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: 157 117 910 patent documents

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

139 301 new documents added

1 340 825 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 1647678 B1 20070321 - Hydraulic lash adjuster

Title (en)

Hydraulic lash adjuster

Title (de)

Hydraulisches Spielausgleichselement

Title (fr)

Dispositif hydraulique de rattrapage de jeu

Publication

EP 1647678 B1 20070321 (DE)

Application

EP 05020320 A 20050917

Priority

DE 102004050190 A 20041015
US 61881004 P 20041014

Abstract (en)

[origin: EP1647678A1] The hydraulic play adjustment element (1) has a cylindrical housing (2) with an axially movable piston (3). The high-pressure area (6), which is responsible for the hydraulic play, lies between front sides (4,5) of the piston and the housing. Height (H-f)of the Chamfer (16) provided between the front face (4) and passage area of the outer casing (10) is greater/equal to height (H r) of ring extension.

IPC 8 full level

F01L 1/24 (2006.01)

CPC (source: EP)

F01L 1/2405 (2013.01); F01L 2305/00 (2020.05)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1647678 A1 20060419; EP 1647678 B1 20070321; DE 502005000494 D1 20070503

DOCDB simple family (application)

EP 05020320 A 20050917; DE 502005000494 T 20050917