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Heated volatile dispensing device with dye-based use-up indicator

一种指示器、染料的技术，应用在测量时间间隔的装置、捕捉或杀灭昆虫的装置、使用化学指标进行分析等方向，能够解决不易懂、降低消费者接受的可能性、增加指示器成本等问题，达到减少不满、制造成本低、避免浪费的效果

Inactive Publication Date: 2009-04-22
SC JOHNSON & SON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these devices often require consumer intervention to initiate dye migration and sometimes complex structures to control dye usage
They thus unnecessarily increase the cost of the indicator and may also reduce the likelihood of consumer acceptance, especially where the way the product is used is not conceptually easy to understand

Method used

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  • Heated volatile dispensing device with dye-based use-up indicator
  • Heated volatile dispensing device with dye-based use-up indicator
  • Heated volatile dispensing device with dye-based use-up indicator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] see first figure 1 and figure 2 , which shows an air treatment device 10 having a base 11 , a chamber 12 filled with a mixture of migratable dyes 15 / 16 , a meltable wax cover 13 and a porous matrix layer 14 . The base 11 is semicircular, cup-shaped, heat resistant and impermeable to dyes. The dye chamber 12 resembles a semicircle and is aligned with both the base 11 and the semicircular visible location 29 on top of the matrix layer 14 . The substrate layer 14 is circular in top view. The covering 13 is preferably in the form of a semicircular top.

[0042] The porous substrate layer 14 is preferably pre-soaked with an insect repellent 17 that is dispensed into the air when the substrate layer 14 is heated. An electrical heater 18 heats the substrate layer 14 and is powered by conventional electrical connections 19 . One of the functions of the heater 18 is to melt the wax of the covering 13 when it is switched on. When the heater 18 is used, the dye 15 / 16 is t...

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PUM

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Abstract

Heated volatile dispensers are disclosed that are provided with automated dye-based use-up indicators. Multiple migrateable dyes of different colors are positioned adjacent a porous substrate. Heating of the substrate, such as a slab impregnated with an insect repellent, both causes the impregnated chemical to dispense from the slab and the indicator dyes to migrate to one or more visible positions. One dye migrates to a visible position faster than a dye of a different color. Further heating may cause one or both dyes to change color at a visible position. The dye movement imparts information about the degree of use-up of the impregnating chemical.

Description

field of invention [0001] The present invention relates to indicators that provide information to consumers about the degree of consumption of consumable air treatment products. More specifically, the present invention relates to air treatment dispensing devices in which a heater causes the dispensing of air treatment chemicals and also activates a consumption reminder system in the form of a multiple dye indicator. Background technique [0002] A variety of prior art devices are known that use heat to dispense air treatment chemicals. For example, it is known to impregnate or coat porous pads, wicks or other substrates with volatile air treatment chemicals. When heat is applied to the substrate, air treatment chemicals are dispensed into the air. [0003] In some of these devices, a portion of the substrate is immersed in an associated reservoir of an air treatment chemical (typically a mixture of solvent and volatile treatment chemical). The porous matrix then acts as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H3/00G04F1/00A61L9/02A01M1/20G01N31/22
CPCA01M1/2077A61L9/02G04F1/06A61L9/03G01N31/229B60H3/00G04F1/00A01M1/20G01N31/22
Inventor 乔尔·E·阿代尔布赖恩·T·戴维斯戈帕尔·P·阿南思帕德马·P·瓦拉纳西
Owner SC JOHNSON & SON INC
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