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ROLLING GRINDING TOOL FOR HARD FINISHING TOOTHED COMPONENTS BY CONTINUOUS ROLLING GRINDING

Publication No. EP4516437

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App No. EP23195186

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Filed by Krebs & Riedel Schleifscheibenfabrik GmbH & Co. KG

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Filed on 2023-09-04

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Issued/Published on 2025-10-22

Official EPO Register

Publication No. EP4516437 A1

Application No. EP23195186 Filed: 2023-09-04

Grant Date 2025-10-22 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

[0001] Wälzschleifwerkzeug (100) zur Hartfeinbearbeitung von Verzahnungskomponenten durch kontinuierliches Wälzschleifen, umfassend: zwei Wälzschnecken (20; 30) zum Wälzschleifen einer Verzahnungskontur einer Verzahnungskomponente, wobei die Wälzschnecken (20; 30) jeweils im Wesentlichen aus einer Matrix bestehen, in die jeweils zumindest ein Schleifmittel (52; 62) eingebettet ist, und jeweils eine axiale Öffnung (70; 72) aufweisen; und eine Hülse (40), auf der die Wälzschnecken (20; 30) hintereinander angeordnet sind und die im Wesentlichen aus einer Polymer-Matrix besteht, die stoffschlüssig mit einer jeweiligen Mantelfläche (24; 34) der Öffnungen (70; 72) der Wälzschnecken (20; 30) verbunden ist, wobei Profilierungen (50; 60) der zwei Wälzschnecken (20; 30) jeweilige Abschnitte einer gemeinsamen, schraubenförmig gewundenen Profilierung des Wälzschleifwerkzeugs (100) bilden; und Verfahren zur Herstellung eines Wälzschleifwerkzeugs, umfassend Anordnen zweier Wälzschnecken (20; 30) mit einander zugewandten Planflächen (28; 38) und Gießen einer Hülse (40) in den axialen Öffnungen der Wälzschnecken (20; 30).

IPC Classifications

B23F21/02, B24D5/14, B24D18/00, B24D5/16, // B23F21/00 B23F21/02, B24D5/14, B24D18/00, // B23F21/00

Priority Claims

No priority claims recorded

Designated Contracting States (39 EPC States)

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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Parties & Representation

Applicants

Krebs & Riedel Schleifscheibenfabrik GmbH & Co. KG

Bremer Straße 44, 34385 Bad Karlshafen

Inventors (2)

Weber, Steffen

37671 Höxter

Kuhl, Ingo

37697 Lauenförde

Representatives / Agents

Ter Meer und Partner mbB

Nymphenburger Str. 4, Zugang Dachauer Str. 63

Ter Meer Steinmeister & Partner

Patentanwälte mbB, Nymphenburger Straße 4

Detken, Andreas

Isler & Pedrazzini AG, Giesshübelstrasse 45

Key Procedural Dates

Request-For-Examination 2024-03-15

Mention Of Grant Published 2025-10-22

First-Examination-Report-Despatched 2025-05-06

Legal Status & Event History

Official European Patent Office legal and procedural status changes recorded for this file.

32 Events Recorded

Date	Code	Event Description	Auth
2025-03-05	17P	REQUEST FOR EXAMINATION FILED	EP
2025-03-05	AK	DESIGNATED CONTRACTING STATES	EP
2025-01-31	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2025-01-31	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-04-09	RIC1	INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT	EP
2025-05-06	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-05-06	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-06-04	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-09-05	GRAS	GRANT FEE PAID	EP
2025-09-19	GRAA	(EXPECTED) GRANT	EP
2025-09-19	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-10-22	AK	DESIGNATED CONTRACTING STATES	EP
2025-10-22	REG	REFERENCE TO A NATIONAL CODE	EP
2025-10-30	REG	REFERENCE TO A NATIONAL CODE	EP
2025-11-13	REG	REFERENCE TO A NATIONAL CODE	EP
2025-12-24	U01	REQUEST FOR UNITARY EFFECT FILED	EP
2025-12-24	U07	UNITARY EFFECT REGISTERED	EP
2025-11-19	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-10	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-13	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-14	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-17	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-20	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-24	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-03	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-21	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-24	PLBI	OPPOSITION FILED	EP
2026-07-25	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-29	REG	REFERENCE TO A NATIONAL CODE	EP
2026-08-05	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP
2026-08-26	26	OPPOSITION FILED	EP
2026-10-01	REG	REFERENCE TO A NATIONAL CODE	EP

Patent & Non-Patent Citations

Cited documents and prior art referenced in search and examination reports.

20 Citations

Cited Patent Documents

WO2021039195

Espacenet

WO2021039196

Espacenet

US2014206269 2014-07-24

Espacenet

KR102309565 2021-10-07

Espacenet

US6257963 2001-07-10

Espacenet

DE102013001197

Espacenet

DE10104410

Espacenet

EP4023379

Espacenet

EP4026640

Espacenet

EP2783794 2014-10-01

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AT502845 2007-06-15

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DE1261772 1968-02-22

Espacenet

US2004630 1935-06-11

Espacenet

EP3241640 2017-11-08

Espacenet

DE102004020364 2006-01-12

Espacenet

EP2732893 2014-05-21

Espacenet

EP0282046 1988-09-14

Espacenet

Non-Patent Scientific Literature (NPL)

- "Fertigungsverfahren 2: Schleifen, Honen, Läppen", 1 January 2005, SPRINGER, Berlin Heidelberg New York, ISBN: 3-540-23496-9, article "Chapter 3 - Aufbau und Zusammensetzung von Schleifwerkzeugen", pages: 19 - 80, XP009568096 * Seiten 19-66 *

- "Kontinuierliches Wälzschleifen von Verzahnungen", 1 July 2008, REISHAUBER , Wallisellen, ISBN: 978-3-033-01447-3, article SCHRIEFER H, THYSSEN W, WIRZ W, SCACCHI G, GRETLER M: "Chapter 4 - Technologien und Techniken des kontinuierlichen Wälzschleifen", pages: 210 - 385, XP009568095 * Seiten 293-316 *

- D15a - Bestätigung der Schweizerischen Nationalbibliothek

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

5 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP4516437A1	A1	2025-03-05	Espacenet
EP	EP4516437B1	B1	2025-10-22	Espacenet
EP	EP4516437C0	C0	2025-10-22	Espacenet
CN	CN121772994A	A	2026-03-31	Espacenet
WO	WO2025051604A1	A1	2025-03-13	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP23195186 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.

Open 148-Doc Register Dossier

Procedural Step

Date: 2025-09-17 Procedure: Examination RFEE

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ROLLING GRINDING TOOL FOR HARD FINISHING TOOTHED COMPONENTS BY CONTINUOUS ROLLING GRINDING

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (39 EPC States)

Parties & Representation

Applicants

Inventors (2)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

Reishauer AG

Legal Status & Event History

Patent & Non-Patent Citations

Cited Patent Documents

Non-Patent Scientific Literature (NPL)

Worldwide Patent Family

Complete European Patent Register Dossier (148 Total Documents)

Recorded Filings & Patent Specifications

European Patent Specification - Granted Patent (B1)

Official European Patent Register Full Dossier

European Patent Application with Search Report (A1)

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