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: 157 484 516 patent documents

This week's update (26/07/2024 12:00 CET):

147 225 new documents added

921 612 documents amended

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EP 0029373 B1 19840627 - SELF-PURGING HEAT-EXCHANGER FOR ENGINE COOLING CIRCUITS

Title (en)

SELF-PURGING HEAT-EXCHANGER FOR ENGINE COOLING CIRCUITS

Publication

EP 0029373 B1 19840627 (FR)

Application

EP 80401488 A 19801020

Priority

FR 7928313 A 19791116
FR 8004693 A 19800303

Abstract (en)

[origin: ES8202636A1] The outlet header tank forms two compartments separated by a partition wall provided with a hole in its lower portion and causing a pressure loss at least equal to the head of water in the header tank so that air possibly existing in the compartment is expelled via a pipe.

IPC 1-7

F01P 11/02

IPC 8 full level

F28F 9/02 (2006.01); F01P 7/08 (2006.01)

CPC (source: EP US)

F28F 9/0231 (2013.01 - EP US); F01P 7/08 (2013.01 - EP US); F01P 2025/52 (2013.01 - EP US)

Designated contracting state (EPC)

BE DE GB IT NL SE

DOCDB simple family (publication)

EP 0029373 A1 19810527; EP 0029373 B1 19840627; BR 8007407 A 19810526; DE 3068367 D1 19840802; ES 496878 A0 19820201; ES 8202636 A1 19820201; US 4366858 A 19830104

DOCDB simple family (application)

EP 80401488 A 19801020; BR 8007407 A 19801113; DE 3068367 T 19801020; ES 496878 A 19801114; US 20512680 A 19801110