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US 5,490,336 AGranted
Air intake filter for electric appliances
OwnerGary L. Smick, Michael L. Kjer +1inventors
InventorsGary L. Smick, Michael L. Kjer, Michael B. Koler
Life of this patent
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Abstract
Add-on filters for heated-air blowers and other electric motor-powered appliances. The filters are fabricated from a washable, flexible, reticulated foam which traps even minute solid and liquid particles and is adhesively attached to the blower housing. A template, which also serves as a protective cover for the adhesive, has index lines along which a blank of the filter material can be trimmed to size and configured for a particular blower intake.
Claims7
An electric motor-powered appliance which comprises:
- a housing;
- an air intake in said housing:
- a screen in said air intake;
- and
- a replaceable filter means for keeping particulate material from reaching the interior of the housing through the air intake;
- said filter means being fabricated from a sheetlike blank of foam material having means for trapping gross and minute particles of solids and liquids while offering minimized resistance to the passage of air therethrough;
- there being an adhesive on one side of said filter;
- and
- said filter means being fixed over said air intake on the external side of said housing by said adhesive and with the filter means trapped against and supported by said screen.
6 more elements
Dependencies are inferred from the claim text.