Dispensing indicator for an active substance dispenser

Details Dispensing indicator for an active substance dispenser Dispensing indicator for an active substance dispenser

2006-07-11

2006-07-11

Paik, Sang (Department: 3742)

Electric resistance heating devices

Heating devices

Vaporizer

C392S390000, C374S161000

Reexamination Certificate

active

07076160

ABSTRACT:
The indicator is a non-electric indicator and is based on a thermochromic material which is applied on a diffuser or thermodiffuser device of volatile substances (1), so that when heating of the latter takes place to evaporate the volatile substance contained in a reservoir associated with said device (1), when a determined temperature is reached the indicator, constituted by a plastic insert (4) with thermochromic pigments, changes colour and indicates that the diffuser device (1) is in diffusion conditions. The colour change product can be constituted by the combination of some thermochromic and normal paints applied on the external surface of the device, so that when a determined temperature is reached the thermochromic paint changes colour and originates an indication of the device being in diffusion conditions.

REFERENCES:
patent: 2308087 (1943-01-01), Lappala
patent: 4032687 (1977-06-01), Hornsby, Jr.
patent: 4105583 (1978-08-01), Glover et al.
patent: 4156365 (1979-05-01), Heinmets et al.
patent: 4220680 (1980-09-01), Corsi
patent: 4228761 (1980-10-01), Glover et al.
patent: 4725712 (1988-02-01), Schroeder
patent: 4804821 (1989-02-01), Glucksman
patent: 4933525 (1990-06-01), St. Phillips
patent: 5175791 (1992-12-01), Muderlak et al.
patent: 5558700 (1996-09-01), Shibahashi et al.
patent: 6228804 (2001-05-01), Nakashima
patent: 0837011 (1998-04-01), None
patent: 2092744 (1982-08-01), None
patent: 2310283 (1997-08-01), None
patent: 2312955 (1997-11-01), None
patent: 2348703 (2000-10-01), None
patent: 2351550 (2001-01-01), None

Affiliated with

Also associated with

Rating

Dispensing indicator for an active substance dispenser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dispensing indicator for an active substance dispenser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispensing indicator for an active substance dispenser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3608017