Chemical apparatus and process disinfecting – deodorizing – preser – For deodorizing of – or chemical purification of – or... – Including solid – extended surface – fluid contact reaction...
Patent
1997-05-30
1998-10-27
Thornton, Krisanne
Chemical apparatus and process disinfecting, deodorizing, preser
For deodorizing of, or chemical purification of, or...
Including solid, extended surface, fluid contact reaction...
248166, 2481771, 248901, 422123, 422125, A62B 708
Patent
active
058274839
ABSTRACT:
An essential oil diffuser having a compact foldable tripod support is provided to facilitate carrying the diffuser in luggage such as briefcases or handbags. The essential oil diffuser will heat oil to the proper temperature without risk of overheating or burning the oil through combustion. In order to achieve a compact package having a short vertical dimension, the oil bowl must be placed close to the candle flame and so the diffuser includes a double bowl assembly supported by three folding legs. The double bowl assembly has an upper bowl member and a lower plate member separated by a uniform air gap. The lower plate member has a large radial flange extending beyond the perimeter of the upper bowl member, thereby containing spills. The lower flange of the lower plate member also serves as a heat sink, thereby diffusing and dissipating excess heat from the candle by convection and radiation. The upper bowl member is an oil reservoir supported upon the lower plate member by three transversely projecting attachment points and is heated indirectly from the flame through the lower plate member by conduction through the attachment points, by convection and by radiation. The oil diffusing bowl is positioned above a candle supported on a platform attached to the three folding legs of the collapsible tripod. Each folding leg has an upper segment and a lower segment joined by a link bar press-fitted into the lower leg and rotatable on a hinge pin. The upper leg includes a thermal lock expanding in response to heat from the candle. When the leg is above a selected threshold temperature, it is not possible to disjoin the upper leg from the lower leg due to interference from the expanded thermal lock.
REFERENCES:
patent: 2254906 (1941-09-01), Petrulis
patent: 3355913 (1967-12-01), Frangos
patent: 4579717 (1986-04-01), Gyulay
patent: 4647428 (1987-03-01), Gyulay
patent: 4781895 (1988-11-01), Spector
patent: 4892711 (1990-01-01), Tendick, Sr.
New Venture Engineering, Inc.
Thornton Krisanne
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