Evaporative humidifier pad

Details Evaporative humidifier pad Evaporative humidifier pad

1998-12-03

2000-08-29

Loney, Donald

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428154, 428155, 261106, 261107, B32B 310, B01D 4700

Patent

active

061105643

ABSTRACT:
A humidifier pad with multiple layers of slit and expanded paper laminated together. At least one, and in some preferred embodiments, up to half of the paper layers comprise substantially nonwicking paper and the remaining layers comprise highly absorbent wicking paper. Wick type humidifier pads are particularly useful in humidifiers wherein the lower portion of the pad is submerged in a reservoir of water. The upper portion of the pad, exposed to a flow of air to be humidified, is supplied with water due to the high rate of capillary rise featured by the wicking paper layers. Including non-wicking layers wetted by the wicking layers provide an output capacity comparable to conventionally constructed pads which include all wicking paper layers and an attendant saving of the cost of materials.

REFERENCES:
patent: 2637540 (1953-05-01), Rowe
patent: 2955064 (1960-10-01), Frohmader
patent: 5374381 (1994-12-01), Schuld

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