Title:
RESIDUAL LIFE INDICATOR
Document Type and Number:
WIPO Patent Application WO2003028842
Kind Code:
A3
Abstract:
The present invention is directed toward a residual life indicator. The residual life indicator comprises a solid, surface active, waterproof support medium (20) having a concentric pattern (30) imprinted thereon. The concentric pattern comprises a center pattern (40) and at least one outer pattern (50). An indicator dye spot (60) is disposed within the center pattern of the concentric patter. When the indicator dye is exposed to contaminants, the indicator dye spot visually moves toward the outer pattern.
Inventors:
WATSON EDGAR JR (US)
CARAHER TIMOTHY W (US)
BENNETT MINDY R (US)
ROEHL JOSEPH E (US)
GREENFIELD MARK J (US)
ERICSSON AMBER J (US)
CARAHER TIMOTHY W (US)
BENNETT MINDY R (US)
ROEHL JOSEPH E (US)
GREENFIELD MARK J (US)
ERICSSON AMBER J (US)
Application Number:
PCT/US2002/031042
Publication Date:
November 20, 2003
Filing Date:
September 30, 2002
Export Citation:
Assignee:
SCENTCZAR CORP (US)
WATSON EDGAR JR (US)
CARAHER TIMOTHY W (US)
BENNETT MINDY R (US)
ROEHL JOSEPH E (US)
GREENFIELD MARK J (US)
ERICSSON AMBER J (US)
WATSON EDGAR JR (US)
CARAHER TIMOTHY W (US)
BENNETT MINDY R (US)
ROEHL JOSEPH E (US)
GREENFIELD MARK J (US)
ERICSSON AMBER J (US)
International Classes:
G01N31/22; (IPC1-7): G01N31/22
Foreign References:
| USRE36062E | 1999-01-26 | |||
| US4195057A | 1980-03-25 | |||
| US5447688A | 1995-09-05 | |||
| US5045283A | 1991-09-03 | |||
| US6514462B1 | 2003-02-04 | |||
| US5666949A | 1997-09-16 | |||
| US3966440A | 1976-06-29 | |||
| US5302351A | 1994-04-12 | |||
| US4488547A | 1984-12-18 | |||
| US4138216A | 1979-02-06 |
Download PDF:
Previous Patent: OPTIMIZATION OF MULTIPLE COMPRESSOR TRAINS
Next Patent: SLOTTED-HOLE SIEVE ARRANGEMENT
Next Patent: SLOTTED-HOLE SIEVE ARRANGEMENT