Global Patent Index - EP 1019739 A1

EP 1019739 A1 2000-07-19 - ZERO VOLTAGE WRIST STRAP MONITOR

Title (en)

ZERO VOLTAGE WRIST STRAP MONITOR

Title (de)

ARMBANDKONTROLL ANORDNUNG

Title (fr)

SYSTEME DE CONTROLE POUR BANDE DE POIGNET INDUISANT UNE TENSION NULLE

Publication

EP 1019739 A1 (EN)

Application

EP 98934634 A

Priority

  • US 9814878 W
  • US 5294497 P
  • US 6749698 A

Abstract (en)

[origin: WO9904277A1] A dual conductor wrist strap monitoring circuit that allows the operator to remain at approximately zero volts. The monitor couples the operator, through resistors, to two voltage potentials equal in value with respect to earth ground, but opposite in polarity. Because typically there is symmetry in the resistance in each side of a dual conductor wrist strap, the operator is at zero potential with respect to earth ground. There is still a conductive path for the operator to discharge any charge potential they build up with no negative affect on decay times.

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

G01R 31/02; A61N 1/14

IPC 8 full level (invention and additional information)

A61N 1/14 (2006.01); G01R 31/02 (2006.01)

CPC (invention and additional information)

A61N 1/14 (2013.01); G01R 31/025 (2013.01)

Citation (search report)

See references of WO 9904277A1

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 9904277 A1 19990128; WO 9904277 A9 19990415; AU 8411798 A 19990210; EP 1019739 A1 20000719

INPADOC legal status


2004-08-11 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040203

2000-07-19 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000214

2000-07-19 [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