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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: 158 678 210 patent documents

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139 196 new documents added

884 989 documents amended

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EP 0830491 B1 20010523 - OVERHEAD DOOR-CLOSING UNIT

Title (en)

OVERHEAD DOOR-CLOSING UNIT

Title (de)

OBENTÜRSCHLIESSER

Title (fr)

SYSTEME DE FERMETURE DE PORTE PAR LE HAUT

Publication

EP 0830491 B1 20010523 (DE)

Application

EP 97914081 A 19970124

Priority

DE 9700122 W 19970124
DE 19603186 A 19960130

Abstract (en)

[origin: WO9728341A1] The invention concerns an overhead door-closing unit in which the two opposed pistons (2, 3) usually used are replaced by a one-piece piston (1). This one-piece piston design increases the efficiency of the door-closing unit.

IPC 1-7

E05F 3/10

IPC 8 full level

E05F 3/10 (2006.01)

CPC (source: EP)

E05F 3/104 (2013.01); E05F 3/227 (2013.01); E05Y 2900/132 (2013.01)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 9728341 A1 19970807; AT E201477 T1 20010615; DE 19603186 A1 19970731; DE 19603186 C2 19980219; DE 59703586 D1 20010628; EP 0830491 A1 19980325; EP 0830491 B1 20010523; ES 2113337 T1 19980501; ES 2113337 T3 20010916

DOCDB simple family (application)

DE 9700122 W 19970124; AT 97914081 T 19970124; DE 19603186 A 19960130; DE 59703586 T 19970124; EP 97914081 A 19970124; ES 97914081 T 19970124