Electric resistance heating devices – Heating devices – Vaporizer
Patent
1993-11-24
1996-11-12
Walberg, Teresa J.
Electric resistance heating devices
Heating devices
Vaporizer
392390, A61L 903
Patent
active
055748210
ABSTRACT:
A volatile substance dispenser plugs into an electrical outlet to disseminate a vapor into a selected area. After the volatile material is consumed the dispenser is simply discarded. The combined use of a fixed resistor heat pad screen printed within the dispenser, and a thermal conductor, provides unusually uniform heat to a volatile material absorbent substrate within the dispenser, providing economical vaporization of the volatile material. Specific versions of the invention as a fragrance dispenser are described. A unique infant safe electrical connection for the dispenser is also disclosed.
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patent: 4544592 (1985-10-01), Spector
patent: 4731520 (1988-03-01), Glucksman
patent: 4837421 (1989-06-01), Luthy
patent: 4849606 (1989-07-01), Martens
patent: 4889286 (1989-12-01), Spector
patent: 5136684 (1992-08-01), Lonker
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