Global Patent Index - EP 0978018 A1

EP 0978018 A1 2000-02-09 - CONTAINER FOR ELECTRICAL DEVICE UTILIZING A METAL AIR CELL

Title (en)

CONTAINER FOR ELECTRICAL DEVICE UTILIZING A METAL AIR CELL

Title (de)

GEHÄUSE FÜR EINE ELEKTRISCHE VORRICHTUNG MIT EINER METALL-LUFT ZELLE

Title (fr)

CONTENANT POUR DISPOSITIF ELECTRIQUE UTILISANT UNE PILE METAL-AIR

Publication

EP 0978018 A1 (EN)

Application

EP 98920836 A

Priority

  • US 9807328 W
  • US 83413397 A

Abstract (en)

[origin: WO9847191A1] A water resistant case (6) for an electrical device such as an electric wristwatch movement powered by a standard high current zinc/air cell. A small aperture (11) in the case wall slows ingress and egress of water vapor to the case so as to increase cell life. The aperture also limits the rate of oxygen flow to the cell cathode rather than the air entry ports in the cell itself. A hydrophobic gas transmissive membrane (45) admits air and water vapor to the aperture without admitting liquid water.

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

G04B 37/08; H01M 2/10; H01M 12/06

IPC 8 full level (invention and additional information)

G04B 37/08 (2006.01); H01M 2/10 (2006.01); H01M 12/06 (2006.01)

CPC (invention and additional information)

G04B 37/081 (2013.01); H01M 2/1044 (2013.01); H01M 2/1094 (2013.01); H01M 12/06 (2013.01)

Citation (search report)

See references of WO 9847191A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9847191 A1 19981022; AU 7358498 A 19981111; BR 9810232 A 20001205; CA 2285969 A1 19981022; CN 1256797 A 20000614; EP 0978018 A1 20000209; JP 2002503379 A 20020129; KR 20010006346 A 20010126; MX 9909410 A 20000731

INPADOC legal status


2001-07-25 [18W] WITHDRAWN

- Date of withdrawal: 20010509

2000-05-31 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KAMENS, BRUCE, H.

2000-05-31 [RIN1] INVENTOR (CORRECTION)

- Inventor name: KURPLE, WILLIAM

2000-05-31 [RIN1] INVENTOR (CORRECTION)

- Inventor name: BENNETT, LEONARD

2000-02-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991014

2000-02-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE