Porous wick for liquid vaporizers
First Claim
1. A wick material, comprising a porous material, said porous material having pores less than about 250 microns and a void volume ratio of less than about 60%.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to the use of porous materials, for transporting liquids from a reservoir in a vapor dispensing device which addresses many of the shortcomings of the prior art, by selecting pore sizes and void volume ratios of the various wicking materials to fall within an effective range to obtain effective control of liquid delivery. For example, in accordance various aspects of the present invention, a porous polymeric wick is comprised of various polymeric materials having pore sizes less than about 250 microns and void volume ratios from about 25 to about 60%.
96 Citations
10 Claims
- 1. A wick material, comprising a porous material, said porous material having pores less than about 250 microns and a void volume ratio of less than about 60%.
-
3. A porous polymeric wick for use in connection with an air freshening device consisting essentially of:
-
a high density polyethylene wicking material having a void volume ratio of from about 25 to about 60% and having an average pore size on the order of less than 250 microns. - View Dependent Claims (4, 5, 6, 8, 10)
-
-
7. The wick of claim X wherein said wicking material has an average pore size of about 30 microns.
-
9. A vapor dispensing device comprising:
-
a reservoir containing a volatizable liquid a wicking material in fluid communication with said volatizable liquid said vapor dispensing device improved wherein said wicking material exhibits an average pore size in the range of about 4.5 to 29.0 microns and a void volume ratio on the order of between about 30 to about 35%.
-
Specification