Global Patent Index - EP 0872413 A3

EP 0872413 A3 2000-04-12 - Floating working volume

Title (en)

Floating working volume

Title (de)

Schwebender Nutzraum

Title (fr)

Volume flottant utile

Publication

EP 0872413 A3 (DE)

Application

EP 98810136 A

Priority

CH 63297 A

Abstract (en)

[origin: EP0872413A2] The balloon (101) is of prolate spheroid shape, like a rugby ball, with its longitudinal axis vertical. The room (102) open to the public is situated at the bottom end of the vertical shape and consists of a small balloon compartment of variable volume, filled with air and kept at above atmospheric pressure. It may have reclining sets (122). The air-filled room acts as a compensating ballonet if the balloon gains height and the external air pressure drops. The ballonet is separated from the main helium-filled balloon by a flexible partition (121) which may bulge upwards or downwards to compensate for expansion or contraction of the helium gas.

IPC 1-7 (main, further and additional classification)

B64B 1/50

IPC 8 full level (invention and additional information)

E04H 15/22 (2006.01); G09F 21/10 (2006.01)

CPC (invention and additional information)

E04H 15/22 (2013.01); G09F 21/10 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

EP 0872413 A2 19981021; EP 0872413 A3 20000412; EP 0872413 B1 20020828; AT 222870 T 20020915; DE 59805282 D1 20021002; US 6116538 A 20000912