GPI coverage and content

You can use Global Patent Index (GPI) to carry out detailed searches in the EPO's worldwide bibliographic (DOCDB), legal event (INPADOC) and full-text data sets, and download or visualise the search results for statistical analysis.

Current content: 159 361 214 patent documents

This week's update (25/10/2024 12:00 CET):

149 148 new documents added

988 023 documents amended

GPI key values

Run regular monitoring (e.g. monthly or quarterly) of technical areas or companies

Use built-in charts to visualise technical trends and patenting activity of companies

Choose the data you want to see and download to focus on what you are interested in

Run data quality assessments to measure the risk of incomplete search results

EP 1471260 B1 20070905 - Circulation pump with valve arrangement

Title (en)

Circulation pump with valve arrangement

Title (de)

Umwälzpumpe mit Ventileinrichtung

Title (fr)

Pompe de circulation avec dispositif de soupape

Publication

EP 1471260 B1 20070905 (DE)

Application

EP 04003128 A 20040212

Priority

DE 10318701 A 20030424
DE 10331973 A 20030714

Abstract (en)

[origin: EP1471260A2] The recirculating pump (1) and especially for a heating system, with a valve (13) which alters the cross section of the inflow opening according to temperature, has a control unit (14) within the pump housing (2) to set the valve. The control unit and the valve are at opposite sides of the pump motor (3,4). The valve setting unit (15) is at the valve setting rod (17) which is coaxially through the motor shaft (7). The control unit has a fluid-filled expansion vessel (19).

IPC 8 full level

F04D 15/00 (2006.01)

CPC (source: EP)

F04D 15/0022 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1471260 A2 20041027; EP 1471260 A3 20050914; EP 1471260 B1 20070905; DE 502004004841 D1 20071018

DOCDB simple family (application)

EP 04003128 A 20040212; DE 502004004841 T 20040212