Optional device for electrical appliance
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United States of America Patent
Stats
-
Apr 3, 2018
Issued Date -
N/A
app pub date -
Mar 23, 2016
filing date -
Mar 25, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An option device for an electrical appliance of the invention is provided with a filter for purifying exhaust air from the electrical appliance, and an electric fan, wherein the air flow resistance in an external air inlet port formed independently of a suction port for sucking exhaust air from the electrical appliance is adjustable. According to this configuration, it is easy to secure balance between the exhaust air flow rate of the electrical appliance and the suction force by the electric fan without variably controlling the rotational speed of the electric fan.
First Claim
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B41J Class
- 28.29 % this patent is cited more than
- 7 Age
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| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 3, 2025 |
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