EP 3519696 B1 20201104 - PUMP DIAPHRAGM
Title (en)
PUMP DIAPHRAGM
Title (de)
PUMPENMEMBRAN
Title (fr)
MEMBRANE DE POMPE
Publication
Application
Priority
- CH 12822016 A 20160929
- EP 2017073841 W 20170921
Abstract (en)
[origin: WO2018060034A1] The invention relates to a pump diaphragm (1) for a diaphragm pump for conveying a fluid, comprising a solid core (3) with a connection device (4) for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body (2) made of rubber having a peripheral clamping edge (6). plaThe solid core (3) is embedded at least partially in the diaphragm body (2), and, according to the invention, the solid core (3) is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body (2) made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.
IPC 8 full level
F04B 15/02 (2006.01); F04B 43/00 (2006.01); F04B 43/02 (2006.01)
CPC (source: CH EP US)
F04B 15/02 (2013.01 - EP US); F04B 43/0054 (2013.01 - CH EP US); F04B 43/02 (2013.01 - CH EP US); F05C 2225/02 (2013.01 - EP US); F05C 2225/06 (2013.01 - EP US); F05C 2225/08 (2013.01 - EP US)
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)
CH 712963 A1 20180329; EP 3519696 A1 20190807; EP 3519696 B1 20201104; US 10900478 B2 20210126; US 2019226469 A1 20190725; WO 2018060034 A1 20180405
DOCDB simple family (application)
CH 12822016 A 20160929; EP 17772683 A 20170921; EP 2017073841 W 20170921; US 201716337474 A 20170921