDS LANGUAGE AFTER AN OPPOSITION PROCEDURE

2000-04-03 [NLR2] NL: DECISION OF OPPOSITION

2000-03-24 [ET3] FR: TRANSLATION FILED ** DECISION CONCERNING OPPOSITION

2000-03-01 [GBTA] GB: TRANSLATION OF AMENDED EP PATENT FILED (GB SECTION 77(6)(B)/1977)

- Effective date: 20000209

2000-02-09 [27A] MAINTAINED AS AMENDED

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1999-03-01 [NLT2] NL: MODIFICATIONS (OF NAMES), TAKEN FROM THE EUROPEAN PATENT PATENT BULLETIN

- Owner name: BRUKER DALTONIK GMBH

1998-12-23 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

- Owner name: BRUKER DALTONIK GMBH

1997-04-01 [NLR1] NL: OPPOSITION HAS BEEN FILED WITH THE EPO

- Opponent name: FINNIGAN CORPORATION

1997-02-12 [26] OPPOSITION FILED

- Opponent name: FINNIGAN CORPORATION

- Effective date: 19961212

1996-04-18 [REF] CORRESPONDS TO:

- Document: DE 59107529 19960418

1996-04-10 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

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1993-02-03 [17P] REQUEST FOR EXAMINATION FILED

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