Global Patent Index - EP 0743452 B1

EP 0743452 B1 20011107 - Diaphragm pump

Title (en)

Diaphragm pump

Title (de)

Membranpumpe

Title (fr)

Pompe à membrane

Publication

EP 0743452 B1 20011107 (EN)

Application

EP 96303301 A 19960513

Priority

GB 9509773 A 19950515

Abstract (en)

[origin: EP0743452A1] A motor driven diaphragm pump comprises an electric motor (2) having mounted thereon a pump assembly (3). The pump assembly (3) comprises a body (4) formed by a first body part (4a) which is mounted on the motor (2) to support the pump assembly on the motor, and a second body part (4b). A crank shaft (5) having an eccentric portion (6) is mounted in the body by a bearing (7) and is coupled to the output shaft (8) of the motor. A multiplicity of pumping chambers (14) are defined between respective diaphragms (11) and covers (12). The diaphragms (11) are coupled to the crank shaft (5) by a coupling member (15) which is a unitary plastics moulding and comprises a hub which is received on the eccentric, a head which is connected to each diaphragm and a flexible connecting web which connects each head to the hub. The pump is particularly suitable for use as an inflation pump for an inflatable bladder forming part of a vehicle seat. <IMAGE>

IPC 1-7

F04B 45/04

IPC 8 full level

F04B 45/04 (2006.01)

CPC (source: EP US)

F04B 45/043 (2013.01 - EP US)

Designated contracting state (EPC)

DE ES FR IT NL PT SE

DOCDB simple family (publication)

EP 0743452 A1 19961120; EP 0743452 B1 20011107; DE 69616648 D1 20011213; DE 69616648 T2 20020508; GB 2301151 A 19961127; GB 2301151 B 19990203; GB 9509773 D0 19950705

DOCDB simple family (application)

EP 96303301 A 19960513; DE 69616648 T 19960513; GB 9509773 A 19950515