EP 3655657 A1 20200527 - A ROTARY DIAPHRAGM POSITIVE DISPLACEMENT PUMP
Title (en)
A ROTARY DIAPHRAGM POSITIVE DISPLACEMENT PUMP
Title (de)
VERDRÄNGERKREISELMEMBRANPUMPE
Title (fr)
POMPE VOLUMÉTRIQUE À DIAPHRAGME ROTATIF
Publication
Application
Priority
- GB 201711610 A 20170719
- GB 2018051970 W 20180711
Abstract (en)
[origin: GB2564681A] A rotary pump comprising a housing 1 defining an annular chamber with inlet and outlet ports (12, 11, Fig. 1), a flexible annular diaphragm 3 forming one side of the chamber spaced opposite an annular wall on the housing 1, a partition extending between inlet and outlet ports, to the diaphragm 3 which is configured to be pressed against the opposite wall of the housing 1 by a rotating means to force fluid drawn in at the inlet port (12, Fig. 1) around the chamber and to expel it at the outlet port (11, Fig. 1); the rotary pump comprises a reinforcement ring 4 surrounding the rotating means and connected to a central region of the diaphragm 3, the reinforcement ring 4 comprises a crenulated portion (30, Fig. 4) with a plurality of radial projections embedded in the central region of the diaphragm 3 for securing the reinforcement ring 4 to the central region of the diaphragm 3.
IPC 8 full level
F04B 43/14 (2006.01); F04B 43/00 (2006.01); F04C 5/00 (2006.01)
CPC (source: EP GB)
F01C 21/08 (2013.01 - EP); F04B 43/0054 (2013.01 - EP); F04B 43/0072 (2013.01 - EP); F04B 43/02 (2013.01 - GB); F04B 43/14 (2013.01 - EP); F04C 2/02 (2013.01 - GB); F04C 5/00 (2013.01 - EP GB); F01C 21/08 (2013.01 - GB)
Citation (search report)
See references of WO 2019016521A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
GB 201711610 D0 20170830; GB 2564681 A 20190123; GB 2564681 B 20200226; EP 3655657 A1 20200527; WO 2019016521 A1 20190124
DOCDB simple family (application)
GB 201711610 A 20170719; EP 18745674 A 20180711; GB 2018051970 W 20180711