EP 3701091 B1 20221130 - SLOTTING MACHINE FOR DIAPHRAGMA WALLS
Title (en)
SLOTTING MACHINE FOR DIAPHRAGMA WALLS
Title (de)
SCHLITZWANDFRÄSE
Title (fr)
MACHINE DE FORAGE PUR LES MUR DE DIAPHRAGMA
Publication
Application
Priority
- DE 102018131226 A 20181206
- EP 2019078134 W 20191017
Abstract (en)
[origin: WO2020114656A1] The invention relates to a specialized civil engineering machine, in particular a slotted wall milling machine, comprising at least one rotating tool and a tool drive which is arranged within a housing of the specialized civil engineering machine and is sealed from the surroundings by at least one bearing seal in the region of the machine shaft outlet from the housing to the driven tool. The invention is characterized in that the bearing seal comprises at least two separate seal elements, the arrangement of which forms a sealed chamber lying between the seal elements, wherein a pressure compensating device is provided which controls the chamber pressure in the sealed chamber according to the ambient pressure of the specialized civil engineering machine.
IPC 8 full level
E02D 17/13 (2006.01); E02F 3/18 (2006.01); E02F 3/20 (2006.01)
CPC (source: EP US)
E02D 3/12 (2013.01 - US); E02D 17/13 (2013.01 - EP US); E02F 3/18 (2013.01 - EP); E02F 3/205 (2013.01 - EP US); E02F 3/246 (2013.01 - EP US)
Citation (opposition)
Opponent : BAUER Maschinen GmbH
- EP 0152924 A2 19850828 - RISOTTI ENRICO [IT], et al
- EP 1630298 A1 20060301 - BAUER MASCHINEN GMBH [DE]
- EP 1703023 A1 20060920 - BAUER MASCHINEN GMBH [DE]
- DE 9107187 U1 19910725 - BAUER SPEZIALTIEFBAU [DE]
- FR 2806111 A1 20010914 - CIE DU SOL [FR]
- EP 2667036 A1 20131127 - ALSTOM RENEWABLE TECHNOLOGIES [FR]
- JP H10331187 A 19981215 - KOKEN BORING MACHINE CO
- DE 1188392 B 19650304 - BORG WARNER
- GB 619082 A 19490303 - MEGATOR PUMPS & COMPRESSORS LT, et al
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
DOCDB simple family (publication)
DE 102018131226 A1 20200610; CN 113167046 A 20210723; CN 113167046 B 20230110; EP 3701091 A1 20200902; EP 3701091 B1 20221130; JP 2022520146 A 20220329; JP 7252337 B2 20230404; US 2022049449 A1 20220217; WO 2020114656 A1 20200611
DOCDB simple family (application)
DE 102018131226 A 20181206; CN 201980081128 A 20191017; EP 19789960 A 20191017; EP 2019078134 W 20191017; JP 2021531126 A 20191017; US 201917299009 A 20191017