Global Patent Index - EP 1047878 A1

EP 1047878 A1 2000-11-02 - PISTON PUMP FOR A HIGH-PRESSURE CLEANING DEVICE

Title (en)

PISTON PUMP FOR A HIGH-PRESSURE CLEANING DEVICE

Title (de)

KOLBENPUMPE FÜR EIN HOCHDRUCKREINIGUNGSGERÄT

Title (fr)

POMPE A PISTON POUR APPAREIL DE NETTOYAGE HAUTE PRESSION

Publication

EP 1047878 A1 (DE)

Application

EP 98966605 A

Priority

  • DE 19801146 A
  • EP 9807791 W

Abstract (en)

[origin: DE19801146C1] The reciprocating piston pump has a pump housing with a pump block and a pump head having at least one pump chamber (6) containing a driven piston (7). The pump chambers and/or coupling lines (12,14) passing through the interface between the pump block and the pump head are fitted with inserts (17,18) of a plastics material which softens upon heating as are the pump chambers or coupling lines, for ultrasonic, vibration, or friction welding between them.

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

F04B 53/00

IPC 8 full level (invention and additional information)

B23K 20/10 (2006.01); B23K 20/12 (2006.01); F04B 1/14 (2006.01); F04B 53/00 (2006.01); F04B 53/10 (2006.01); F04C 15/06 (2006.01)

CPC (invention and additional information)

F04C 15/066 (2013.01); F04B 1/141 (2013.01); F04B 53/007 (2013.01); F04B 53/10 (2013.01); F05C 2225/00 (2013.01)

Citation (search report)

See references of WO 9936700A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI LU NL PT SE

EPO simple patent family

DE 19801146 C1 19990624; AT 216465 T 20020515; AU 2412899 A 19990802; CN 1110634 C 20030604; CN 1285898 A 20010228; DK 1047878 T3 20020708; EP 1047878 A1 20001102; EP 1047878 B1 20020417; ES 2175856 T3 20021116; JP 2002509225 A 20020326; US 6428291 B1 20020806; WO 9936700 A1 19990722

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