Global patent index - EP 1029177 A1

EP 1029177 A1 2000-08-23 - RADIAL PISTON PUMP

Title (en)

RADIAL PISTON PUMP

Title (de)

RADIALKOLBENPUMPE

Title (fr)

POMPE A PISTONS RADIAUX

Publication

EP 1029177 A1 (DE)

Application

EP 98956902 A

Priority

  • DE 19748750 A
  • EP 9806927 W

Abstract (en)

[origin: DE19748750A1] The inventive radial piston pump has a number of cylinder bores in a pump housing to accommodate the pistons which slide into them. Said cylinder bores are plugged by pressed-in stoppers (3). Pressure channels are incorporated into the stoppers and all of the stoppers are sealed by a flat spiral spring (6) which serves as a return valve. Each stopper (3) has at least one side discharge channel (8, 9) in order to increase the outflow cross section through the pressure channels.

IPC 1-7 (main, further and additional classification)

F04B 1/04; F04B 53/10

IPC 8 full level (invention and additional information)

F04B 1/04 (2006.01); F04B 53/10 (2006.01)

CPC (invention and additional information)

F04B 1/0465 (2013.01); F04B 53/1075 (2013.01); Y10T 137/7843 (2015.04)

Citation (search report)

See references of WO 9924712A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19748750 A1 19990506; EP 1029177 A1 20000823; US 6416298 B1 20020709; WO 9924712 A1 19990520

INPADOC legal status

2002-12-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020604

2002-03-13 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020123

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000404

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT