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US 5,668,921 AGranted
Hot-air dryer with infrared heater and slit-shaped outlet
OwnerKarl-Hermann Esslerinventor
Life of this patent
Estimating the term…
Abstract
An elongated housing has a pair of radiation-transparent strips defining a slit from which hot air is directed at an article to be dried. The air passes over a radiant heater in the housing parallel to the slit and preferably through holes in a reflector which reflects radiation from the radiant heater toward the radiation-transmissive strips.
Claims18
An apparatus for drying an article comprising:
- a housing forming an elongated plenum formed with a slit opening toward an article to be dried;
- means for feeding drying air to said plenum whereby said article is treated with warm air emerging from said slit;
- an infrared irradiator in said housing,
- said slit extending along a longitudinal dimension of said slit and said infrared irradiator being elongated and extends in said housing along said slit, said slit being defined between two walls composed of radiation-permeable material whereby said article is exposed to radiation from said infrared irradiator through said walls and said air by combustion before said warm air passes through said slit.
1 more element
An apparatus for drying an article comprising:
- a housing forming an elongated plenum formed with a slit opening toward an article to be dried;
- means for feeding drying air to said plenum whereby said article is treated with warm air emerging from said slit;
- an infrared-irradiator in said housing and a reflector extending along said infrared-irradiator over an entire length thereof on a side of said infrared-irradiator turned away from said slit, said reflector being provided with throughgoing bores oriented radially to said infrared-irradiator.
Dependencies are inferred from the claim text.