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Current content: 158 967 801 patent documents

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150 730 new documents added

999 816 documents amended

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EP 0059298 B1 19850522 - FLOATING ROOF FOR LIQUID TANKS

Title (en)

FLOATING ROOF FOR LIQUID TANKS

Publication

EP 0059298 B1 19850522 (DE)

Application

EP 81890206 A 19811222

Priority

AT 95681 A 19810302

Abstract (en)

[origin: EP0059298A1] 1. A floating roof (3) for liquid tanks (2), particularly for mineral oil storage tanks or the like, comprising a roof diaphragm (4), which is carried by buoyant chambers (6), characterized in that the buoyant chambers are formed by a plurality of open-bottomed cells (6), which are defined by webs (5) in sealing contact with the underside of the diaphragm.

IPC 1-7

B65D 88/34

IPC 8 full level

B65D 88/34 (2006.01)

CPC (source: EP)

B65D 88/34 (2013.01)

Citation (examination)

AT 318485 B 19741025 - OEMV AG
AT 320226 B 19750127 - WAAGNER BIRO AG

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL

DOCDB simple family (publication)

EP 0059298 A1 19820908; EP 0059298 B1 19850522; AT 370053 B 19830225; AT A95681 A 19820715; DE 3170656 D1 19850627

DOCDB simple family (application)

EP 81890206 A 19811222; AT 95681 A 19810302; DE 3170656 T 19811222